EM640FP8 Series
merging Memory & Logic Solutions Inc.
Low Power, 512Kx8 SRAM
FEATURES
GENERAL DESCRIPTION
• Process Technology : 0.18mm Full CMOS
• Organization : 512K x 8 bit
• Power Supply Voltage : 1.65V ~ 2.2V
• Low Data Retention Voltage : 1.0V(Min)
• Three state outputs
The EM640FP8 families are fabricated by EMLSI’ s
advanced full CMOS process technology. The families
support industrial temperature range and Chip Scale
Package for user flexibility of system design. The fami-
lies also supports low data retention voltage for battery
back-up operation with low data retention current.
• Package Type : 36-FPBGA 6.0x7.0
PRODUCT FAMILY
Power Dissipation
Product
Family
Operating
Temperature
Vcc Range
Speed
PKG Type
Standby
(ISB1, Typ)
Operating
(ICC1.Max)
36 FPBGA
(6.0x7.0)
Industrial (-40 ~ 85oC)
1.65~2.2V
70ns1)
EM640FP8
1 mA
2 mA
1. The parameter is measured with 30pF test load.
PIN DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
5
6
Pre-charge Circuit
A
B
C
D
E
A0
A1
A2
CS2
WE
A3
A4
A6
A7
A8
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
VCC
VSS
I/O5
I/O6
VSS
VCC
I/O7
I/O8
A9
I/O1
I/O2
VCC
VSS
I/O3
I/O4
A14
Memory Array
DNU A5
2048 x 2048
Data
Cont
I/O1 ~ I/O4
I/O Circuit
Data
Cont
I/O5 ~ I/O8
Column Select
F
A18
CS1
A11
A17
A16
A12
G
H
OE
A15
A13
A
11 A12 A13 A14 A15 A16 A17 A
18
A10
36-FPBGA : Top view (ball down)
WE
OE
Control Logic
CS
1
Name
Function
Name
Function
CS
2
CS ,CS
Chip select inputs
WE Write Enable input
1
2
OE
Output Enable input
Address Inputs
Vcc Power Supply
Vss Ground
A ~A
0
18
I/O ~I/O
Data Inputs/outputs
DNU Do Not Use
1
8
2
EMLSI [ Emerging Memory & Logic Solutions Inc ]
