MM74C192 鈥?MM74C193 Synchronous 4-Bit Up/Down Decade Counter 鈥?Synchronous 4-Bit Up/Down Binary
Synchronous 4-Bit Up/Down Decade Counter 鈥?/div>
Synchronous 4-Bit Up/Down Binary Counter
General Description
The MM74C192 and MM74C193 up/down counters are
monolithic complementary MOS (CMOS) integrated cir-
cuits. The MM74C192 is a BCD counter, while the
MM74C193 is a binary counter.
Counting up and counting down is performed by two count
inputs, one being held high while the other is clocked. The
outputs change on the positive-going transition of this
clock.
These counters feature preset inputs that are set when
load is a logical 鈥?鈥?and a clear which forces all outputs to
鈥?鈥?when it is at a logical 鈥?鈥? The counters also have carry
and borrow outputs so that they can be cascaded using no
external circuitry.
Features
s
High noise margin:
1V guaranteed
Drive 2 LPTTL loads
s
Tenth power TTL compatible:
s
Wide supply range: 3V to 15V
s
Carry and borrow outputs for N-bit cascading
s
Asynchronous clear
s
High noise immunity: 0.45 V
CC
(typ.)
Ordering Code:
Order Number
MM74C192N
MM74C193M
MM74C193N
Package Number
N16E
M16A
N16E
Package Description
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150鈥?Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Top View
漏 1999 Fairchild Semiconductor Corporation
DS005901
www.fairchildsemi.com