PI74SSTUA32864 datasheet(8/10 Pages) PERICOM

8 / 10 page

PS8743D

11/06/07

PI74SSTUA32864

25-Bit 1:1, or 14-Bit 1:2

Conﬁgurable Registered Buffer

Voltage and Current Waveforms

Input Active and Inactive Times

Voltage Waveforms - Pulse Duration

Voltage Waveforms - Setup and Hold Times

Test Circuit and Switching Waveforms

Figure 1. Parameter Measurement Information (VDD = 1.8V ± 0.1V)

Load Circuit

Voltage Waveforms - Propagation Delay Times

Output

VICR

tPLH

tPHL

VICR

VID

VOH

VTT

VOL

LVCMOS

RST

Input

IDD(2)

VDD

VDD/2

tinact

10%

90%

tact

VDD/2

LVCMOS

RESET

Input

Output

tRPHL

VDD/2

VOH

VIH

VIL

VTT

VOL

Input

VICR

VID

Input

tsu

VIL

VICR

VREF

VID

VIH

TL= 350ps, 50-ohm

R = 1000-ohm

VDD

CL= 30pF

(see note 1)

DUT

RL= 100-ohm

Test Point

CK Inputs

TL= 50-ohm

R = 1000-ohm

Out

Notes:

CL includes probe and jig capacitance

IDD tested with clock and data inputs held at VDD or GND and IO = 0mA

All input pulses are supplied by generators having the following characteristics: Pulse Repertition Rate ≥ 10 MHz, ZO = 50Ω, input slew

rate = 1V/ns ± 20% (unless otherwise speciﬁed).

The outputs are measured one at a time with one transition per measurement.

VREF = VDD /2

VIH = VREF +250mV (ac voltage levels) for differential inputs. VIH = VDD for LVCMOS input.

VIL = VREF -250mV (ac voltage levels) for differential inputs. VIL = GND for LVCMOS input.

VID = 600mV

tPLH and tPHL are the same as tpdm.

07-0266

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