参数资料
型号: SN74LVCH245APWR
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封装: GREEN, PLASTIC, TSSOP-20
文件页数: 25/29页
文件大小: 1104K
代理商: SN74LVCH245APWR
www.ti.com
Electrical Characteristics
SN54LVCH245A, SN74LVCH245A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCES008O – JULY 1995 – REVISED DECEMBER 2005
over recommended operating free-air temperature range (unless otherwise noted)
SN54LVCH245A
SN74LVCH245A
PARAMETER
TEST CONDITIONS
VCC
UNIT
MIN TYP(1)
MAX
MIN TYP(1)
MAX
VCC
1.65 V to 3.6 V
– 0.2
IOH = –100 A
VCC
2.7 V to 3.6 V
– 0.2
IOH = –4 mA
1.65 V
1.2
VOH
V
IOH = –8 mA
2.3 V
1.7
2.7 V
2.2
IOH = –12 mA
3 V
2.4
IOH = –24 mA
3 V
2.2
1.65 V to 3.6 V
0.2
IOL = 100 A
2.7 V to 3.6 V
0.2
IOL = 4 mA
1.65 V
0.45
VOL
V
IOL = 8 mA
2.3 V
0.7
IOL = 12 mA
2.7 V
0.4
IOL = 24 mA
3 V
0.55
II
Control inputs
VI = 0 to 5.5 V
3.6 V
±5
A
Ioff
VI or VO = 5.5 V
0
±10
A
VI = 0.58 V
25
1.65 V
VI = 1.07 V
–25
VI = 0.7 V
45
2.3 V
II(hold)
VI = 1.7 V
–45
A
VI = 0.8 V
75
3 V
VI = 2 V
–75
VI = 0 to 3.6 V(2)
3.6 V
±500
IOZ(3)
VO = 0 V or (VCC to 5.5 V)
2.3 V to 3.6 V
±15
±5
A
VI = VCC or GND
10
ICC
IO = 0
3.6 V
A
3.6 V
≤ V
I ≤ 5.5 V
(4)
10
One input at VCC – 0.6 V,
I
CC
2.7 V to 3.6 V
500
A
Other inputs at VCC or GND
Ci
Control inputs
VI = VCC or GND
3.3 V
4
12
4
pF
Cio
A or B port
VO = VCC or GND
3.3 V
5.5
12
5.5
pF
(1)
All typical values are at VCC = 3.3 V, TA = 25°C.
(2)
This is the bus-hold maximum dynamic current required to switch the input from one state to another.
(3)
For the total leakage current in an I/O port, please consult the II(hold) specification for the input voltage condition 0 V < VI < VCC, and the
IOZ specification for the input voltage conditions VI = 0 V or VI = VCC to 5.5 V. The bus-hold current, at input voltage greater than VCC, is
negligible.
(4)
This applies in the disabled state only.
5
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