IS64WV6416BLL
IS61WV6416BLL
64K x 16 HIGH-SPEED CMOS STATIC RAM
ISSI
NOVEMBER 2005
®
FEATURES
• High-speed access time:
12 ns: 3.3V + 10%
15 ns: 2.5V-3.6V
• CMOS low power operation:
50 mW (typical) operating
25 µW (typical) standby
• TTL compatible interface levels
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Automotive Temperature Available
• Lead-free available
DESCRIPTION
The
ISSI
IS61/64WV6416BLL is a high-speed, 1,048,576-
bit static RAM organized as 65,536 words by 16 bits. It is
fabricated using
ISSI
's high-performance CMOS
technology. This highly reliable process coupled with inno-
vative circuit design techniques, yields access times as
fast as 12ns (3.3V + 10%) and 15ns (2.5V-3.6V) with low
power consumption.
When
CE
is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down with CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs,
CE
and
OE.
The active LOW
Write Enable (WE) controls both writing and reading of the
memory. A data byte allows Upper Byte (UB) and Lower
Byte (LB) access.
The IS61/64WV6416BLL is packaged in the JEDEC stan-
dard 44-pin TSOP-II, and 48-pin mini BGA (6mm x 8mm).
FUNCTIONAL BLOCK DIAGRAM
A0-A15
DECODER
64K x 16
MEMORY ARRAY
V
DD
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
I/O
DATA
CIRCUIT
COLUMN I/O
CE
OE
WE
UB
LB
CONTROL
CIRCUIT
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
arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any
published information and before placing orders for products.
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
11/08/05
1
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
