74ac169scx-nl Fairchild Semiconductor, 74ac169scx-nl Datasheet
74ac169scx-nl
Manufacturer Part Number
74ac169scx-nl
Description
74ac169 4-stage Synchronous Bidirectional Counter
Manufacturer
Fairchild Semiconductor
Datasheet
1.74AC169SCX-NL.pdf
(8 pages)
© 1999 Fairchild Semiconductor Corporation
74AC169
4-Stage Synchronous Bidirectional Counter
General Description
The AC169 is fully synchronous 4-stage up/down counter.
The AC169 is a modulo-16 binary counter. It features a
preset capability for programmable operation, carry looka-
head for easy cascading and a U/D input to control the
direction of counting. All state changes, whether in count-
ing or parallel loading, are initiated by the LOW-to-HIGH
transition of the Clock.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
FACT
Order Number
74AC169SC
74AC169SJ
74AC169MTC
74AC169PC
is a trademark of Fairchild Semiconductor Corporation.
Package Number
MTC16
IEEE/IEC
M16A
M16D
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
DS009934
Features
Connection Diagram
Pin Descriptions
I
Synchronous counting and loading
Built-In lookahead carry capability
Presettable for programmable operation
Outputs source/sink 24 mA
CC
CEP
CET
CP
P
PE
U/D
Q
TC
reduced by 50%
Pin Names
Package Description
0
0
–P
–Q
3
3
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
Parallel Data Inputs
Parallel Enable Input
Up-Down Count Control Input
Flip-Flop Outputs
Terminal Count Output
November 1988
Revised November 1999
Description
www.fairchildsemi.com
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