74ALVT16841DL 查看數據表（PDF） - Philips Electronics

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74ALVT16841DL

2.5V/3.3V ALVT 20-bit bus interface latch (3-State)

Philips Electronics 

Philips Semiconductors

2.5V/3.3V 20-bit bus interface latch (3-State)

Product specification

74ALVT16841

FEATURES

• High speed parallel latches

• 5V I/O Compatible

• Live insertion/extraction permitted

• Extra data width for wide address/data paths or buses carrying

parity

• Power-up 3-State

• Power-up reset

• Ideal where high speed, light loading, or increased fan-in are

required with MOS microprocessors

• Output capability: +64mA/–32mA

• Latch-up protection exceeds 500mA per Jedec Std 17

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

resistors to hold unused inputs

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

and 200V per Machine Model

DESCRIPTION

The 74ALVT16841 Bus interface latch is designed to provide extra

data width for wider data/address paths of buses carrying parity. It is

designed for VCC operation at 2.5V or 3.3V with I/O compatibility to

5V.

The 74ALVT16841 consists of two sets of ten D-type latches with

3-State outputs. The flip-flops appear transparent to the data when

Latch Enable (nLE) is High. This allows asynchronous operation, as

the output transition follows the data in transition. On the nLE

High-to-Low transition, the data that meets the setup and hold time

is latched.

Data appears on the bus when the Output Enable (nOE) is Low.

When nOE is High the output is in the High-impedance state.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

tPLH

tPHL

CIN

COut

ICCZ

Propagation delay

nDx to nQx

Input capacitance DIR, OE

Output pin capacitance

Total supply current

CONDITIONS

Tamb = 25°C

CL = 50pF

VI = 0V or VCC

VI/O = 0V or VCC

Outputs disabled

TYPICAL

2.5V

3.3V

1.8

1.5

2.1

1.7

3

3

9

9

40

70

UNIT

ns

pF

pF

µA

ORDERING INFORMATION

PACKAGES

56-Pin Plastic SSOP Type III

56-Pin Plastic TSSOP Type II

TEMPERATURE RANGE OUTSIDE NORTH AMERICA

–40°C to +85°C

74ALVT16841 DL

–40°C to +85°C

74ALVT16841 DGG

NORTH AMERICA

AV16841 DL

AV16841 DGG

DWG NUMBER

SOT371-1

SOT364-1

1998 Feb 13

2

853-1868 18961

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