MC74HC85 Freescale Semiconductor, Inc, MC74HC85 Datasheet

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MC74HC85

Manufacturer Part Number
MC74HC85
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
4-Bit Magnitude Comparator
High–Performance Silicon–Gate CMOS
is similar in function to the MM74C85 and L85, but has a different pinout. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
high voltage level on either the A > B out , A = B out , or A < B out output, leaving
the other two at a low voltage level. This device also has A > B in , A = B in , and
A < B in inputs, eliminating the need for external gates when cascading.
10/95
Motorola, Inc. 1995
The MC74HC85 is identical in pinout and function to the LS85. This device
This 4–Bit Magnitude Comparator compares two 4–bit nibbles and gives a
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2 to 6 V
Low Input Current: 1 A
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 248 FETs or 62 Equivalent Gates
CASCADING
INPUTS
INPUTS
DATA
A > B in
A = B in
A < B in
A0
A1
A2
A3
B0
B1
B2
B3
10
12
13
15
9
11
14
1
4
3
2
LOGIC DIAGRAM
PIN 16 = V CC
PIN 8 = GND
5
6
7
A > B out
A = B out
A < B out
COMPARISON
OUTPUTS
1
REV 6
16
16
1
A
A
A
A
A = B out
MC74HC85
u
t
A = B in
ORDERING INFORMATION
t
u
MC74HCXXN
MC74HCXXDT
1
GND
B out
B out
B in
B in
B3
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
PLASTIC PACKAGE
TSSOP PACKAGE
CASE 948F–01
CASE 648–08
16
15
14
13
12
10
11
9
DT SUFFIX
N SUFFIX
Plastic
TSSOP
V CC
A3
B2
A2
A1
B1
A0
B0

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MC74HC85 Summary of contents

Page 1

... SEMICONDUCTOR TECHNICAL DATA 4-Bit Magnitude Comparator High–Performance Silicon–Gate CMOS The MC74HC85 is identical in pinout and function to the LS85. This device is similar in function to the MM74C85 and L85, but has a different pinout. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This 4– ...

Page 2

... MC74HC85 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 3

... V CC GND t TLH 3 MC74HC85 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 4

... MC74HC85 INPUTS A0, A1, A2, A3 (Pins 10, 12, 13, 15) Data Nibble A Inputs. The data nibble present at these in- puts is compared to Data Nibble the most significant bit and A0 is the least significant bit. B0, B1, B2, B3 (Pins 9, 11, 14, 1) Data Nibble B Inputs. The data nibble present at these in- puts is compared to Data Nibble A ...

Page 5

... < > High–Speed CMOS Logic Data DL129 — Rev 6 EXPANDED LOGIC PROGRAM 5 MC74HC85 5 A > B out 7 A < B out out MOTOROLA ...

Page 6

... MC74HC85 GND V CC GND LEAST– SIGNIFICANT B0 4–BIT B1 NIBBLES A10 A11 MOST– SIGNIFICANT B8 4–BIT B9 NIBBLES B10 B11 MOTOROLA TYPICAL APPLICATION CASCADING COMPARATORS A > < HC85 A > Bout A > ...

Page 7

... 0.25 (0.010 DETAIL E H DETAIL MC74HC85 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS DIM MIN ...

Page 8

... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *MC74HC85/D* 8 MC74HC85/D High–Speed CMOS Logic Data DL129 — Rev 6 ...

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