IS62VV25616LL 데이터 시트보기 (PDF) - Integrated Silicon Solution
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IS62VV25616LL Datasheet PDF : 10 Pages
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IS62VV25616L/LL
256K x 16 LOW VOLTAGE, 1.8V ULTRA
LOW POWER CMOS STATIC RAM
ISSI®
PRELIMINARY INFORMATION
NOVEMBER 2000
FEATURES
• High-speed access time: 70, 85, 100 ns
• CMOS low power operation
– 36 mW (typical) operating
– 9 µW (typical) CMOS standby
• TTL compatible interface levels
• Single 1.65V-1.95V VCC power supply
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
• Available in the 44-pin TSOP (Type II) and
48-pin mini BGA (7.2mm x 8.7mm)
DESCRIPTION
The ISSI IS62VV25616L and IS62VV25616LL are
high-speed, 4,194,304 bit static RAMs organized as
262,144 words by 16 bits. They are fabricated using
ISSI's high-performance CMOS technology. This highly
reliable process coupled with innovative circuit design
techniques, yields high-performance and low power
consumption devices.
For the IS62VV25616L/LL, when CE is HIGH (deselected)
or CE is low and both LB and UB are HIGH, 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 IS62VV25616L and IS62VV25616LL are packaged in
the JEDEC standard 44-pin TSOP (Type II) and 48-pin
mini BGA (7.2mm x 8.7mm).
FUNCTIONAL BLOCK DIAGRAM
A0-A17
DECODER
256K x 16
MEMORY ARRAY
VCC
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
I/O
DATA
CIRCUIT
COLUMN I/O
CE
OE
WE
CONTROL
CIRCUIT
UB
LB
This document contains PRELIMINARY INFORMATION data. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the
best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2000, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
1
PRELIMINARY INFORMATION Rev. 00C
11/30/00
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