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CD74HC85NSR96 PDF预览

CD74HC85NSR96

更新时间： 2024-11-23 23:41:23
品牌 Logo 应用领域
其他 - ETC 比较器
页数 文件大小 规格书
10页 39K
描述
MAGNITUDE COMPARATOR|HC-CMOS|SOP|16PIN|PLASTIC

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CD74HC85NSR96 数据手册

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CD54/74HC85,  
CD54/74HCT85  
Data sheet acquired from Harris Semiconductor  
SCHS136B  
High Speed CMOS Logic  
4-Bit Magnitude Comparator  
August 1997 - Revised March 2002  
These 4-bit devices compare two binary, BCD, or other  
monotonic codes and present the three possible magnitude  
results at the outputs (A > B, A < B, and A = B). The 4-bit  
input words are weighted (A0 to A3 and B0 to B3), where A3  
Features  
• Buffered Inputs and Outputs  
• Typical Propagation Delay: 13ns (Data to Output at  
o
[ /Title  
(CD74  
HC85,  
CD74  
HCT85  
)
and B are the most significant bits.  
3
V
= 5V, C = 15pF, T = 25 C  
L A  
CC  
The devices are expandable without external gating, in both  
serial and parallel fashion. The upper part of the truth table  
indicates operation using a single device or devices in a  
serially expanded application. The parallel expansion  
scheme is described by the last three entries in the truth  
table.  
• Serial or Parallel Expansion Without External Gating  
• Fanout (Over Temperature Range)  
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads  
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads  
o
o
/Sub-  
ject  
• Wide Operating Temperature Range . . . -55 C to 125 C  
• Balanced Propagation Delay and Transition Times  
Ordering Information  
(High  
Speed  
CMOS  
Logic  
4-Bit  
Magni-  
tude  
TEMP. RANGE  
o
• Significant Power Reduction Compared to LSTTL  
Logic ICs  
PART NUMBER  
CD54HC85F3A  
CD74HC85E  
( C)  
PACKAGE  
16 Ld CERDIP  
16 Ld PDIP  
16 Ld SOIC  
16 Ld SOP  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
• HC Types  
- 2V to 6V Operation  
- High Noise Immunity: N = 30%, N = 30%of V  
IL IH  
at  
CC  
CD74HC85M  
V
= 5V  
CC  
CD74HC85NSR  
CD54HCT85F3A  
CD74HCT85E  
CD74HCT85M  
NOTES:  
• HCT Types  
Com-  
para-  
- 4.5V to 5.5V Operation  
16 Ld CERDIP  
16 Ld PDIP  
16 Ld SOIC  
- 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
Description  
1. When ordering, use the entire part number. Add the suffix 96 to  
obtain the variant in the tape and reel.  
The ’HC85 and ’HCT85 are high speed magnitude  
comparators that use silicon-gate CMOS technology to  
achieve operating speeds similar to LSTTL with the low  
power consumption of standard CMOS integrated circuits.  
2. Die for this part number is available which meets all electrical  
specifications. Please contact your local TI sales office or cus-  
tomer service for ordering information.  
Pinout  
CD54HC85, CD54HCT85  
(CERDIP)  
CD74HC85  
(PDIP, SOIC, SOP)  
CD74HCT85  
(PDIP, SOIC)  
TOP VIEW  
B3  
(A < B) IN  
(A = B) IN  
(A > B) IN  
(A > B) OUT  
(A = B) OUT  
(A < B) OUT  
GND  
1
2
3
4
5
6
7
8
16 V  
CC  
15 A3  
14 B2  
13 A2  
12 A1  
11 B1  
10 A0  
9
B0  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
Copyright © 2002, Texas Instruments Incorporated  
1
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