Pin Description Table

Symbol

Description

Type

Comments

SA

Synchronous Address Inputs

Input

—

NC

No Connect

—

—

R/W

Read/Write Contol Pin

Input

Write Active Low; Read Active High

NW0–NW1

Synchronous Nybble Writes

Input

Active Low

x08 Version

BW0–BW1

Synchronous Byte Writes

Input

Active Low

x18 Version

BW0–BW3

Synchronous Byte Writes

Input

Active Low

x36 Version

K

Input Clock

Input

Active High

C

Output Clock

Input

Active High

TMS

Test Mode Select

Input

—

TDI

Test Data Input

Input

—

TCK

Test Clock Input

Input

—

TDO

Test Data Output

Output

—

HSTL Input Reference Voltage

Input

—

ZQ

Output Impedance Matching Input

Input

—

K

Input Clock

Input

Active Low

C

Output Clock

Output

Active Low

DLL Disable

—

Active Low

LD

Synchronous Load Pin

—

Active Low

CQ

Output Echo Clock

Output

Active Low

CQ

Output Echo Clock

Output

Active High

Dn

Synchronous Data Inputs

Input

Qn

Synchronous Data Outputs

Output

Power Supply

Supply

1.8 V Nominal

Isolated Output Buffer Supply

Supply

1.8 or 1.5 V Nominal

Power Supply: Ground

Supply

—

Notes:

unconnected.

3. NC = Not Connected to die or any other pin

Preliminary

GS8342S08/09/18/36E-333/300/250/200/167

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

Rev: 1.02 8/2005

6/39

© 2003, GSI Technology