Voltage References

MOTOROLA
- SEMICONDUCTOR-----­
TECHNICAL DATA
QUAD SINGLE-ENDED LINE DRIVER
The MC3481 and MC3485 are quad single-ended line drivers
specifically designed to meet the IBM 360/370 I/O specification
(GA22-6974-3).
Output levels are guaranteed over the full range of output load
and fault conditions. Compliance with the IBM requirements for
fault protection. flagging. and power up/power down protection for
the bus make this an ideal line driver for party line operations.
• Separate Enable and Fault Flags - MC3481
• Common Enable and Fault Flag - MC34B5
• Power Up/Down Does Not Disturb Bus
• Schottky Circuitry for High-Speed - PNP Inputs
• Internal Bootstraps for Faster Rise Times
• Driver Output Current Foldback Protection
• MC3485 has LS Totem Pole Driver Output
MC3481
DUAL ENABLE
tNDIVIDUAL FAULT FLAG
Driver Output A Vee Driver Output A
Fault Flag A
Input A
Enable AS
Input B
Driver Output B
1/4 MC3481 or
1/4 MC3485
r------,
I I
I
I
I I
L ______ j
Driver Ou tput 0 Driver Output A
Fault Flag 0 Input A
Input 0 Enable ABeD
Enable CD
Input B
Input C Driver Output B
Driver Output C
Driver Output B
TYPICAL APPLICATION
Coaxial
Cable
_
16 .
1
MC3481
MC3485
IBM 360/370
QUAD LINE DRIVER
SILICON MONOLITHIC
INTEGRATED CIRCUIT
-.f l ·
r ' ;
P SUFFIX
PLASTIC PACKAGE
CASE 648
MC3485
COMMON ENABLE
COMMON FAULT FLAG
MOTOROLA LINEAR/INTERFACE ICs DEVICE DATA
7-134
r---"
I I
I
I
L SUFFIX
CERAMIC PACKAGE
CASE 620
Vee
Oriver Output 0
Driver Output 0
Input 0
Fault Flag
(Open Collector)
Input C
Driver Output C
Driver Output C