74F779 查看數據表（PDF） - Philips Electronics
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74F779 Datasheet PDF : 12 Pages
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Philips Semiconductors
8-bit bidirectional binary counter (3-State)
Product specification
74F779
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
VCC
Supply voltage
VIN
Input voltage
IIN
Input current
VOUT
Voltage applied to output in High output state
TC
IOUT
Current applied to output in Low output state
I/On
Tamb
Tstg
Operating free-air temperature range
Storage temperature
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
MIN
VCC
Supply voltage
4.5
VIH
High-level input voltage
2.0
VIL
Low-level input voltage
IIK
Input clamp current
TC
IOH
High-level output current
I/On
TC
IOL
Low-level output current
I/On
Tamb
Operating free-air temperature range
0
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to VCC
40
48
0 to +70
–65 to +150
LIMITS
NOM
5.0
MAX
5.5
0.8
–18
–1
–3
20
24
70
UNIT
V
V
mA
V
mA
mA
°C
°C
UNIT
V
V
V
mA
mA
mA
mA
mA
°C
1989 Sep 20
5
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