CY7C199C-20ZI Cypress Semiconductor Corp, CY7C199C-20ZI Datasheet - Page 3

• Manufacturer Part Number: CY7C199C-20ZI
• Description: IC SRAM 256KBIT 20NS 28TSOP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C199C-20ZI

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP I
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1574

Document #: 38-05408 Rev. *A
Pin Layout and Specifications
Pin Description
Truth Table
A
CE
I/O
OE
V
V
WE
X
CC
SS
X
Pin
CE
H
L
L
L
Input
Control
Input or
Output
Control
Supply
Supply
Control
Type
Address Inputs.
Chip Enable.
Data Input/Outputs.
Output Enable.
Power (5.0V).
Ground.
Write Enable.
OE
H
X
L
X
WE
H
H
X
L
(continued)
Description
28 SOJ (8 x 18 x 3.5 mm) – V21
I/O
I/O
I/O
V
A
A
A
A
A
A
A
A
A
A
SS
10
12
13
14
11
5
6
7
8
9
0
1
2
I/Ox
High Z
Data Out
Data In
High Z
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Mode
Read
Write
Selected, outputs disabled
Deselect / Power-Down
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 21, 23,
11, 12, 13, 15,
16, 17, 18, 19
24, 25, 26
V
WE
A
A
A
A
OE
A
CE
I/O
I/O
I/O
I/O
I/O
CC
4
3
2
1
0
DIP
7
6
5
4
3
20
22
28
14
27
1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 21, 23,
11, 12, 13, 15,
16, 17, 18, 19
24, 25, 26
SOJ
20
22
28
14
27
Active (I
Power
Standby (I
Active (I
Active (I
CY7C199C
2, 3, 4, 5, 8, 9,
14, 15, 16, 17,
18, 19, 20, 22,
10, 11, 12, 13,
23, 24, 25, 26
Page 3 of 12
TSOP I
CC
CC
CC
28
27
21
SB
1
7
6
)
)
)
)