HY62V256B-(I)/HY62U256B-(I) Series
32Kx8bit CMOS SRAM
DESCRIPTION
FEATURES
The HY62V256B-(I)/ HY62U256B-(I) is a high-
speed, low power and 32,786 x 8-bits CMOS
Static Random Access Memory fabricated using
Hyundai's high performance CMOS process
technology. It is suitable for use in low voltage
operation and battery back-up application. This
device has a data retention mode that guarantees
data to remain valid at the minimum power supply
voltage of 2.0 volt.
·
·
·
·
Fully static operation and Tri-state output
TTL compatible inputs and outputs
Low power consumption
Battery backup(LL-part)
- 2.0V(min.) data retention
·
Standard pin configuration
- 28 pin 330mil SOP
- 28 pin 8x13.4 mm TSOP-I
(Standard and Reversed)
Product
No.
Voltage
(V)
Speed
(ns)
Operation
Current(mA)
Standby
Current(uA)
Temperature
(°C)
HY62V256B
HY62V256B-I
HY62U256B
HY62U256B-I
3.3
3.3
3.0
3.0
85/100/120
85/100/120
100/120/150
100/120/150
2
2
2
2
20
25
15
20
0~70(Normal)
-40~85(E.T.)
0~70(Normal)
-40~85(E.T.)
Note 1. E.T. : Extended Temperature, Normal : Normal Temperature
2. Current value is max.
PIN CONNECTION
A14
A12
A7
Vcc
/WE
A13
A8
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
/OE
A11
A9
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
Vss
I/O3
I/O2
I/O1
A0
A3
A4
A2
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
15
16
17
18
19
20
21
22
23
24
25
26
27
28
3
A1
A6
4
A5
A0
3
A5
A9
5
A8
A6
I/O1
I/O2
I/O3
Vss
I/O4
I/O5
I/O6
I/O7
I/O8
/CS
A10
4
A11
/OE
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
A4
6
A13
/WE
Vcc
A14
A12
A7
A7
5
A3
7
A12
A14
Vcc
/WE
A13
A8
6
A2
7
8
8
8
7
A1
9
9
6
A0
10
11
12
13
14
10
11
12
13
14
5
I/O1
I/O2
I/O3
Vss
A6
4
A5
A9
A11
/OE
3
A4
A1
2
1
A3
A2
SOP
TSOP-I(Standard)
TSOP-I(Reversed)
PIN DESCRIPTION
BLOCK DIAGRAM
ROW DECODER
I/O1
A0
Pin Name
Pin Function
Chip Select
Write Enable
/CS
/WE
MEMORY ARRAY
512x512
/OE
Output Enable
Address Inputs
Data Input/Output
Power(+3.3V or 3.0V)
Ground
A0 ~ A14
I/O1 ~ I/O8
Vcc
A14
I/O8
/CS
/OE
/WE
Vss
This document is a general product description and is subject to change without notice. Hyundai Electronics does not assume any
responsibility for use of circuits described. No patent licenses are implied.
Rev.02 /Jan.99
Hyundai Semiconductor