HY628400 Series
512Kx8bit CMOS SRAM
DESCRIPTION
The HY628400 is a high-speed, low power and
4M bits CMOS SRAM organized as 524,288
words by 8 bits. The HY628400 uses Hyundai's
high performance twin tub CMOS process
technology and was designed for high-speed and
low power circuit technology. It is particulary well
suited for use in high-density and low power
system applications. This device has a data
retention mode that guarantees data to remain
valid at the minimum power supply voltage of
2.0V.
Product
Voltage
Speed
Operation
No.
(V)
(ns)
Current(mA)
HY628400
5.0
55/70/85
10
Note 1. Normal : Normal Temperature
2. Current value are max.
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Fully static operation and Tri-state outputs
TTL compatible inputs and outputs
Low power consumption
Battery backup(L/LL-part)
- 2.0V(min) data retention
鈥?/div>
Standard pin configuration
- 32pin 525mil SOP
- 32pin 400mil TSOP-II
(Standard and Reversed)
Standby Current(uA)
L
LL
100
30
Temperature
(擄C)
0~70(Normal)
PIN CONNECTION
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
Vss
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Vcc
A15
A17
/WE
A13
A8
A9
A11
/OE
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
Vss
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Vcc
A15
A17
/WE
A13
A8
A9
A11
/OE
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
Vcc
A15
A17
/WE
A13
A8
A9
A11
/OE
A10
/CS
I/O8
I/O7
I/O6
I/O5
I/O4
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
Vss
SOP
TSOP-II(Standard)
TSOP-II(Reversed)
PIN DESCRIPTION
Pin Name
/CS
/WE
/OE
A0 ~ A18
I/O1 ~ I/O8
Vcc
Vss
Pin Function
Chip Select
Write Enable
Output Enable
Address Input
Data Input/Output
Power(5.0V)
Ground
BLOCK DIAGRAM
A0
ADD INPUT BUFFER
COLUMN DECODER
SENSE AMP
ROW DECODER
I/O1
OUTPUT BUFFER
I/O8
A18
CONTROL
LOGIC
/CS
/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.04 /Jan.99
Hyundai Semiconductor
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