74LVT2245(1998) データシートの表示（PDF） - Philips Electronics

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74LVT2245
(Rev.:1998)

3.3V Octal transceiver with 30Ω termination resistors (3-State)

Philips Electronics 

Philips Semiconductors

3.3V Octal transceiver with 30Ω

termination resistors (3-State)

Product specification

74LVT2245

LOGIC SYMBOL (IEEE/IEC)

19

G3

3 EN1 (BA)

1

3 EN2 (AB)

2

18

1

2

3

17

4

16

5

15

6

14

7

13

8

12

9

11

SV00015

PIN DESCRIPTION

PIN NUMBER SYMBOL

NAME AND FUNCTION

1

DIR

Direction control input

2, 3, 4, 5,

6, 7, 8, 9

A0 – A7 Data inputs/outputs (A side)

18, 17, 16, 15,

14, 13, 12, 11

B0 – B7

Data inputs/outputs (B side)

19

OE

Output enable input (active–Low)

10

GND Ground (0V)

20

VCC

Positive supply voltage

FUNCTION TABLE

INPUTS

OEn

DIR

L

L

L

H

H

X

H = High voltage level

L = Low voltage level

X = Don’t care

Z = High impedance “Off ” state

INPUTS/OUTPUTS

An

Bn

An= Bn

Inputs

Inputs

Bn =An

Z

Z

SCHEMATIC OF EACH OUTPUT

VCC

VCC

25Ω

25Ω

SV00102

ABSOLUTE MAXIMUM RATINGS1,2

SYMBOL

PARAMETER

CONDITIONS

RATING

UNIT

VCC

IIK

VI

IOK

VOUT

DC supply voltage

DC input diode current

DC input voltage3

DC output diode current

DC output voltage3

IOUT

DC output current

VI < 0

VO < 0

Output in Off or High state

Output in Low state

Output in High state

–0.5 to +4.6

V

–50

mA

–0.5 to +7.0

V

–50

mA

–0.5 to +7.0

V

128

mA

–64

Tstg

Storage temperature range

–65 to +150

°C

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to

absolute-maximum-rated conditions for extended periods may affect device reliability.

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction

temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.

3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.

1998 Feb 19

3

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