VC16374ADL datasheet(7/10 Pages) PHILIPS

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Philips Semiconductors

Product specification

74LVC16374A/

74LVCH16374A

16-bit edge triggered D-type flip-flop with 5 Volt

tolerant inputs/outputs (3-State)

1998 Mar 17

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

1/fMAX

tPHL

tPLH

CP INPUT

Qn OUTPUT

SW00078

GND

VOH

VOL

Waveform 1. Clock (CP) to output (Qn) propagation delays, the

clock pulse width and the maximum clock pulse frequency

tPLZ

tPZL

OE INPUT

GND

VCC

OUTPUT

LOW-to-OFF

OFF-to-LOW

VOL

VOH

OUTPUT

HIGH-to-OFF

OFF-to-HIGH

GND

outputs

enabled

outputs

enabled

outputs

disabled

tPHZ

tPZH

SW00072

Waveform 2. 3-State enable and disable times

SW00079

GND

INPUT

GND

VOH

OUTPUT

VOL

INPUT

tsu

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

for predictable output performance.

Waveform 3. Data set-up and hold times for the Dn input to the

CP input

TEST CIRCUIT

PULSE

GENERATOR

VIN

D.U.T.

VOUT

VCC

RL=500 Ω

SWITCH POSITION

TEST

SWITCH

tPLH/tPHL

Open

tPLZ/tPZL

<VCC

tPHZ/tPZH

GND

Test Circuit for 3-State Outputs

Open

GND

<VCC

DEFINITIONS

VCC

t 2.7V

2.7 – 3.6V

VIN

VCC

2.7V

RL = Load resistor

CL = Load capacitance includes jig and probe capacitance

RT = Termination resistance should be equal to ZOUT

of pulse generators.

SW00047

RL=500 Ω

Waveform 4. Load circuitry for switching times

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