Datasheet > HEF4017BT

HEF4017BT

更新时间： 2024-11-21 11:12:39

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安世 - NEXPERIA		光电二极管输出元件逻辑集成电路触发器
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描述
5-stage Johnson decade counterProduction

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HEF4017BT 数据手册

HEF4017B

5-stage Johnson decade counter

Rev. 9 — 8 April 2016

Product data sheet

1. General description

The HEF4017B is a 5-stage Johnson decade counter with ten spike-free decoded active

HIGH outputs (Q0 to Q9), an active LOW carry output from the most significant flip-flop

(Q5-9), active HIGH and active LOW clock inputs (CP0, CP1) and an overriding

asynchronous master reset input (MR).

The counter is advanced by either a LOW-to-HIGH transition at CP0 while CP1 is LOW or

a HIGH-to-LOW transition at CP1 while CP0 is HIGH (see Table 3).

When cascading counters, the Q5-9 output, which is LOW while the counter is in states 5,

6, 7, 8, and 9, can be used to drive the CP0 input of the next counter. A HIGH on MR

resets the counter to zero (Q0 = Q5-9 = HIGH; Q1 to Q9 = LOW) independent of the clock

inputs (CP0, CP1).

Automatic counter code correction is provided by an internal circuit: following any illegal

code the counter returns to a proper counting mode within 11 clock pulses.

Schmitt trigger action makes the clock inputs highly tolerant of slower rise and fall times.

It operates over a recommended V_DDpower supply range of 3 V to 15 V referenced to V_SS

(usually ground). Unused inputs must be connected to V_DD, V_SS, or another input.

2. Features and benefits

 Automatic counter correction

 Tolerant of slow clock rise and fall times

 Fully static operation

 5 V, 10 V, and 15 V parametric ratings

 Standardized symmetrical output characteristics

 Specified from 40 C to +125 C

 Complies with JEDEC standard JESD 13-B

3. Ordering information

Table 1.

Ordering information

All types operate from 40 C to +125 C

Type number Package

Name

Description

Version

HEF4017BT

SO16

plastic small outline package; 16 leads; body width 3.9 mm

SOT109-1

12 3 4 5 6 7...18

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