零件编号
MM74C93
产品描述 (功能)
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Fairchild Semiconductor
General Descriptio
The MM74C93 binary counter and complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. The 4-bit binary counter can be reset to zero by applying high logic level on inputs R01 and R02, and a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, -8, or -16 divider. Counting occurs on the negative going edge of the input pulse.
All inputs are protected against static discharge damage.
FEATUREs
■ Wide supply voltage range: 3V to 15V
■ Guaranteed noise margin: 1V
■ High noise immunity: 0.45 VCC (typ.)
■ Low power compatibility: Fan out of 2 TTL driving 74L
■ The MM74C93 follows the MM74L93 Pinout