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參數(shù)資料
| 型號(hào)： | 935265470118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | AHCT/VHCT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT-403-1, TSSOP-16 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大小： | 89K |
| 代理商： | 935265470118 |
2000 Apr 03
6
Philips Semiconductors
Product specication
Quad 2-input multiplexer; 3-state
74AHC257;
74AHCT257
RECOMMENDED OPERATING CONDITIONS
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134); voltages are referenced to GND (ground = 0 V).
Notes
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. For SO packages: above 70
°C the value of PD derates linearly with 8 mW/K.
For TSSOP packages: above 60
°C the value of PD derates linearly with 5.5 mW/K.
SYMBOL
PARAMETER
CONDITIONS
74AHC
74AHCT
UNIT
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
VCC
DC supply voltage
2.0
5.0
5.5
4.5
5.0
5.5
V
VI
input voltage
0
5.5
0
5.5
V
VO
output voltage
0
VCC
0
VCC
V
Tamb
operating ambient temperature
see DC and AC
characteristics per
device
40
+25
+85
40
+25
+85
°C
40
+25
+125
40
+25
+125
°C
tr,tf
(
t/V)
input rise and fall time ratios
VCC = 3.3 ±0.3 V
100
ns/V
VCC =5 ±0.5 V
20
20
ns/V
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX. UNIT
VCC
DC supply voltage
0.5
+7.0
V
VI
input voltage
0.5
+7.0
V
IIK
DC input diode current
VI < 0.5 V; note 1
20
mA
IOK
DC output clamping diode
current
VO < 0.5 V or VO >VCC + 0.5 V; note 1
±20
mA
IO
DC output sink current
0.5V<VO <VCC + 0.5 V
±25
mA
ICC;IGND
DC VCC or GND current
±75
mA
Tstg
storage temperature
65
+150
°C
PD
power dissipation per package
for temperature range:
40 to +125 °C; note 2
500
mW
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