DM74LS193 Synchronous 4-Bit Binary Counter with Du.
Fairchild Semiconductor
74193 - Synchronous 4-Bit Binary Counter
DM74LS193 Synchronous 4-Bit Binary Counter with Dual Clock September 1986 Revised March 2000 DM74LS193 Synchronous 4-Bit Binary Counter with Dual Cl.
Texas Instruments
SN74193 - SYNCHRONOUS 4-BIT UP/DOWN COUNTERS
SN54192, SN54193, SN54LS192, SN54LS193, SN74192, SN74193, SN74LS192, SN74LS193 SYNCHRONOUS 4-BIT UP/DOWN COUNTERS (DUAL CLOCK WITH CLEAR) SDLS074 − DE.