Etr onTech
Features
•
Single Power Supply Voltage, 2.3 ~ 3.6 V
•
Power Down Features Using CE1#, CE2, LB# and
UB#
•
Low Power Dissipation
•
Data retention Supply Voltage: 1.0V to 3.6V
•
Direct TTL Compatibility for All Input and Output
•
Wide Operating Temperature Range: -40°C to 85°C
•
Standby current (maximum) @ VDD = 3.6 V
Part Number
EM565161BA/BJ-55
EM565161BA/BJ-70
EM565161BA/BJ-55E/70E
EM565161
512K x 16 Low Power SRAM
Preliminary, Rev 0.9 01/2002
Pin Assignment
48-Ball BGA (CSP), Top View
1
2
3
4
5
6
A
LB#
OE#
A0
A1
A2
CE2
B
DQ8
UB#
A3
A4
CE1#
DQ 0
C
DQ9
DQ 10
A5
A6
DQ1
DQ 2
I
DDS2
Typical
Maximum
2
µA
2
µA
14
µA
35
µA
25
µA
80
µA
D
GND
DQ 11
A17
A7
DQ3
VDD
E
VDD
DQ 12
GND
A16
DQ4
GND
F
DQ 14
DQ 13
A14
A15
DQ5
DQ 6
Ordering Information
Part Number
EM565161BJ-70
EM565161BA-70
EM565161BA-70E
EM565161BJ-55
EM565161BA-55
EM565161BA-55E
Speed
70 ns
70 ns
70 ns
55 ns
55 ns
55 ns
I
DDS2
25
µA
25
µA
80
µA
35
µA
35
µA
80
µA
Package
6x9 BGA
8x10 BGA
8x10 BGA
6x9 BGA
8x10 BGA
8x10 BGA
G
DQ 15
NC
A12
A13
W E#
DQ 7
H
A18
A8
A9
A10
A11
NC
Pin Names
Symbol
A0 – A18
DQ0-DQ15
CE1#,CE2
OE#
WE#
LB#,UB#
GND
V
DD
NC
Function
Address Inputs
Data Inputs/Outputs
Chip Enable Input
Output Enable
Read/Write Control Input
Data Byte Control Inputs
Ground
Power Supply
No Connection
Overview
The EM565161 is an 8M-bit SRAM organized as 512K words by 16 bits. It is designed with advanced CMOS
technology. This Device operates from a single power supply. Advanced circuit technology provides both high
speed and low power. It is automatically placed in low-power mode when CE1# or both UB# and LB# are
asserted high or CE2 is 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 EM565161 can be used in environments exhibiting extreme
temperature conditions.
Etron Technology, Inc.
No. 6, Technology Rd. V, Science-Based Industrial Park, Hsinchu, Taiwan 30077, R.O.C.
TEL: (886)-3-5782345
FAX: (886)-3-5778671
Etron Technology, Inc., reserves the right to make changes to its products and specifications without notice.
ETRON [ ETRON TECHNOLOGY, INC. ]
