Texas Instruments

The ’HC154 and ’HCT154 are 4-to-16 line decoders/demultiplexers with two enable inputs, E1 and E2. A High on either enable input forces the output into the High state. The demultiplexing function is performed by using the four input lines, A0 to A3, to select the output lines Y0\ to Y15\,... Read More

The ’HC157, ’HCT157, ’HC158, and ’HCT158 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select input (S). The Enable input (E\) is active Low. When (E\) is High, all of the outputs in the 158, the inverting type, (1Y\-4Y\)... Read More

The ’HC161, ’HCT161, ’HC163, and ’HCT163 are presettable synchronous counters that feature look-ahead carry logic for use in high-speed counting applications. The ’HC161 and ’HCT161 are asynchronous reset decade and binary counters, respectively; the ’HC163 and ’HCT163 devices are decade and binary counters, respectively, that are reset synchronously with the... Read More

The ’HC164 and ’HCT164 are 8-bit, serial-in, parallel-out, shift registers with asynchronous reset. Data is shifted on the positive edge of Clock (CLK). A LOW on the RESET (CLR) pin resets the shift register and all outputs go to the LOW state regardless of the input conditions. Two Serial Data... Read More

High Speed CMOS Logic 8-Bit Parallel-In/Serial-Out Shift Register

High Speed CMOS Logic Quad D-Type Flip-Flops with 3-State Outputs

The ’HC174 and ’HCT174 are edge triggered flip-flops which utilize silicon gate CMOS circuitry to implement D-type flip-flops. They possess low power and speeds comparable to low power Schottky TTL circuits. The devices contain six master-slave flip-flops with a common clock and common reset. Data on the D input having... Read More

The ’HC175 and ’HCT175 are high speed Quad D-type Flip-Flops with individual D-inputs and Q, Q\ complementary outputs. The devices are fabricated using silicon gate CMOS technology. They have the low power consumption advantage of standard CMOS ICs and the ability to drive 10 LSTTL devices. Information at the D... Read More

The ’HC192, ’HC193 and ’HCT193 are asynchronously presettable BCD Decade and Binary Up/Down synchronous counters, respectively. Presetting the counter to the number on the preset data inputs (P0-P3) is accomplished by a LOW asynchronous parallel load input (PL)\. The counter is incremented on the low-to-high transition of the Clock-Up input... Read More

High Speed CMOS Logic Non-Inverting Octal-Bus Transceiver with 3-State Outputs

High Speed CMOS Logic 8-Input Multiplexer with 3-State Outputs

The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE\) is active LOW. When OE\ is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless... Read More

These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G)\ input is at a high logic level. To ensure the high-impedance state during power up or power down, G\... Read More

High Speed CMOS Logic 8-Bit Addressable Latch

High Speed CMOS Logic Octal D-Type Flip-Flops with Reset

The ’HC259 and ’HCT299 are 8-bit shift/storage registers with three-state bus interface capability. The register has four synchronous-operating modes controlled by the two select inputs as shown in the mode select (S0, S1) table. The mode select, the serial data (DS0, DS7) and the parallel data (I/O0– I/O7) respond only... Read More

This device contains one independent 8-input NAND gate. Each gate performs the Boolean function Y =A ● B ● C ● D ● E ● F ● G ● Hin positive logic. This device contains one independent 8-input NAND gate. Each gate performs the Boolean function Y =A ● B... Read More

This device contains four independent 2-input OR gates. Each gate performs the Boolean function Y = A + B in positive logic. This device contains four independent 2-input OR gates. Each gate performs the Boolean function Y = A + B in positive logic.

High Speed CMOS Logic Octal Transparent Latches with 3-State Output

High Speed CMOS Logic Octal Positive-Edge Triggered D-Type Flip-Flops with 3-State Output