HD74HC85 Datasheet, PDF (3/8 Pages) Hitachi Semiconductor – 4-Bit Magnitude Comparator

HD74HC85
Logic Diagram
B3
A3
B2
A2
A>Bout
B1
A1
A<Bout
B0
A0
A<Bin
A=Bin
A>Bin
A=Bout
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage range
VCC
–0.5 to 7.0
V
Input / Output voltage
Vin, Vout
–0.5 to VCC +0.5
V
Input / Output diode current
IIK, IOK
±20
mA
Output current
IO
±25
mA
VCC, GND current
ICC or IGND
±50
mA
Power dissipation
PT
500
mW
Storage temperature
Tstg
–65 to +150
°C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Recommended Operating Conditions
Item
Symbol
Ratings
Supply voltage
VCC
2 to 6
Input / Output voltage
VIN, VOUT
0 to VCC
Operating temperature
Ta
–40 to 85
Input rise / fall time^*1
0 to 1000
tr, tf
0 to 500
0 to 400
Note: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Unit
V
V
°C
ns
Conditions
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
Rev.2.00, Oct 06, 2005 page 3 of 7