Datasheet > HD74HC93P

HD74HC93P

更新时间： 2024-01-22 07:34:46

品牌	Logo	应用领域
日立 - HITACHI		光电二极管逻辑集成电路触发器
页数	文件大小	规格书
11页	53K
描述
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, CMOS, PDIP14, DP-14

阅读下载

中文翻译

获取价格

如果您发现信息不准确，欢迎纠错

HD74HC93P 数据手册

HD74HC93

4-bit Binary Counter

Description

The HD74HC93 is a 4-bit ripple type counter consisting of four master/slave flip-flops that are internally

connected to provide separate divide-by-two and divide-by-eight sections. Each section has a separate

clock input which initiates state changes of the counter on the high-to-low clock transition. State changes

of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output

signals are subject to decoding spikes and should not be used as clocks or as strobes except when gated

with the clock of the HD74HC93. Q_Ais the output of the divide-by-two section; Q_B, Q_C, and Q_Dare the

binary outputs of the divide-by-eight section.

A gated AND asynchronous reset is provided which resets all the flip-flops.

Because the output from the divide-by-two section is not internally connected to the succeeding stages, the

devices may be operated in various counting modes:

1. A 4-bit rippl counter – The Q_Aoutput must be externally connected to the clock B input. The input

count pulses are applied to the clock A inputl. Simultaneous divisions of 2, 4, 8 and 16 are performed at

the Q_A, Q_B, Q_Cand Q_Doutputs.

2. A 3-bit ripple counter – The input count pulses are applied to the clock B input. Simultaneous

frequency divisions of 2, 4 and 8 are available at the Q_B, Q_Cand Q_Doutputs. Independent use of the

first flip-flop is available if the reset function coincides with reset of the 3-bit ripple-through counter.

Features

•

High Speed Operation: t_pd(A to Q_A) = 13 ns typ (C_L= 50 pF)

High Output Current: Fanout of 10 LSTTL Loads

Wide Operating Voltage: V_CC= 2 to 6 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I_CC(static) = 4 µA max (Ta = 25°C)

12 3 4 5 6 7...11

中文翻译

下载PDF

型号	品牌	获取价格	描述	数据表
HD74HC93P-E	RENESAS	获取价格	HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDIP14, DP-14
HD74HC93RP	HITACHI	获取价格	Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction,
HD74HC93RPEL	RENESAS	获取价格	4-bit Binary Counter
HD74HC93RP-EL	HITACHI	获取价格	Binary Counter, PDSO14, FP-14DN
HD74HC93RP-EL	RENESAS	获取价格	HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDSO14, FP-14DN
HD74HC93T	HITACHI	获取价格	Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction,
HD74HC93T-EL	HITACHI	获取价格	暂无描述
HD74HC95	HITACHI	获取价格	4-bit Parallel Access Shift Register
HD74HC95	RENESAS	获取价格	8-bit Shift Register
HD74HC95FP	HITACHI	获取价格	Parallel In Parallel Out, HC/UH Series, 4-Bit, Right Direction, True Output, CMOS, PDSO14,