BUY 74HCT161N https://www.utsource.net/itm/p/326595.html
Presettable synchronous 4-bit binary counter; asynchronous reset - Description: Presettable Synchronous 4-Bit Binary Counter; Asynchronous Reset; TTL Enabled ; Fmax: 45 MHz; Logic switching levels: TTL ; Output drive capability: +/- 4 mA ; Power dissipation considerations: Low Power ; Propagation delay: 20 ns; Voltage: 4.5-5.5V
Description: The 74HCT161N is a high-speed CMOS 4-bit synchronous binary counter fabricated with silicon gate C2MOS technology.
Features:
High speed: tpd = 15 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
High noise immunity: VNIH = VNIL = 28% VCC (min)
Balanced propagation delays: tPLH tPHL
Symmetrical output impedance: |IOH| = IOL (max)
Wide operating voltage range: VCC (opr) = 2 to 6 V
Low input current: 1 μA (max)
Pin and function compatible with 74LS/ALS161
Applications:
Frequency division
Clock and reset pulse generation
Modulo-16 counter/divider
Frequency synthesizer
(For reference only)