Atmel AT89C51ID2 Data Sheet - Keil

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144 AT89C51ID2 Table 99. AC Parameters for a Variable Clock Symbol Type Standard Clock X2 Clock X parameter for -M range X parameter for -L range Units T LHLL Min 2 T - x T - x 15 15 ns T AVLL Min T - x 0.5 T - x 20 20 ns T LLAX Min T - x 0.5 T - x 20 20 ns T LLIV Max 4 T - x 2 T - x 35 35 ns T LLPL Min T - x 0.5 T - x 15 15 ns T PLPH Min 3 T - x 1.5 T - x 25 25 ns T PLIV Max 3 T - x 1.5 T - x 45 45 ns T PXIX Min x x 0 0 ns T PXIZ Max T - x 0.5 T - x 15 15 ns T AVIV Max 5 T - x 2.5 T - x 45 45 ns T PLAZ Max x x 10 10 ns 4289A–8051–09/03
External Program Memory Read Cycle External Data Memory Characteristics Table 100. Symbol Description 4289A–8051–09/03 ALE PSEN PORT 0 PORT 2 T PLIV TPLAZ INSTR IN A0-A7 INSTR IN A0-A7 INSTR IN ADDRESS OR SFR-P2 T LHLL TLLAX TAVLL T AVIV T LLIV T LLPL T PLPH ADDRESS A8-A15 Symbol Parameter T RLRH T WLWH T RLDV T RHDX T RHDZ T LLDV T AVDV T LLWL T AVWL T QVWX T QVWH T WHQX T RLAZ T WHLH T PXIX RD Pulse Width WR Pulse Width RD to Valid Data In Data Hold After RD Data Float After RD 12 T CLCL ALE to Valid Data In Address to Valid Data In ALE to WR or RD Address to WR or RD Data Valid to WR Transition Data Set-up to WR High Data Hold After WR RD Low to Address Float RD or WR High to ALE high T PXIZ T PXAV ADDRESS A8-A15 AT89C51ID2 145
Page 1 and 2:
Features 80C52 Compatible - 8051 In
Page 3 and 4:
Block Diagram Figure 1. Block Diagr
Page 5 and 6:
Table 2. C51 Core SFRs 4289A-8051-0
Page 7 and 8:
Table 8. PCA SFRs 4289A-8051-09/03
Page 9 and 10:
Table 13. SFR Mapping F8h F0h E8h E
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11 AT89C51ID2 4289A-8051-09/03 50 4
Page 13 and 14:
Table 14. Pin Description (Continue
Page 15 and 16:
Oscillators 4289A-8051-09/03 AT89C5
Page 17 and 18:
4289A-8051-09/03 Table 18. PCON Reg
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4289A-8051-09/03 AT89C51ID2 It is a
Page 21 and 22:
4289A-8051-09/03 - FCLK CPU and FCL
Page 23 and 24:
Figure 5. Mode Switching Waveforms
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4289A-8051-09/03 Table 21. CKCON1 R
Page 27 and 28:
4289A-8051-09/03 Table 22. AUXR1 re
Page 29 and 30:
Expanded RAM (XRAM) Figure 7. Inter
Page 31 and 32:
Registers Table 23. AUXR Register A
Page 33 and 34:
Reset Output 4289A-8051-09/03 AT89C
Page 35 and 36:
Figure 12. Power Fail Detect Vcc 42
Page 37 and 38:
Programmable Clock- Output 4289A-80
Page 39 and 40:
Registers Table 24. T2CON Register
Page 41 and 42:
Programmable Counter Array PCA 4289
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4289A-8051-09/03 Table 26. CMOD Reg
Page 45 and 46:
Figure 16. PCA Interrupt System 428
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4289A-8051-09/03 Table 29. PCA Modu
Page 49 and 50:
4289A-8051-09/03 AT89C51ID2 PCA Cap
Page 51 and 52:
Figure 19. PCA High Speed Output Mo
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4289A-8051-09/03 AT89C51ID2 Serial
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4289A-8051-09/03 AT89C51ID2 The SAD
Page 57 and 58:
Internal Baud Rate Generator (BRG)
Page 59 and 60:
UART Registers Table 40. SADEN Regi
Page 61 and 62:
4289A-8051-09/03 Table 44. T2CON Re
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4289A-8051-09/03 Table 46. BDRCON R
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4289A-8051-09/03 AT89C51ID2 Registe
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4289A-8051-09/03 Table 49. IPL0 Reg
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4289A-8051-09/03 Table 51. IEN1 Reg
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4289A-8051-09/03 Table 54. IPH1 Reg
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Power Management 4289A-8051-09/03 A
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4289A-8051-09/03 AT89C51ID2 pins, t
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AT89C51ID2 Keyboard Interface The A
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4289A-8051-09/03 Table 59. KBE Regi
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4289A-8051-09/03 AT89C51ID2 2-wire
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4289A-8051-09/03 AT89C51ID2 Descrip
Page 85 and 86:
4289A-8051-09/03 AT89C51ID2 When th
Page 87 and 88:
Figure 33. Format and State in the
Page 89 and 90:
Page 91 and 92:
Page 93 and 94: Table 67. Status in Slave Receiver
Page 95 and 96: Table 68. Status in Slave Transmitt
Page 97 and 98: 4289A-8051-09/03 Bit Number 1 SD1 A
Page 99 and 100: Serial Port Interface (SPI) 4289A-8
Page 101 and 102: Functional Description Figure 38 sh
Page 103 and 104: Figure 40. Data Transmission Format
Page 105 and 106: 4289A-8051-09/03 Figure 43. SPI Int
Page 107 and 108: Serial Peripheral DATa register (SP
Page 109 and 110: WDT During Power Down and Idle 4289
Page 111 and 112: 4289A-8051-09/03 AT89C51ID2 Power-o
Page 113 and 114: 4289A-8051-09/03 Figure 44. Recomme
Page 115 and 116: Registers Table 85. EECON Register
Page 117 and 118: 4289A-8051-09/03 AT89C51ID2 Flash M
Page 119 and 120: 4289A-8051-09/03 Table 88. Program
Page 121 and 122: 4289A-8051-09/03 Table 92. Program
Page 123 and 124: Functional Description Figure 48. B
Page 125 and 126: Boot Process Figure 49. Bootloader
Page 127 and 128: Functional Description 4289A-8051-0
Page 129 and 130: Flow Description 4289A-8051-09/03 A
Page 131 and 132: Write / Program Commands This flow
Page 133 and 134: Display Data Description Figure 55.
Page 135 and 136: Example 4289A-8051-09/03 Read funct
Page 137 and 138: 4289A-8051-09/03 Table 95. ISP Comm
Page 139 and 140: Table 96. API Call Summary (Continu
Page 141 and 142: T A = -40°C to +85°C; V SS = 0V;
Page 143: External Program Memory Characteris
Page 147 and 148: External Data Memory Write Cycle 42
Page 149 and 150: AC Testing Input/Output Waveforms F
Page 151 and 152: Ordering Information 4289A-8051-09/
Page 153 and 154: VQFP44 4289A-8051-09/03 AT89C51ID2
Page 155 and 156: PLCC68 4289A-8051-09/03 AT89C51ID2
Page 157 and 158: 4289A-8051-09/03 AT89C51ID2 Pulse W
Page 159: Atmel Corporation Atmel Operations
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Atmel AT89C51ID2 Data Sheet - Keil

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