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參數(shù)資料
| 型號： | SN74AVCH245 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器具有三態(tài)輸出 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 177K |
| 代理商： | SN74AVCH245 |
SN74AVCH245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES264C – APRIL 1999 – REVISED DECEMBER 1999
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
IOHS = –100
μ
A
IOHS = –2 mA,
IOHS = –4 mA,
IOHS = –8 mA,
IOHS = –12 mA,
IOLS = 100
μ
A
IOLS = 2 mA,
IOLS = 4 mA,
IOLS = 8 mA,
IOLS = 12 mA,
VI = VCC or GND
VI = 0.57 V
VI = 0.7 V
VI = 0.8 V
VI = 1.07 V
VI = 1.7 V
VI = 2 V
1.4 V to 3.6 V
VCC–0.2
1.05
VIH = 0.91 V
VIH = 1.07 V
VIH = 1.7 V
VIH = 2 V
1.4 V
VOH
1.65 V
1.2
V
2.3 V
1.75
3 V
2.3
1.4 V to 3.6 V
0.2
VIL = 0.49 V
VIL = 0.57 V
VIL = 0.7 V
VIL = 0.8 V
1.4 V
0.4
VOL
1.65 V
0.45
V
2.3 V
0.55
3 V
0.7
±
2.5
II
Control inputs
3.6 V
μ
A
1.65 V
25
IBHL
2.3 V
45
μ
A
3 V
75
1.65 V
–25
IBHH§
2.3 V
–45
μ
A
3 V
–75
1.95 V
200
IBHLO
VI = 0 to VCC
2.7 V
300
μ
A
3.6 V
500
1.95 V
–200
IBHHO#
VI = 0 to VCC
2.7 V
–300
μ
A
3.6 V
–500
Ioff
IOZ||
ICC
VI or VO = 3.6 V
VO = VCC or GND
VI = VCC or GND,
0
±
10
μ
A
μ
A
μ
A
3.6 V
±
12.5
IO = 0
3.6 V
40
Ci
Control inputs
VI= VCCor GND
VI = VCC or GND
2.5 V
pF
3.3 V
2.5 V
Cio
A or B ports
A or B orts
VO= VCCor GND
VO = VCC or GND
pF
3.3 V
Typical values are measured at TA = 25
°
C.
The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND and
then raising it to VIL max.
§The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to VCC and
then lowering it to VIH min.
An external driver must source at least IBHLO to switch this node from low to high.
#An external driver must sink at least IBHHO to switch this node from high to low.
||For I/O ports, the parameter IOZ includes the input leakage current.
P
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