CY7C1021B-12VXI Cypress Semiconductor Corp, CY7C1021B-12VXI Datasheet - Page 2

• Manufacturer Part Number: CY7C1021B-12VXI
• Description: IC SRAM 1MBIT 12NS 44SOJ
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1021B-12VXI

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 1M (64K x 16)
• Speed: 12ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-SOJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 38-05145 Rev. *C
Selection Guide
Pin Configurations
Pin Definitions
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum CMOS Standby Current (mA)
Pin Name
I/O
BHE, BLE
A
0
1
V
V
WE
NC
CE
OE
–A
–I/O
CC
SS
15
16
1–5,18–21, 24–27, 42–44
SOJ, TSOP–Pin Number
7–10, 13–16, 29–32,
22, 23, 28
35–38
40, 39
12, 34
11, 33
17
41
6
Power Supply Power Supply inputs to the device.
Input/Control Write Enable Input, active LOW. When selected LOW, a Write is
Input/Control Chip Enable Input, active LOW. When LOW, selects the chip. When
Input/Control Byte Write Select Inputs, active LOW. BHE controls I/O
Input/Control Output Enable, active LOW. Controls the direction of the I/O pins.
Input/Output Bidirectional Data I/O lines. Used as input or output lines depending
No Connect No Connects. Not connected to the die.
I/O Type
Ground
Input
I/O
I/O
I/O
I/O
V
I/O
I/O
I/O
I/O
V
A
A
A
A
WE
NC
CE
CC
A
A
A
A
A
SS
15
14
13
12
4
3
2
1
0
1
2
3
4
5
6
7
8
Com’l/Ind’l
Automotive
Com’l/Ind’l
Automotive
L Version
SOJ/TSOP II
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
10
11
12
Top View
Address Inputs used to select one of the address locations.
on operation.
conducted. When deselected HIGH, a Read is conducted.
HIGH, deselects the chip.
BLE controls I/O
When LOW, the I/O pins are allowed to behave as outputs. When
deasserted HIGH, I/O pins are tri-stated, and act as input data pins.
Ground for the device. Should be connected to ground of the
system.
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A
A
A
OE
BHE
BLE
I/O
I/O
I/O
I/O
V
V
I/O
I/O
I/O
I/O
NC
A
A
A
A
NC
5
6
7
SS
CC
8
9
10
11
16
15
14
13
12
11
10
9
8
–I/O
1
.
Description
140
-12
0.5
12
10
CY7C1021B
Page 2 of 10
130
130
-15
0.5
10
15
15
16
–I/O
9,
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