74ALVCH16952 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

74ALVCH16952

16-bit registered transceiver (3-State)

Philips Electronics 

Philips Semiconductors

16-bit registered transceiver (3-State)

Preliminary specification

74ALVCH16952

AC WAVEFORMS

VCC = 2.3 TO 2.7 V RANGE

1. VM = 0.5 V

2. VX = VOL + 0.15V

3. VY = VOH – 0.15V

4. VI = VCC

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

the output load.

VCC = 3.0 TO 3.6 V RANGE AND VCC = 2.7 V

1. VM = 1.5 V

2. VX = VOL + 0.3V

3. VY = VOH – 0.3V

4. VI = 2.7 V

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

the output load.

2.7V

1/fmax

CPXX

INPUT

VM

GND

VOH

tW

tPHL

tPLH

An, Bn

OUTPUT

VM

VOL

SY00030

Waveform 1. Clock input (CPBA, CPAB) to output (Bn, An)

propagation delays, the clock pulse width and the maximum

clock pulse frequency.

2.7V

An, Bn

ÉÉÉ ÉÉÉÉÉÉÉÉÉ CEnn

INPUT

VM

ÉÉÉ ÉÉÉÉÉÉÉÉÉ GND

ÉÉÉ ÉÉÉÉÉÉÉÉÉ th

th

tSU

tSU

2.7V

CPXX

INPUT

VM

GND

NOTE: The shaded areas indicate when the input is permitted to change

for predictable output performance.

SY00031

Waveform 2. Set-up and hold times for the An, Bn and CEXX

inputs.

2.7V

OEXX 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

SY00032

Waveform 3. 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

Load circuitry for switching times

1998 Sep 01

9

Share Link: