ti
部件型号 厂商 描述

SN74LS697NSRG4

Texas Instruments Counter ICs Sync 4B Up Down Binary Counters

SN74LS590DR

Texas Instruments Counter ICs 8-Bit Binary w/Input Rgstr & 3-St Output

SN74LS592DRE4

Texas Instruments Counter ICs 8-Bit Bin Counter Input Register

SN74LS293DR

Texas Instruments Counter Shift Registers 4-BIT BINARY COUNTERS

SN74LS169BNSR

Texas Instruments Counter ICs Synch 4-Bit Up/Down Binary Counter

SN74LS592DRG4

Texas Instruments Counter ICs 8B Binary Counters

SN74LS590DRG4

Texas Instruments Counter ICs 8B Binary Counters
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