EM641FT8S Series
Low Power, 512Kx8 SRAM
512K x8 Bit Low Power CMOS Static RAM
GENERAL DESCRIPTION
FEATURES
- Very high speed : 45ns
- Process Technology : 0.15um Full CMOS
- Organization : 512K x8
The EM641FT8S is fabricated by EMLSI’s advanced full
CMOS process technology. The families support industrial
temperature range and Chip Scale Package for user flexi-
bility of system design. The families also supports low data
retention voltage for battery back-up operation with low
data retention current.
- Power Supply Voltage
=> EM641FT8S : 4.5V~5.5V
- Low Data Retention Voltage : 1.5V (MIN)
- Three state output and TTL Compatible
- Packaged product designed for 45/55/70ns
- Package Type: 32L-STSOP
The EM641FT8S is available in KGD, JEDEC standard 32
pin 8.0mm x 13.4mm STSOP package.
PRODUCT FAMILY
Power Dissipation
Product
Family
Operating
Temperature
Vcc Range
Speed
PKG Type
Standby
Operating
(ICC1.Max)
(ISB1, Typ.)
Industrial (-40 ~ 85oC)
Industrial (-40 ~ 85oC)
Industrial (-40 ~ 85oC)
EM641FT8S-45LF
EM641FT8S-55LF
EM641FT8S-70LF
4.5V~5.5V
4.5V~5.5V
4.5V~5.5V
45ns
55ns
70ns
1.5 µA
1.5 µA
1.5 µA
7mA
7mA
7mA
32-STSOP
32-STSOP
32-STSOP
PIN DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
Pre-charge Circuit
A
A
A
A
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
11
9
OE
A10
2
3
4
5
6
8
13
CS
A
0
I/O7
V
A
CC
1
I/O6
I/O5
I/O4
I/O3
VSS
I/O2
I/O1
I/O0
A0
A1
A2
A
V
SS
WE
2
A
A
3
Memory Array
512K x 8
17
A
4
A15
7
A
5
V
A
8
CC
6
EM641FT8S
A
7
9
A
A
A
A
A
A
6
A
18
16
A
8
10
11
A
9
A
10
14
12
13
14
15
16
12
7
Data
Cont
I/O0 ~ I/O7
I/O Circuit
Column Select
5
A
4
A3
A
A
A
A
A
14 15 16
17
A
A
A
18
13
12
11
Name
CS
Function
Name
Function
Power Supply
Ground
WE
OE
CS
VCC
Chip select input
Output Enable input
Write Enable input
Address Inputs
Control Logic
VSS
OE
WE
A0~A18
I/O0~I/O7
Data Inputs/Outputs
2
EMLSI [ Emerging Memory & Logic Solutions Inc ]
