[Silicon Supplies]

Description
The 74HCT163 programmable synchronous 4-bit decade and binary counter is fabricated using a 2.5µm 5V CMOS process with the same high speed performance of LSTTL combined with CMOS low power consumption. Clock input is active on the rising edge. Both load (SPE) and clear (MR) inputs are active low. Presetting is synchronous on rising clock edge. Two enable inputs (TE and PE) and ripple carry output (TC) are provided to enable easy cascading of counters, facilitating simple implementation of N-bit counters without use of external gates. Device inputs directly accept LSTTL or CMOS. All inputs are protected against ESD and excess voltage transients.

FEATUREs:
◾ Output Drive Capability: 10 LSTTL Loads
◾ Low Input Current: 1µA
◾ TTL / CMOS compatible Input Levels
◾ Outputs directly interface CMOS, NMOS and TTL
◾ Operating Voltage Range: 4.5V to 5.5V
◾ Function compatible with 74LS163.