CD4518B-MIL系列介绍资料

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CD4518B-MIL

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CMOS 双路 BCD 加法计数器

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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 single-unit operation the ENABLE input is maintained high and the counter advances on each positive-going transition of the CLOCK. The counters are cleared by high levels on their RESET lines.

The counter can be cascaded in the ripple mode by connecting Q4 to the enable input of the subsequent counter while the CLOCK input of the latter is held low.

The CD4518B and CD4520B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

Medium-speed operation -
6-MHz typical clock frequency at 10 V
Positive- or negative-edge triggering
Synchronous internal carry propagation
100% tested for quiescent current at 20 V
Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
Noise margin (over full package-temperature range):
- 1 V at V_DD = 5 V
- 2 V at V_DD = 10 V
- 2.5 V at V_DD = 15 V
5-V, 10-V, and 15-V parametric ratings
Standardized, symmetrical output characteristics
Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
Applications
- Multistage synchronous counting
- Multistage ripple counting
- Frequency dividers

Data sheet acquired from Harris Semiconductor.

Function	Counter
Bits (#)	4
Technology family	CD4000
Supply voltage (min) (V)	3
Supply voltage (max) (V)	18
Input type	Standard CMOS
Output type	Push-Pull
Features	Balanced outputs, Positive input clamp diode, Standard speed (tpd > 50ns)
Operating temperature range (°C)	-55 to 125
Rating	Military

CDIP (J)

135.3552 mm² 19.56 x 6.92

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CD4518B-MIL

CMOS 双路 BCD 加法计数器

4000-306-326