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CD74HC85NSR96 Datasheet

Download or read online TI (Texas Instruments) CD74HC85NSR96 HC/UH SERIES, 4-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, PDSO16 pdf datasheet.



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Data sheet acquired from Harris Semiconductor
SCHS136B
August 1997 - Revised March 2002
Features
• Buffered Inputs and Outputs
• Typical Propagation Delay: 13ns (Data to Output at
o
V
= 5V, C
= 15pF, T
= 25
C
CC
L
A
• Serial or Parallel Expansion Without External Gating
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N
= 30%, N
IL
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
l
Description
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.
Pinout
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
©
Copyright
2002, Texas Instruments Incorporated
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
and B
are the most significant bits.
3
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.
o
o
C to 125
C
Ordering Information
PART NUMBER
CD54HC85F3A
CD74HC85E
= 30%of V
at
IH
CC
CD74HC85M
CD74HC85NSR
CD54HCT85F3A
CD74HCT85E
1 A at V
, V
CD74HCT85M
OL
OH
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
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.
CD54HC85, CD54HCT85
(CERDIP)
CD74HC85
(PDIP, SOIC, SOP)
CD74HCT85
(PDIP, SOIC)
TOP VIEW
B3
1
16
V
CC
(A < B) IN
2
15
A3
(A = B) IN
3
14
B2
(A > B) IN
4
13
A2
(A > B) OUT
5
12
A1
(A = B) OUT
6
11
B1
10
A0
(A < B) OUT
7
9
B0
GND
8
1
CD54/74HC85,
CD54/74HCT85
High Speed CMOS Logic
4-Bit Magnitude Comparator
TEMP. RANGE
o
(
C)
PACKAGE
-55 to 125
16 Ld CERDIP
-55 to 125
16 Ld PDIP
-55 to 125
16 Ld SOIC
-55 to 125
16 Ld SOP
-55 to 125
16 Ld CERDIP
-55 to 125
16 Ld PDIP
-55 to 125
16 Ld SOIC
Specifications of TI (Texas Instruments) CD74HC85NSR96
Mfr Package Description:
SOP-16
Technology:
CMOS
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE
Surface Mount:
Yes
Terminal Form:
GULL WING
Terminal Position:
DUAL
Number of Functions:
1
Number of Terminals:
16
Package Body Material:
PLASTIC/EPOXY
Temperature Grade:
MILITARY
Operating Temperature-Max:
125 Cel
Operating Temperature-Min:
-55 Cel
Supply Voltage-Max (Vsup):
6 V
Supply Voltage-Min (Vsup):
2 V
Supply Voltage-Nom (Vsup):
4.5 V
Logic IC Type:
MAGNITUDE COMPARATOR
Number of Bits:
4
Output Polarity:
TRUE
Propagation Delay (tpd):
295 ns

Summary of Contents

Page 1

Data sheet acquired from Harris Semiconductor SCHS136B August 1997 - Revised March 2002 Features Buffered Inputs and Outputs Typical Propagation Delay: 13ns (Data to Output 5V 15pF ...

Page 2

Functional Diagram COMPARING INPUTS A3, B3 A2, B2 A1, B1 SINGLE DEVICE OR SERIES CASCADING A3 > < > < ...

Page 3

Absolute Maximum Ratings DC Supply Voltage -0. Input Diode Current, I ...

Page 4

DC Electrical Specifications (Continued) CONDITIONS PARAMETER SYMBOL V (V) I HCT TYPES High Level Input Voltage Low Level Input Voltage High Level Output Voltage CMOS Loads High Level ...

Page 5

Switching Specifications Input PARAMETER SYMBOL (A > B) IN, (A < PLH, PHL to (A > B) OUT, (A < B) OUT (A > ...

Page 6

Test Circuits and Waveforms LEAST SIGNIFICANT 4-BITS OF EACH WORD MOST SIGNIFICANT 4-BITS OF EACH WORD FIGURE 3. SERIES CASCADING - COMPARING 12-BIT WORDS CD54/74HC85, CD54/74HCT85 GND (A > GND (A < ...

Page 7

Test Circuits and Waveforms CD74HC85 GND B1 B3 CD74HCT85 < B) OUT OUT A1 (A > B) OUT B0 ...

Page 10

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...

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