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SN74AUCH245 数据表(PDF) 4 Page - Texas Instruments

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部件名 SN74AUCH245
功能描述  OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS
Download  6 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

SN74AUCH245 数据表(HTML) 4 Page - Texas Instruments

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SN74AUCH245
OCTAL BUS TRANSCEIVER
WITH 3STATE OUTPUTS
SCES420 – JANUARY 2003
4
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
IOH = –100 µA
0.8 V to 2.7 V
VCC–0.1
IOH = –0.7 mA
0.8 V
0.55
V
IOH = –3 mA
1.1 V
0.8
V
VOH
IOH = –5 mA
1.4 V
1
V
IOH = –8 mA
1.65 V
1.2
IOH = –9 mA
2.3 V
1.8
IOL = 100 µA
0.8 V to 2.7 V
0.2
IOL = 0.7 mA
0.8 V
0.25
V
IOL = 3 mA
1.1 V
0.3
V
VOL
IOL = 5 mA
1.4 V
0.4
V
IOL = 8 mA
1.65 V
0.45
IOL = 9 mA
2.3 V
0.6
II
All inputs
VI = VCC or GND
0 to 2.7 V
±5
µA
VI = 0.35 V
1.1 V
10
I
VI = 0.47 V
1.4 V
15
A
IBHL‡
VI = 0.57 V
1.65 V
20
µA
VI = 0.7 V
2.3 V
40
VI = 0.8 V
1.1 V
–5
I
§
VI = 0.9 V
1.4 V
–15
A
IBHH§
VI = 1.07 V
1.65 V
–20
µA
VI = 1.7 V
2.3 V
–40
1.3 V
75
I
V0 to V
1.6 V
125
A
IBHLO¶
VI = 0 to VCC
1.95 V
175
µA
2.7 V
275
1.3 V
–75
I
#
V0 to V
1.6 V
–125
A
IBHHO#
VI = 0 to VCC
1.95 V
–175
µA
2.7 V
–275
Ioff
VI or VO = 2.7 V
0
±10
µA
IOZ||
VO = VCC or GND
2.7 V
±10
µA
ICC
VI = VCC or GND,
IO = 0
0.8 V to 2.7 V
20
µA
Ci
VI = VCC or GND
2.5 V
2.5
3
pF
Cio
VO = VCC or GND
2.5 V
8
8.5
pF
† All typical values are 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.


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