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EM620FV8BS Series
Low Power, 256Kx8 SRAM
2
FEATURES
- Process Technology : 0.15mm Full CMOS
- Organization :256K x8
- Power Supply Voltage
=> EM620FV8BS Series : 2.7V~3.6V
- Low Data Retention Voltage : 1.5V (MIN)
- Three state output and TTL Compatible
- Packaged product designed for 45/55/70ns
-
Package Type: 32-sTSOP1
EM620FV8BS-45LF
256K x8 Bit Low Power and Low Voltage CMOS Static RAM
1
I/O Circuit
Column Select
Data
Cont
Pre-charge Circuit
Memory Array
1024 x 2048
A1
A2
A3
A4
A5
A6
A7
A0
A8
A9
A10 A11 A12 A13 A14 A15 A16
WE
OE
CS1
I/O0 ~ I/O7
VCC
VSS
Control Logic
CS2
A17
GENERAL DESCRIPTION
The EM620FV8BS series are fabricated by EMLSI’s
advanced full CMOS process technology. The families
support industrial temperature range and Chip Scale Pack-
age for user flexibility of system design. The families also
supports low data retention voltage for battery back-up
operation with low data retention current.
The EM620FV8BS series are available in KGD, JEDEC
standard 32 pin 8mm x 13.4mm sTSOP package.
PRODUCT FAMILY
Product
Family
Operating
Temperature
Vcc Range
Speed
Power Dissipation
PKG Type
Standby
(ISB1, Typ.)
Operating
(ICC1.Max)
EM620FV8BS-45LF
Industrial (-40 ~ 85oC)
2.7V~3.6V
45ns
1
µA
3mA
32-sTSOP
EM620FV8BS-55LF
Industrial (-40 ~ 85oC)
2.7V~3.6V
55ns
1
µA
3mA
32-sTSOP
EM620FV8BS-70LF
Industrial (-40 ~ 85oC)
2.7V~3.6V
70ns
1
µA
3mA
32-sTSOP
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
Name
Function
Name
Function
CS1,CS2
Chip select inputs
Vcc
Power Supply
OE
Output Enable input
Vss
Ground
WE
Write Enable input
NC
No Connection
A0~A17
Address Inputs
I/O0~I/O7
Data Inputs/Outputs
2
3
4
5
6
7
8
A11
A9
9
10
11
12
13
14
15
16
A8
A13
WE
CS2
A15
VCC
A17
A16
A14
A12
A7
A6
A5
A4
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
CS1
A10
A0
A1
A2
A3
I/O 7
I/O 6
I/O 5
I/O 4
I/O 3
I/O 2
I/O 1
I/O 0
VSS