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54LVTH245A

3.3V ABT Octal Bus Transceiver with 3-State Output

MAXWELL TECHNOLOGIES 

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

Outputs high

--

IO = 0

Outputs low

--

VI = VCC or GND

Outputs disabled --

Delta Supply Current

∆ICC 1 VCC = 3V to 3.6V, One input at VCC -0.6V, Other inputs at --

VCC or GND

Input Capacitance

CI2 VI = 3V or 0

--

Input Output Capacitance CO2 VO = 3V or 0

--

0.39 mA

14

0.39

0.2 mA

8

pF

15

pF

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)

PARAMETER

SYMBOL

VCC = 3.3V ± 0.3V

VCC = 2.7V

UNIT

MIN

MAX

MIN

MAX

Propagation Delay Time

tPLH

0.7

3.7

--

4.2

ns

A orB to B or A

tPHL

0.7

3.7

--

4.2

Output Enable Time

tPZH

1.2

5.7

--

7.4

ns

OE to A or B

tPZL

1.6

5.7

--

6.8

Output Disable Time

tPHZ

1.8

6.2

--

6.8

ns

OE to A or B

tPLZ

1.8

5.3

--

5.5

TABLE 7. FUNCTION TABLE

INPUTS

OPERATION

OE

DIR

L

L

B data to A bus

l

H

A data to B bus

H

X

Isolation

1000597

12.19.01 Rev 1

All data sheets are subject to change without notice 4

©2001 Maxwell Technologies

All rights reserved.

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