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SN74ABT245BDWRG4 bảng dữ liệu(PDF) 4 Page - Texas Instruments

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SN54ABT245A, SN74ABT245B
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCBS081L − JANUARY 1991 − REVISED APRIL 2005
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C
SN54ABT245A
SN74ABT245B
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
MAX
MIN
MAX
UNIT
VIK
VCC = 4.5 V,
II = −18 mA
−1.2
−1.2
−1.2
V
VCC = 4.5 V,
IOH = −3 mA
2.5
2.5
2.5
VOH
VCC = 5 V,
IOH = −3 mA
3
3
3
V
VOH
VCC = 4.5 V
IOH = −24 mA
2
2
V
VCC = 4.5 V
IOH = −32 mA
2*
2
VOL
VCC = 4.5 V
IOL = 48 mA
0.55
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.55*
0.55
V
Vhys
100
mV
Control inputs
VCC = 0 to 5.5 V, VI = VCC or GND
±1
±1
±1
II
A or B ports
VCC = 2.1 V to 5.5 V,
VI = VCC or GND
±20
±100
±20
µA
IOZPU
VCC = 0 to 2.1 V,
VO = 0.5 V to 2.7 V, OE = X
±50
±50
±50
µA
IOZPD
VCC = 2.1 V to 0,
VO = 0.5 V to 2.7 V, OE = X
±50
±50
±50
µA
IOZH‡
VCC = 2.1 V to 5.5 V,
VO = 2.7 V, OE ≥ 2 V
10
10
10
µA
IOZL‡
VCC = 2.1 V to 5.5 V,
VO = 0.5 V, OE ≥ 2 V
−10
−10
−10
µA
Ioff
VCC = 0,
VI or VO ≤ 5.5 V
±100
±100
µA
ICEX
VCC = 5.5 V,
VO = 5.5 V
Outputs high
50
50
50
µA
IO§
VCC = 5.5 V,
VO = 2.5 V
−50
−140
−180
−50
−180
−50
−180
mA
VCC = 5.5 V,
Outputs high
5
250
250
250
µA
ICC
A or B ports
VCC = 5.5 V,
IO = 0,
V = V
or GND
Outputs low
22
30
30
30
mA
ICC
A or B ports
IO = 0,
VI = VCC or GND
Outputs disabled
1
250
250
250
µA
Data inputs
VCC = 5.5 V,
One input at 3.4 V,
Outputs enabled
1.5
1.5
1.5
mA
∆ICC¶
Data inputs
One input at 3.4 V,
Other inputs at
VCC or GND
Outputs disabled
50
50
50
µA
CC
Control inputs
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
1.5
1.5
1.5
mA
Ci
Control inputs
VI = 2.5 V or 0.5 V
4
pF
Cio
A or B ports
VO = 2.5 V or 0.5 V
8
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ The parameters IOZH and IOZL include the input leakage current.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
¶ This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.


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