74LVC16245ADL View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

74LVC16245ADL

16-bit bus transceiver with direction pin; 5V tolerant (3-State)

Philips Electronics 

Philips Semiconductors

16-bit bus transceiver with direction pin; 5V tolerant

(3-State)

Product specification

74LVC16245A/

74LVCH16245A

AC WAVEFORMS

VM = 1.5V at VCC w 2.7V; VM = 0.5 VCC at VCC t 2.7V.

VOL and VOH are the typical output voltage drop that occur with the

output load.

VX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 VCC at VCC t 2.7V

VY = VOH –0.3V at VCC w 2.7V; VY = VOH – 0.1 VCC at VCC t 2.7V

VI

An, Bn

INPUT

VM

GND

VOH

tPHL

tPLH

Bn, An

OUTPUT

VM

VOL

SW00063

Waveform 1. Input (nAn, nBn) to output (nBn, nAn)

propagation delay times

VI

OE INPUT

VM

GND

VCC

OUTPUT

LOW-to-OFF

OFF-to-LOW

VOL

VOH

OUTPUT

HIGH-to-OFF

OFF-to-HIGH

GND

tPLZ

tPZL

tPHZ

outputs

enabled

VM

VX

tPZH

VY

VM

outputs

disabled

outputs

enabled

SW00064

Waveform 2. 3-State enable and disable times

TEST CIRCUIT

VCC

PULSE

GENERATOR

VIN

RT

D.U.T.

VOUT

CL

S1

2<VCC

Open

GND

RL=500 Ω

RL=500 Ω

Test Circuit for 3-State Outputs

SWITCH POSITION

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

SWITCH

Open

2<VCC

GND

VCC

t 2.7V

2.7 – 3.6V

VIN

VCC

2.7V

DEFINITIONS

RL = Load resistor

CL = Load capacitance includes jig and probe capacitance

RT = Termination resistance should be equal to ZOUT

of pulse generators.

SW00047

Waveform 3. Load circuitry for switching times

1997 Sep 25

6

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