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CD54HCT4020

更新时间： 2024-11-28 22:03:11
品牌 Logo 应用领域
德州仪器 - TI 计数器
页数 文件大小 规格书
11页 264K
描述
High-Speed CMOS Logic 14-Stage Binary Counter

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CD54HCT4020 数据手册

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CD54HC4020, CD74HC4020,  
CD54HCT4020, CD74HCT4020  
Data sheet acquired from Harris Semiconductor  
SCHS201C  
High-Speed CMOS Logic  
14-Stage Binary Counter  
February 1998 - Revised October 2003  
Features  
Description  
• Fully Static Operation  
• Buffered Inputs  
The ’HC4020 and ’HCT4020 are 14-stage ripple-carry  
binary counters. All counter stages are master-slave flip-  
flops. The state of the stage advances one count on the  
negative clock transition of each input pulse; a high voltage  
level on the MR line resets all counters to their zero state. All  
inputs and outputs are buffered.  
[ /Title  
(CD74  
HC402  
0,  
CD74  
HCT40  
20)  
/Sub-  
ject  
(High  
Speed  
CMOS  
• Common Reset  
• Negative Edge Clocking  
• Fanout (Over Temperature Range)  
Ordering Information  
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads  
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads  
TEMP. RANGE  
o
PART NUMBER  
CD54HC4020F3A  
CD54HCT4020F3A  
CD74HC4020E  
( C)  
PACKAGE  
16 Ld CERDIP  
16 Ld CERDIP  
16 Ld PDIP  
16 Ld SOIC  
16 Ld SOIC  
16 Ld SOIC  
16 Ld PDIP  
16 Ld SOIC  
16 Ld SOIC  
16 Ld SOIC  
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C  
• Balanced Propagation Delay and Transition Times  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
• Significant Power Reduction Compared to LSTTL  
Logic ICs  
• HC Types  
CD74HC4020M  
- 2V to 6V Operation  
CD74HC4020MT  
CD74HC4020M96  
CD74HCT4020E  
CD74HCT4020M  
CD74HCT4020MT  
CD74HCT4020M96  
- High Noise Immunity: N = 30%, N = 30% of V  
IL IH CC  
at V  
= 5V  
CC  
• HCT Types  
- 4.5V to 5.5V Operation  
- Direct LSTTL Input Logic Compatibility,  
V = 0.8V (Max), V = 2V (Min)  
IL IH  
- CMOS Input Compatibility, I ≤ 1µA at V , V  
OL OH  
l
NOTE: When ordering, use the entire part number. The suffix 96  
denotes tape and reel. The suffix T denotes a small-quantity reel  
of 250.  
Pinout  
CD54HC4020, CD54HCT4020  
(CERDIP)  
CD74HC4020, CD74HCT4020  
(PDIP, SOIC)  
TOP VIEW  
Q
Q
Q
1
2
3
4
5
6
7
8
16 V  
CC  
12  
13  
14  
15 Q  
14 Q  
13 Q  
12 Q  
11  
10  
8
Q6  
Q
Q
Q
5
7
4
9
11 MR  
10 CP  
9
Q ‘  
1
GND  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
Copyright © 2003, Texas Instruments Incorporated  
1
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