LS7166A, LS7166A-S, LS7166A-TS
24-Bit Multi-Mode Counter (20 Pins)
25 MHz Count Frequency
8-Bit I/O bus
24-Bit Comparator
Programmable Count Modes: Quadrature (x1, x2, x4); Non-Quadrature, Normal/Modulo-N; 24 Hour Clock; Non-Recycle, Binary; BCD
TTL and CMOS compatible
3V to 5。5V operation
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