74ALVT16731 datasheet(2/12 Pages) PHILIPS

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Philips Semiconductors

Product specification

74ALVT16731

2.5V/3.3V 1-to-4 address register/driver (3-State)

1999 Mar 30

853-2145 21078

FEATURES

• 5V I/O Compatible

• 3-State outputs

• Output capability: +64 mA/-32 mA

• Bus-hold data inputs eliminate the need for external pull-up

resistors to hold unused inputs

• Live insertion/extraction permitted

• Power-up reset

• Power-up 3-State

• Positive edge triggered registers

• Latch-up protection exceeds 500 mA per JEDEC JC40.2 Std 17

• ESD protection exceeds 2000 V per MIL STD 883 Method 3015

and 200 V per machine model

• Bus hold data inputs eliminate the need for external pull-up

resistors to hold unused inputs

DESCRIPTION

The 74ALVT16731 is a high-performance BiCMOS product designed

for VCC operation at 2.5V to 3.3V with I/O compatibility up to 5V.

This device is a 1-to-4 address register/driver featuring non-inverting

3-State outputs. The state of the outputs are controlled by two

enable inputs (OE1 and OE2). Each enable input controls the state

of two of the four common outputs for each input. When an OEn

input is a logic High, the respective outputs will be in the high

impedance state. When an OEn input is a logic Low, the respective

outputs are active. The device can be configured for a transparent

mode from input to output or a register mode by the SEL input.

When SEL is a logic High the device is configured for transparent

mode and when SEL is a logic Low it is configured for register

mode. While in the register mode the output follows the input on the

rising edge of the CLK input. The function of the data registers is not

effected by either SEL or OEn.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

SYMBOL

PARAMETER

Tamb = 25°C; GND = 0V

2.5V

3.3V

UNIT

tPLH

tPHL

Propagation delay

nAx to nYx

CL = 50pF

3.1

2.3

2.1

1.8

CIN

Input capacitance

VI = 0V or VCC

COUT

Output capacitance

Outputs disabled; VO = 0V or VCC

ICCZ

Total supply current

Outputs disabled

µA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

56-Pin Plastic SSOP Type III

–40

°C to +85°C

74ALVT16731 DL

AV16731 DL

SOT371-1

56-Pin Plastic TSSOP Type II

–40

°C to +85°C

74ALVT16731 DGG

AV16731 DGG

SOT364-1

PIN DESCRIPTION

PIN NUMBER

SYMBOL

NAME AND FUNCTION

1, 4, 19, 25, 28, 32, 38, 41, 47, 53

GND

Ground

5, 6, 23, 24, 30, 31, 36, 37, 42, 43,

48, 49, 54, 55

1Yn, 2Yn

Output, controlled by OE1

2, 3, 20, 21, 26, 27, 33, 34, 39, 40,

45, 46, 51, 52

3Yn,4Yn

Output, controlled by OE2

7, 22, 29, 35, 44, 50, 56

VCC

Positive power supply

8, 9, 10, 15, 16, 17, 18

Data inputs

SEL

Select input, controls mode of device

CLK

Clock input

12, 13

OEn

Output enable

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