HY62256A Series
32Kx8bit CMOS SRAM
DESCRIPTION
FEATURES
The HY62256A is a high-speed, low power and
32,786 x 8-bits CMOS Static Random Access
·
·
·
·
Fully static operation and Tri-state output
TTL compatible inputs and outputs
Low power consumption
Battery backup(L/LL-part)
- 2.0V(min.) data retention
Standard pin configuration
- 28 pin 600 mil PDIP
- 28 pin 330mil SOP
- 28 pin 8x13.4 mm TSOP-I
(Standard and Reversed)
Memory fabricated using
Hyundai's high
performance CMOS process technology. The
HY62256A has a data retention mode that
guarantees data to remain valid at the minimum
power supply voltage of 2.0 volt. Using the CMOS
technology, supply voltages from 2.0 to 5.5volt
has little effect on supply current in the data
retention mode. The HY62256A is suitable for use
in low voltage operation and battery back-up
application.
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Product
No.
HY62256A
Voltage
(V)
Speed
(ns)
55/70/85
Operation
Current(mA)
50
Standby Current(uA)
Temperature
(°C)
0~70(Normal)
L
100
LL
25
5.0
1mA
Note 1. Current value is max.
PIN CONNECTION
Vcc
A14
A12
A7
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A14
A12
A7
Vcc
/WE
A13
A8
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
/WE
A13
A8
/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
3
1
2
28
14
13
12
11
10
9
15
16
17
18
19
20
21
22
23
24
25
26
27
28
3
A1
27
26
25
24
23
22
21
20
19
18
17
16
15
A6
4
A6
4
A5
A0
3
A9
A5
5
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
A4
A11
/OE
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
6
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
A3
7
A12
A14
Vcc
/WE
A13
A8
6
A2
8
A2
7
8
8
A1
8
7
A1
9
9
9
6
A0
10
11
12
13
14
A0
10
11
12
13
14
10
11
12
13
14
5
I/O1
I/O2
I/O3
Vss
I/O1
I/O2
I/O3
Vss
A6
4
A5
A9
A11
/OE
3
A4
A1
2
1
A3
A2
PDIP
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(+5.0V)
Ground
A0 ~ A14
I/O1 ~ I/O8
Vcc
A14
I/O8
/CS
Vss
/OE
/WE
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 /Jun.99
Hyundai Semiconductor