74HC/HCT160 is a high-performance Si-gate CMOS device that is pin compatible with low power Schottky TTL (LSTTL) and can be used for high-speed counting.
The Philips 74HC/HCT160 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). It functions as a synchronous presettable decade counter featuring an internal look-ahead carry and can be used for high-speed counting applications.
The device supports synchronous counting and loading, with two count enable inputs for n-bit cascading. It includes a positive-edge triggered clock and an asynchronous reset. The outputs can be preset to a specific value, and the terminal count output (TC) is enabled when the CET input is HIGH and the counter is at terminal count.
| Device Type | Presettable synchronous BCD decade counter; asynchronous reset |
|---|---|
| Technology | high-speed Si-gate CMOS |
| TTL Compatibility | low power Schottky TTL (LSTTL) |
| Output Capability | standard |
| IC Category | MSI |
A LOW level at the master reset input sets all four outputs of the flip-flops to LOW level regardless of the levels at other inputs.
The TC output produces a HIGH output pulse when the CET input is HIGH and the counter is at terminal count (HLLH).
Both count enable inputs (CEP and CET) must be HIGH to count.