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~ '" TE2 UP TO 8 TERMINALS -
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~ National ~ Semiconductor 400014 R
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TRADEMARKS Following is the most cu
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II) c ~ ~National ~ ~ Semiconductor
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Table of Contents (Continued) Secti
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Alpha-Numeric Index(continUed) DS36
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Section 1 Local Area Networks IEEE
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~National ~ Semiconductor DP8390C/N
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3.0 Functional Description (Continu
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5.0 Pin Descriptions (Continued) BU
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6.0 Direct Memory Access Control (D
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7.0 Packet Reception (Continued) Re
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8.0 Packet Transmission (Continued)
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10.0 Internal Registers (Continued)
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.----------------------------------
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12.0 Loopback Diagnostics (Continue
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13.0 Bus Arbitration and Timing The
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13.0 Bus Arbitration and Timing (Co
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15.0 Switching Characteristics AC S
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15.0 Switching Characteristics (Con
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AC Timing Test Conditions Input Pul
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2.0 Block Diagram COL CRS PROTOCOL
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4.0 Transmit/Receive Packet Encapsu
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5.0 Pin Descriptions (Continued) BU
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7.0 Packet Reception (Continued) fo
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7.0 Packet Reception (Continued) Er
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9.0 Remote DMA The Remote DMA chann
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11.0 Initialization Procedures (Con
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13.0 Bus Arbitration and Timing The
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15.0 Switching Characteristics AC S
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AC Timing Test Conditions Input Pul
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2.0 Block Diagram TRANSCEIVER CABLE
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PCC Connection Diagram 39.0. 39.0.
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6.0 Absolute Maximum Ratings Recomm
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9.0 Timing and Load Diagrams (Conti
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2.0 Block Diagram COAX CABLE r ____
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~~L ~------------------------------
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6.0 Absolute Maximum Ratings (Note
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I: • • • • • • Interrup
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PAL20LB Decode and DMA Interface Lo
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~ U16/8 R1 R1,R2=4.7k.o. Note: For
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Although Cheapernet is intended for
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The transmitted packet from the SNI
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Truth Table for Various Collision D
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CHEAPERNET APPLICATION WITH THE DP8
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DP8390 Network Interface Controller
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ping between the received address a
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If the current local DMA address ev
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6.2 Dual Port Memory One popular me
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StarLAN With The DP839EB Evaluation
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SUPPORTING DOCUMENTS The following
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Pulse Transformer U3 .----. j " "P>
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ELECTROSTATIC DISCHARGE TEST (ESD)
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Section 2 Contents DP8340INS32440 I
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.. 0 C'I C") en .... z 0 C") GO Go
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~ 'OIl' N CO) (J) Z .... o 'OIl' CO
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Timing Characteristics Oscillator F
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Timing Waveforms (Continued) TA REG
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.. ... ~ ~National ~ ~ Semiconduc
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Detailed Functional Pin Description
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Message Format (Continued) DATA REC
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Timing Characteristics (Notes 2, 6,
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Timing Waveforms (Continued) 4T±(T
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Typical Applications (Continued) +5
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~ ..,. r---------------------------
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Timing Characteristics (Continued)
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Functional Timing Waveforms (Contin
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Typical Applications (Continued) DA
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C") "Ot "Ot N C") en ...... z C") "
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Absolute Maximum Ratings (Note 1) I
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(W) r------------------------------
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M r--------------------------------
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MUX~ __________________ The BIPLAN
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U) ,-------------------------------
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~ .--------------------------------
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An EPROM implementation was selecte
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MASTER MUL TIPLEXING/DE-MUL TIPLEXI
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AN·496 '" 0, '" (U17/ (U23/6) TO 5
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AN-496 t W19 ~ J2-43 I' [; 0 J2-42
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AN·496
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DP8342/DP8343 HIGH SPEED INTERFACE
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2.0 Connection Diagram A13- 12 A12-
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3.0 Pin Descriptions (Continued) Si
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~ ~ 4.0 Electrical Specifications (
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4.0 Electrical Specifications (Cont
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~ ~ 4.0 Electrical Specifications (
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c( '
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~L ______________ ___ ~ ~ 4.0 Elect
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5.0 Instruction Set Overview (Conti
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6.0 Instruction Set Reference (Cont
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~ ,--------------------------------
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~ C') 6.0 Instruction Set Reference
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! 6.0 Instruction Set Reference (Co
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~ ~ 6.0 Instruction Set Reference (
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== ~ 6.0 Instruction Set Reference
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7.0 CPU Registers (Continued) BIT I
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7.0 CPU Registers (Continued) BIRO
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7.0 CPU Registers (Continued) 76543
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7.0 CPU Registers (Continued) BIT D
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7.0 CPU Registers (Continued) BIT D
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8.0 Remote Interface and Arbitratio
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~ ~ HASM state TCU state eLK-OUT RE
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~I tn tn ...._,__'RS A RS, RSC IMEM
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~ 01 CO RASM stat. TCU stat. CLK-OU
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~ ~ I\~"'''' I 'ow = "[OW2-0) , RS
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~ 8l HASM stat. TCU stat. CU- C» b
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.----------------------------------
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10.0 Transceiver (Continued) (a) 32
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10.0 Transceiver (Continued) TABLE
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10.0 Transceiver (Continued) dotted
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10.0 Transceiver (Continued) TABLE
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10.0 Transceiver (Continued) {also
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Decoding Bit Fields with the JRMK I
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Receiver Interrupts/Flags for the D
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****************DA ISR*************
Page 354 and 355: "Interrupts"-A Powerful Tool of the
Page 356 and 357: TABLE II. (lCR) Interrupt Mask Bits
Page 358 and 359: Running the DP8344 with wait states
Page 360 and 361: » z I U'I Q 01:00 INSTRUCTION ADDR
Page 362 and 363: WHY EPROM SOFT-LOAD? In a stand-alo
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Page 366 and 367: RESET ~. Timing at Beginning of Ins
Page 368 and 369: .. I CRYSTAL ~~~.~ I UP TO 64K OP83
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Page 374 and 375: The roll-off frequency, Fro, should
Page 376 and 377: ceives messages whose first frame a
Page 378 and 379: RECEIVER INTERRUPT The receiver int
Page 380 and 381: JMP n LJMP n JMPR Rs JMPI Ptr JRMK
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Page 386 and 387: 00044 F90a :J- 226 Z • 227 MOVE A
Page 388 and 389: l> Z 00074 80BD 2'18 en • 00075 0
Page 390 and 391: Section 3 ISDN Components
Page 392 and 393: Introduction To National Semiconduc
Page 394 and 395: NSC Solutions for Layers 2 and 3 Na
Page 396 and 397: NSC Solutions: Systems Level Basic
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Page 400 and 401: ~National ~ Semiconductor PRELIMINA
Page 402 and 403: ISDN DEFINITIONS "B" Channel, or DS
Page 406 and 407: Section 4 UARTs
Page 408 and 409: ~National ~ Semiconductor INS8250,
Page 410 and 411: 1.0 Absolute Maximum Ratings If Mil
Page 412 and 413: 3.0 AC Electrical Characteristics T
Page 414 and 415: 4.0 Timing Waveforms (Continued) Re
Page 416 and 417: 6.0 Pin Descriptions (Continued) OL
Page 418 and 419: 8.0 Registers The system programmer
Page 420 and 421: 8.0 Registers (Continued) 8.3 PROGR
Page 422 and 423: Basic Connections of an INS8250 to
Page 424 and 425: ~National ~ Semiconductor NS16450,
Page 428: 3.0 AC Electrical Characteristics T
Page 431 and 432: ~ ID o N CI) (f) Z ::::: o ID ...,.
Page 433 and 434: ~ II) o N ~ Z ::::::: c II) ..,. ~
Page 435 and 436: c( ~ ~ co en z :::: o Lt) ~ .... U
Page 437 and 438: 8.0 Registers (Continued) 8.5 INTER
Page 439 and 440: NS16450/lNS8250A/NS16C450/lNS82C50A
Page 441 and 442: ~ ~ ~National ~ ~ Semiconductor NS
Page 445 and 446: 3.0 AC Electrical Characteristics (
Page 451 and 452: 6.0 Pin Descriptions (Continued) Ad
Page 453 and 454: ~ II') II') CD .,... en z 7.0 Conne
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~ LI) LI) CD ..... (f) z 8.0 Regist
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8.0 Registers (Continued) TABLE VI.
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8.0 Registers (Continued) Bit 6: Th
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NS16550A Ol '" This shows the basi
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.... en ..,. z • c( CPU FIGURE 2.
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FIGURE 4. NS16550A Initialization a
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.,... en .., :Z > > ENABLE CPU INT
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en -=:r • Z
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#3/30/87••••• DIAPPS.ASM
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.... ~ • z c( bne cbufloop #Jump
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eq rdrbr movd r6,rbufoff bsr compar
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ye: ret 0 # # #********************
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.set icu fprt,14 *aO .set icu-mctl,
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eq rtmout cmpb rO, $OxOc2 beq threi
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i • z
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AN·493 AC Electrical Characteristi
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AN·493 .j>. AC Electrical Characte
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co ,-------------------------------
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4.0 AC Electrical Characteristics V
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::8 ~ 5.0 Timing Waveforms z Read a
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5.0 Timing Waveforms (Continued) Tr
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:g ~ 5.0 Timing Waveforms (Continue
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= r--------------------------------
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co r-------------------------------
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10.0 Functional Description 10.1 PR
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10.0 Functional Description (Contin
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Section 5 Modems
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~National ~ Semiconductor MM74HC942
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AC Electrical Characteristics Unles
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Functional Description (Continued)
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~National ~ Semiconductor MM74HC943
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AC Electrical Characteristics Unles
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Applications Information (Continued
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Absolute Maximum Ratings If Militar
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Electrical Characteristics Unless o
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Functional Description Figure 1 is
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'?'A National ~ Semiconductor ,..,A
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Electrical Characteristics unless o
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Pin Descriptions (Continued) Pin No
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Control Considerations (Continued)
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TABLE I. Operating and Test Modes D
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DAA: A Hybrid Design Program for th
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10 REM •••••••••
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1210 'GO,BO SUBROUTINE 1220 R1#=GN#
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.----------------------------------
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.----------------------------------
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,----------------------------------
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Fc Kt Kr meanGdb 7500 0.750 -22.87
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Section 6 Contents Transmission Lin
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Differential Data Transmission (Con
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~National ~ Semiconductor DS14C88/D
Page 577 and 578:
~National ~ Semiconductor DS26LS31
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~National ~ Semiconductor DS26LS32C
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~National ~ Semiconductor OS3486 Qu
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co CJ) (D (f) tJ) Q - CJ) """ (D (f
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.... in ~ ~Nat1onal c ~ Semiconduct
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o r--------------------------------
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~National ~ Semiconductor DS8921/DS
Page 595 and 596:
~National ~ Semiconductor DS8924 Qu
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..... .,... II) co en « :::l.. ...
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~National ~ Semiconductor DS9636A/,
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co r-------------------------------
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C") .., ~ ~National .., ~ ~ Semicon
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Section 7 Contents Physical Dimensi
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~ o "iii i E is 1j £ a. 0.985 t'+'
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II) c o 'iii c Q) E C «i u 'iii .c
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III c::: o "en c::: CI) E is (ij u
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NOTES
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NOTES
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INTUITIVE IC OP AMPS-1984 Thomas M.
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NOTES
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NATIONAL SEMICONDUCTOR CORPORATION
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NATIONAL SEMICONDUCTOR CORPORATION
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