Silego Technology Inc.

(408) 327-8800

SLGSSTU32864E

5

PRELIMINARY

Data is subject to change.

Mar 5, 2004

SLGSSTU32864 Terminal Description:

Function Table

TERMINAL

NAME

TYPE

DESCRIPTION

Q (1:25)

OUTPUT

Q-Outputs that are stopped by CSR & DCS control.

GND

GROUND

Ground

VDD

POWER

Supply voltage

D (1:25)

INPUT

D-Inputs latched in on the rising edge of CLK crossing falling edge of CLK

CLK

INPUT

Positive clock input

CLK

INPUT

Negative clock input

C0,C1

INPUT

Control inputs for register configurations: 1:1 , 1:2 A , 1:2 B

RESET

INPUT

Asynchronous reset (active low)

VREF

INPUT

Input reference voltage. Both inputs are internally connected together by 200

Ω

CSR, DCS

INPUT

Chip select control pins. Q1-Q25 outputs stopped when CSR & DCS=high

DODT

INPUT

D-input. This register not stopped by CSR & DCS control.

DCKE

INPUT

D-input. This register not stopped by CSR & DCS control.

QCS

OUTPUT

Q-Output. Not stopped by CSR & DCS control.

QODT

OUTPUT

Q-Output. Not stopped by CSR & DCS control.

QCKE

OUTPUT

Q-Output. Not stopped by CSR & DCS control.

NC

NC

No-connect. Ball present, but no internal connection to the die.

DNU

DNU

Do-not-use. Ball internally connected to the die and should be left open-circuit.

ZOL,ZOH

NC

Reserved for future use. Ball present, not electrically connected to the die.

Inputs

Outputs

RESET

DCS

CSR

CLK

CLK

Dn,DODT

, DCKE

Qn

QCS

QODT,

QCKE

H

L

L

L

L

L

L

H

L

L

H

H

L

H

H

L

L

L or H

L or H

X

H

L

H

L

L

L

L

H

L

H

H

H

L

H

H

L

H

L or H

L or H

X

H

H

L

L

L

H

L

H

H

L

H

H

H

H

H

H

L

L or H

L or H

X

H

H

H

L

H

L

H

H

H

H

H

H

H

H

H

L or H

L or H

X

L

X, or

Floating

X, or

Floating

X, or

Floating

X, or

Floating

X, or

Floating

L

L

L