EM620FV8BT Series
Low Power, 256Kx8 SRAM
256K x8 Bit Low Power and Low Voltage CMOS Static RAM
GENERAL DESCRIPTION
FEATURES
The EM620FV8BT 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.
- 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-TSOP1
The EM620FV8BT series are available in KGD, JEDEC
standard 32 pin 8mm x 20mm TSOP.
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)
EM620FV8BT-45LF
EM620FV8BT-55LF
EM620FV8BT-70LF
2.7V~3.6V
2.7V~3.6V
2.7V~3.6V
45ns
55ns
70ns
1µA
1µA
1µA
3mA
3mA
3mA
32-TSOP1
32-TSOP1
32-TSOP1
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
Pre-charge Circuit
A11
A9
A8
1
32
OE
2
A10
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
3
4
5
6
7
8
9
CS1
I/O 7
I/O 6
I/O 5
I/O 4
I/O 3
VSS
I/O 2
I/O 1
A
0
V
CC
A13
WE
CS2
A15
VCC
A17
A16
A14
A12
A7
A
1
V
SS
A
2
Memory Array
1024 x 2048
A
3
A
4
A
5
A
6
A
EM620FV8BT-45LF
7
A
8
A
9
10
11
Data
Cont
I/O0 ~ I/O7
12
13
14
15
16
I/O Circuit
I/O 0
A0
Column Select
A6
A5
A4
A1
A2
A3
A
A
A
A
14
15 16
A
A
A
A
10 11 12 13
17
Name
Function
Name
Vcc
Vss
Function
WE
OE
CS1,CS2
OE
Chip select inputs
Output Enable input
Write Enable input
Address Inputs
Power Supply
Ground
Control Logic
CS1
CS2
WE
NC
No Connection
A0~A17
I/O0~I/O7
Data Inputs/Outputs
2
EMLSI [ Emerging Memory & Logic Solutions Inc ]
