EM562081 Datasheet, PDF (1/12 Pages) Etron Technology, Inc. – 256K x 8 Low Power SRAM

EtronTech
Features
• Single power supply voltage of 2.7V to 3.6V
• Power down features using CE1# and CE2
• Low operating current : 25mA(max. for 70 ns)
• Maximum Standby current : 10µA at 3.6 V
• Data retention supply voltage: 1.5V to 3.6V
• Direct TTL compatibility for all input and output
• Wide operating temperature range: -40°C to 85°C
• Package type: 36-ball TFBGA, 6x8mm
EM562081
256K x 8 Low Power SRAM
Preliminary, Rev 1.0 7/2001
asserted low. There are three control inputs. CE1# and
CE2 are used to select the device and for data retention
control, and output enable (OE#) provides fast memory
access. Data byte control pin (LB#,UB#) provides lower
and upper byte access. This device is well suited to
various microprocessor system applications where high
speed, low power and battery backup are required. And,
with a guaranteed operating range from -40°C to 85°C,
the EM562081 can be used in environments exhibiting
extreme temperature conditions.
Ordering Information
Part Number
Speed IDDS2
EM562081BC-70 70 ns 10 µA
EM562081BC-85 85 ns 10 µA
Package
6x8 BGA
6x8 BGA
Pin Names
Symbol
A0 - A17
DQ0-DQ7
CE1#,CE2
OE#
WE#
GND
VDD
NC
Function
Address Inputs
Data Inputs/Outputs
Chip Enable Inputs
Output Enable
Read/Write Control Input
Ground
Power Supply
No Connection
Pin Assignment
1. 36-Ball BGA (CSP), Top View
1
2
3
4
5
6
A
A0
A1
CE2
A3
A6
A8
B
DQ4
A2
WE#
A4
A7
DQ0
C
DQ5
NC
A5
DQ1
D
GND
VDD
E
VDD
GND
F
DQ6
NC
A1 7
DQ2
G
DQ 7 _{O E#}
CE 1# A 1 6
A15
DQ3
H
A9
A1 0
A1 1
A12
A13
A14
Overview
The EM562081 is a 2,097,152-bit SRAM organized as
262,144 words by 8 bits. It is designed with advanced
CMOS technology. This Device operates from a single
2.7V to 3.6V power supply. Advanced circuit
technology provides both high speed and low power. It
is automatically placed in low-power mode when chip
enable (CE1#) is asserted high or (CE2) is
Etron Technology, Inc.
No. 6, Technology Rd. V, Science-Based Industrial Park, Hsinchu, Taiwan 30077, R.O.C
TEL: [phone] FAX: [phone]
Etron Technology, Inc., reserves the right to make changes to its products and specifications without notice.