EtronTech
Features
•
Organized as 2M words by 16 bits
•
Fast Cycle Time : 55ns, 70ns
•
Standby Current : 100uA
•
Deep power-down Current : 10uA (Memory cell data
invalid)
•
Byte data control: LB# (DQ0 - 7), UB# (DQ8 - 15)
•
Compatible with low power SRAM
•
Single Power Supply Voltage : 3.0V±0.3V
•
Package Type : 48-ball FBGA, 6x8mm
EM567168
2M x 16 Pseudo SRAM
Rev 1.1
Apr. 2004
Pin Assignment 48-Ball BGA, Top View
1
2
3
4
5
6
A
LB#
OE#
A0
A1
A2
CE2
B
DQ8
UB#
A3
A4
CE1#
DQ0
C
DQ9
DQ10
A5
A6
DQ1
DQ2
Pin Description
Symbol
A0 – A20
DQ0 – DQ15
CE1#
CE2
OE#
WE#
LB#
UB#
V
CC
V
SS
Function
Address Inputs
Data Inputs/Outputs
Chip Enable
Deep Power Down
Output Enable
Write Control
Lower Byte Control
Upper Byte Control
Power Supply
Ground
D
VSS
DQ11
A17
A7
DQ3
VCC
E
VCC
DQ12
NC
A16
DQ4
VSS
F
DQ14
DQ13
A14
A15
DQ5
DQ6
G
DQ15
A19
A12
A13
WE#
DQ7
H
A18
A8
A9
A10
A11
A20
Overview
The EM567168 is a 32M-bit Pseudo SRAM organized as 2M words by 16 bits. It is designed with advanced
CMOS technology specified RAM featuring low power static RAM compatible function and pin configuration.
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 output
enable (OE#) provides fast memory access. Data byte control pins (LB#,UB#) provide 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 wide operating range, the EM567168 can be used in
environments exhibiting extreme temperature conditions.
Pin Location
Symbol Location Symbol Location Symbol Location Symbol Location Symbol
A0
A3
A8
H2
A16
E4
DQ3
D5
DQ11
A1
A4
A9
H3
A17
D3
DQ4
E5
DQ12
A2
A5
A10
H4
A18
H1
DQ5
F5
DQ13
A3
B3
A11
H5
A19
G2
DQ6
F6
DQ14
A4
B4
A12
G3
A20
H6
DQ7
G6
DQ15
A5
C3
A13
G4
DQ0
B6
DQ8
B1
CE1#
A6
C4
A14
F3
DQ1
C5
DQ9
C1
CE2
A7
D4
A15
F4
DQ2
C6
DQ10
C2
OE#
Location Symbol Location
D2
WE#
G5
E2
LB#
A1
F2
UB#
B2
F1
VCC
D6
G1
VCC
E1
B5
GND
D1
A6
GND
E6
A2
NC
E3
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. ]
