MM74C42 BCD-to-Decimal Decoder
October 1987
Revised January 1999
MM74C42
BCD-to-Decimal Decoder
General Description
The MM74C42 one-of-ten decoder is a monolithic comple-
mentary MOS (CMOS) integrated circuit constructed with
N- and P-channel enhancement transistors. This decoder
produces a logical 鈥?鈥?at the output corresponding to a four
bit binary input from zero to nine, and a logical 鈥?鈥?at the
other outputs. For binary inputs from ten to fifteen all out-
puts are logical 鈥?鈥?
s
Low power: 50 nW (typ.)
s
Medium speed operation: 10 MHz (typ.) with 10V V
CC
Applications
鈥?Automotive
鈥?Data terminals
鈥?Instrumentation
鈥?Medical electronics
鈥?Alarm systems
Features
s
Supply voltage range:
3V to 15V
s
Tenth power TTL compatible: drive 2 LPTTL loads
s
High noise immunity: 0.45 V
CC
(typ.)
鈥?Industrial electronics
鈥?Remote metering
鈥?Computers
Ordering Code:
Order Number
MM74C42N
Package Number
N16E
Package Description
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Connection Diagram
Pin Assignments for DIP
Top View
漏 1999 Fairchild Semiconductor Corporation
DS005882.prf
www.fairchildsemi.com