M54/M74HC192 is a synchronous up/down binary counter, M54/M74HC193 is a synchronous up/down decade counter, with high speed, low power consumption, high noise immunity, strong output drive capability, symmetrical output impedance, balanced propagation delay, wide operating voltage range, etc.
This document is a datasheet for the M54/M74HC192 and M54/M74HC193 synchronous up/down decade and binary counters manufactured by SGS-THOMSON Microelectronics. These devices are fabricated in silicon gate CMOS technology, offering high-speed performance comparable to LSTTL with low power consumption.
| Maximum Clock Frequency | 54 MHz (Typ.) at Voc = 5 V |
|---|---|
| Operating Voltage Range | 2 V to 6 V |
| Supply Voltage | -0.5 to +7 V |
| Operating Temperature (M54HC) | -55 to +125 °C |
| Operating Temperature (M74HC) | -40 to +85 °C |
| Power Dissipation | 500 mW |
When the LOAD input is taken low, the data is loaded independently of either clock input.
All 4 internal stages are set to low independently of either COUNT input.