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SN54HC, SN74HC Series - High-Speed HCMOS Logic Gates:

Datasheet - SNx4HC14 - Hex Inverters with Schmitt-Trigger Inputs - Rev. L (2025-02)
Datasheet - SNx4HC32 - Quadruple 2-Input OR Gates - Rev. F (2021-04)
Datasheet - SNx4HC132 - Quadruple 2-Input NAND Gates with Schmitt-Trigger Inputs - Rev. H (2021-01)
Datasheet - SNx4HC393 - Dual 4-Bit Binary Counters - Rev. E (2024-12)
Datasheet - SNx4HC573A - Octal Transparent D-Type Latches With 3-State Outputs - Rev. G (2022-04)
Datasheet - SNx4HC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs - Rev. H (2022-05)
Datasheet - SNx4HC590 - 8-Bit Binary Counters With 3-State Output Registers - Rev. F (2003-09)
Datasheet - SNx4HC4040 - 12-Bit Asynchronous Binary Counters - Rev. E (2022-03)

Old datasheet:

Datasheet - SNx4HC14 - Hex Inverters with Schmitt-Trigger Inputs - Rev. E (2004-11)
Datasheet - SNx4HC32 - Quadruple 2-Input OR Gates - Rev. D (2003-08)
Datasheet - SNx4HC132 - Quadruple 2-Input NAND Gates with Schmitt-Trigger Inputs - Rev. F (2004-11)
Datasheet - SNx4HC393 - Dual 4-Bit Binary Counters - Rev. D (2003-07)
Datasheet - SNx4HC573A - Octal Transparent D-Type Latches With 3-State Outputs - Rev. E (2003-09)
Datasheet - SNx4HC574 - Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs - Rev. F (2003-08)
Datasheet - SNx4HC590 - 8-Bit Binary Counters With 3-State Output Registers - Rev. D (2001-03)
Datasheet - SNx4HC4040 - 12-Bit Asynchronous Binary Counters - Rev. D (2003-09)