®
IS61C6416AL IS64C6416AL
IS62C6416AL IS65C6416AL
ISSI
64K x 16 HIGH-SPEED CMOS STATIC RAM
JANUARY2005
FEATURES
DESCRIPTION
The ISSIIS61C6416AL, IS62C6416AL, IS64C6416AL and
IS65C6416AL are high-speed, 1,048,576-bit static RAMs
organized as 65,536 words by 16 bits. They are fabricated
usingISSI'shigh-performanceCMOStechnology.Thishighly
reliable process coupled with innovative circuit design tech-
niques, yields access times as fast as 12 ns with low power
consumption.
IS61C6416AL and IS64C6416AL
• High-speed access time: 12 ns, 15ns
• Low Active Power: 175 mW (typical)
• Low Standby Power: 1 mW (typical)
CMOS standby
IS62C6416AL and IS65C6416AL
When CE is HIGH (deselected), the device assumes a
standbymodeatwhichthepowerdissipationcanbereduced
down with CMOS input levels.
• High-speed access time: 35 ns, 45ns
• Low Active Power: 50 mW (typical)
• Low Standby Power: 100 µW (typical)
CMOS standby
Easy memory expansion is provided by using Chip Enable
andOutputEnableinputs,CEandOE.TheactiveLOWWrite
Enable(WE)controlsbothwritingandreadingofthememory.
A data byte allows Upper Byte (UB) and Lower Byte (LB)
access.
• TTL compatible interface levels
• Single 5V ± 10% power supply
• Fully static operation: no clock or refresh
required
The IS61C6416AL, IS62C6416AL, IS64C6416AL and
IS65C6416AL are packaged in the JEDEC standard 44-pin
400-mil SOJ and 44-pin TSOP (Type II).
• Available in 44-pin SOJ package and
44-pin TSOP (Type II)
• Commercial, Industrial and Automotive tempera-
ture ranges available
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
64K x 16
MEMORY ARRAY
A0-A15
DECODER
VDD
GND
I/O0-I/O7
Lower Byte
I/O
DATA
COLUMN I/O
CIRCUIT
I/O8-I/O15
Upper Byte
CE
OE
WE
CONTROL
CIRCUIT
UB
LB
Copyright © 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability
arisingoutoftheapplicationoruseofanyinformation, productsorservicesdescribedherein. Customersareadvisedtoobtainthelatestversionofthisdevicespecificationbeforerelyingonany
publishedinformationandbeforeplacingordersforproducts.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
1
01/17/05