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SN74ALVCH245_07 Datasheet, PDF (4/14 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
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SN74ALVCH245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES119G – JULY 1997 – REVISED SEPTEMBER 2004
www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
VOH
IOH = -100 µA
IOH = -4 mA
IOH = -6 mA
TEST CONDITIONS
IOH = -12 mA
VCC
1.65 V to 3.6 V
1.65 V
MIN
VCC - 0.2
1.2
2.3 V
2
2.3 V
1.7
2.7 V
2.2
3V
2.4
TYP(1) MAX
UNIT
V
IOH = -24 mA
IOL = 100 µA
IOL = 4 mA
VOL
IOL = 6 mA
IOL = 12 mA
3V
2
1.65 V to 3.6 V
1.65 V
2.3 V
2.3 V
2.7 V
0.2
0.45
0.4
V
0.7
0.4
II
II(hold)
IOZ (3)
ICC
∆ICC
Ci Control inputs
Cio A or B ports
IOL = 24 mA
VI = VCC or GND
VI = 0.58 V
VI = 1.07 V
VI = 0.7 V
VI = 1.7 V
VI = 0.8 V
VI = 2 V
VI = 0 to 3.6 V(2)
VO = VCC or GND
VI = VCC or GND,
One input at VCC - 0.6 V,
VI = VCC or GND
VO = VCC or GND
IO = 0
Other inputs at VCC or GND
3V
3.6 V
1.65 V
1.65 V
2.3 V
2.3 V
3V
3V
3.6 V
3.6 V
3.6 V
3 V to 3.6 V
3.3 V
3.3 V
0.55
±5 µA
25
-25
45
-45
µA
75
-75
±500
±10 µA
10 µA
750 µA
4.5
pF
12
pF
(1) All typical values are at VCC = 3.3 V, TA = 25°C.
(2) This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to
another.
(3) For I/O ports, the parameter IOZ includes the input leakage current.
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
PARAMETER
tpd
ten
tdis
FROM
(INPUT)
A or B
OE
OE
TO
(OUTPUT)
B or A
A or B
A or B
VCC = 1.8 V
± 0.15 V
MIN MAX
1.5
6
3.4 8.6
2.7
8
VCC = 2.5 V
± 0.2 V
MIN MAX
1 3.5
2
6
1 4.8
VCC = 2.7 V
MIN MAX
3.6
6.3
5.3
VCC = 3.3 V
± 0.3 V
MIN MAX
1.3 3.4
1.6 5.5
1.7 5.5
UNIT
ns
ns
ns
OPERATING CHARACTERISTICS
TA = 25°C
PARAMETER
Cpd
Power dissipation capacitance
per transceiver
Outputs enabled
Outputs disabled
TEST CONDITIONS
CL = 0, f = 10 MHz
VCC = 1.8 V
TYP
25
0
VCC = 2.5 V
TYP
28
0
VCC = 3.3 V
TYP
31
0
UNIT
pF
4
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