54LS190 - SYNCHRONOUS UP/DOWN COUNTERS
(Texas Instruments)
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMB.
54LS190 - PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
(Motorola)
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
The SN54 / 74LS190 is a synchronous UP/ DOWN BCD Decade (8421) Count.
54LS190 - Synchronous 4-Bit Up/Down Counters
(National Semiconductor)
DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchronous 4-Bit Up Down Counters with Mode Control
May 1989
DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchr.
54LS191 - PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
(Motorola)
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS
The SN54 / 74LS190 is a synchronous UP/ DOWN BCD Decade (8421) Count.
54LS191 - SYNCHRONOUS UP/DOWN COUNTERS
(Texas Instruments)
SN54190, SN54191, SN54LS190, SN54LS191,
SN74190, SN74191, SN74LS190, SN74LS191 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SDLS072 – DECEMB.
54LS193 - PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
(Motorola)
PRESETTABLE BCD/DECADE UP/DOWN COUNTER
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
The SN54/74LS192 is an UP/DOWN BCD Decade (8421) Counter and the SN54/.