HD74HC147 Datasheet, PDF (2/6 Pages) Hitachi Semiconductor – 10-to-4-line Priority Encoder

HD74HC147
Pin Arrangement
41
52
Inputs
63
74
85
C6
Outputs
B7
GND 8
4
5
6
D
7
3
8
2
C
1
BA9
(Top view)
16 V_CC
15 NC
14 D Output
13 3
12 2
11 1
Inputs
10 9
9 A Output
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply voltage range
VCC
–0.5 to +7.0
V
Input voltage
VIN
–0.5 to VCC + 0.5
V
Output voltage
Output current
DC current drain per VCC, GND
DC input diode current
DC output diode current
VOUT
IOUT
ICC, IGND
IIK
IOK
–0.5 to VCC + 0.5
V
±25
mA
±50
mA
±20
mA
±20
mA
Power dissipation per package
PT
Storage temperature
Tstg
500
mW
–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 11, 2005 page 2 of 5