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SN54LS191 View Datasheet(PDF) - Motorola => Freescale

Part Name
Description
View to exact match
SN54LS191
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
Motorola
Motorola => Freescale Motorola
SN54LS191 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
SN54/74LS190 • SN54/74LS191
DIRECTION
CONTROL
ENABLE
CLOCK
U/D
CE
CP
RC
U/D
CE
CP
RC
U/D
CE
CP
RC
Figure a. n-Stage Counter Using Ripple Clock
DIRECTION
CONTROL
ENABLE
U/D
CE
CP
RC
U/D
CE
CP
RC
U/D
CE
CP
RC
CLOCK
Figure b. Synchronous n-Stage Counter Using Ripple Carry / Borrow
DIRECTION
CONTROL
ENABLE
CLOCK
U/D
CE
CP
TC
U/D
CE
CP
TC
U/D
CE
CP
TC
Figure c. Synchronous n-Stage Counter with Parallel Gated Carry / Borrow
FAST AND LS TTL DATA
5-347

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