Description
Count Inhibit
Count is inhibited regardless of other inputs.Regular Count Down count on the rising edge of CK
Synchronous Preset Input data is preset on the rising edge of CK
Asynchronous Preset Input data is asynchronously preset to CK
Clear
Counter is set to maximum count.X: Don’t care Maximum count: TC74HC40102A “99”, TC74HC40103A “255”
2
2014-03-01
Timing Chart
TC74HC40102,40103AP/AF
3
2014-03-01
System Diagram
TC74HC40102A
TC74HC40102,40103AP/AF
TC74HC40103A
4
2014-03-0.
Features
- High speed: fmax 40 MHz (typ. ) at VCC = 5 V.
- Low power dissipation: ICC = 4 μA (max) at Ta = 25°C.
- High noise immunity: VNIH = VNIL = 28% VCC (min).
- Output drive capability: 10 LSTTL loads.
- Symmetrical output impedance: |IOH| = IOL = 4 mA (min).
- Balanced propagation delays: tpLH ∼.
- tpHL.
- Wide operating voltage range: VCC (opr) = 2 to 6 V.
- Pin and function compatible with 40102B, 40103B
Weight DIP16-P-300-2.54A SOP1.
