CMOS Dual Up-Counters

Features: Medium-speed operation — 6-MHz typical clock frequency st 10 V, = Positive- or negative-edge triggering m Synchronous internal carry propagation . 100% tested for quiescent current at 20 V & Maximum input current of 1 uA at 18 V ‘over full package-temperature range; 100 nAat

CMOS 双路二进制加法计数器

CD4518 Dual BCD Up-Counter and CD4520 Dual Binary Up-Counter each consist of two identical, internally synchronous 4-stage counters. The counter stages are D-type flip-flops having interchangeable CLOCK and ENABLE lines for incrementing on either the positive-going or negative-going transition. For • Medium-speed operation -    6-MHz typical clock frequency at 10 V\n• Synchronous internal carry propagation\n• Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C\n• 1 V at VDD = 5 V\n• 2.5 V at VDD = 15 V\n• 5-V, 10-V, and 15-V parametric ratings\n• ;

Cmos Dual Up-Counters

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Dual binary counter

DESCRIPTION The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0to O3) and an active HIGH overriding asynchronous master reset input (MR). The cou

Dual binary counter

DESCRIPTION The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0to O3) and an active HIGH overriding asynchronous master reset input (MR). The cou

Dual binary counter

DESCRIPTION The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0to O3) and an active HIGH overriding asynchronous master reset input (MR). The cou

Dual binary counter

DESCRIPTION The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0to O3) and an active HIGH overriding asynchronous master reset input (MR). The cou

Dual binary counter

DESCRIPTION The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (CP0) and an active LOW clock input (CP1), buffered outputs from all four bit positions (O0to O3) and an active HIGH overriding asynchronous master reset input (MR). The cou