3.3V ABT Octal Bus Transceiver
with 3-State Output
54LVTH245A
TABLE 5. 54LVTH245A ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±10%, TA = -55 to +125°C, UNLESS OTHERWISE SPECIFIED)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
UNIT
Supply Current
ICC
VCC = 3.6V
IO = 0
VI = VCC or GND
Outputs high
Outputs low
Outputs disabled
--
--
--
--
0.39
14
0.39
0.2
mA
1
Delta Supply Current
∆ICC VCC = 3V to 3.6V, One input at VCC -0.6V, Other inputs at
mA
V
CC or GND
Input Capacitance
Input Output Capacitance
CI2
CO
VI = 3V or 0
VO = 3V or 0
--
--
8
15
pF
pF
2
1. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
2. Guaranteed by design.
TABLE 6. 54LVTH245A AC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±10%, TA = -55 RO 125°C, UNLESS OTHERWISE NOTED)
VCC = 3.3V ± 0.3V
VCC = 2.7V
SYMBOL
UNIT
PARAMETER
MIN
MAX
MIN
MAX
Propagation Delay Time
A orB to B or A
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
0.7
0.7
1.2
1.6
1.8
1.8
3.7
3.7
5.7
5.7
6.2
5.3
--
--
--
--
--
--
4.2
4.2
7.4
6.8
6.8
5.5
ns
ns
ns
Output Enable Time
OE to A or B
Output Disable Time
OE to A or B
TABLE 7. FUNCTION TABLE
INPUTS OPERATION
OE
DIR
L
l
H
L
H
X
B data to A bus
A data to B bus
Isolation
1000597
12.19.01 Rev 1
All data sheets are subject to change without notice
4
©2001 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
