Pin Description Table

Symbol

Description

Type

Comments

SA

Synchronous Address Inputs

Input

—

NC

No Connect

—

—

R

Synchronous Read

Input

Active Low

W

Synchronous Write

Input

Active Low

BW0–BW1

Synchronous Byte Writes

Input

Active Low

BW2–BW3

Synchronous Byte Writes

Input

Active Low (x36 only)

K

Input Clock

Input

Active High

K

Input Clock

Input

Active Low

C

Output Clock

Input

Active High

C

Output Clock

Input

Active Low

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

—

MCL

Must Connect Low

—

—

D0–D17

Synchronous Data Inputs

Input

D18–D35

Synchronous Data Inputs

Input

Q0–Q17

Synchronous Data Outputs

Output

Q18–Q35

Synchronous Data Outputs

Output

Power Supply

Supply

2.5 V Nominal

Isolated Output Buffer Supply

Supply

1.8 or 1.5 V Nominal

Power Supply: Ground

Supply

—

GS8180QV18/36BD-200/167

Rev: 1.02b 11/2011

4/28

© 2007, GSI Technology

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

Notes:

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