LM78 National Semiconductor, LM78 Datasheet - Page 4

• Manufacturer Part Number: LM78
• Description: Microprocessor System Hardware Monitor
• Manufacturer: National Semiconductor

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A2–A0
CS
TOTAL PINS
Pin Descriptions
Name(s)
Pin
Number
41–43
Pin
44
Number
of Pins
(Continued)
44
3
1
Digital Input
Digital Input
Type
The three lowest order bits of the 16-bit ISA Address Bus. A0
corresponds to the lowest order bit.
Chip Select input from an external decoder which decodes high order
address bits on the ISA Address Bus. This is an active low input.
4
Description