CY7C1021CV26-15BAET(2010) データシートの表示（PDF） - Cypress Semiconductor
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CY7C1021CV26-15BAET Datasheet PDF : 15 Pages
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CY7C1021CV26
Selection Guide[1]
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
–15
Unit
15
ns
80
mA
10
mA
Pin Configuration[2]
TSOP II -Top View
A4 1
A3 2
A2 3
A1 4
A0 5
CE 6
I/O1 7
I/O2 8
I/O3 9
I/O4 10
VCC 11
VSS 12
I/O5 13
I/O6 14
I/O7 15
I/O8 16
WE 17
A15 18
AA1143
19
20
A12 21
NC 22
44 A5
43 A6
42 A7
41 OE
40 BHE
39 BLE
38 I/O16
37 I/O15
36 I/O14
35
34
VI/OSS13
33 VCC
32 I/O12
31 I/O11
30
29
II//OO190
28 NC
27 A8
26
25
24
AAA91101
23 NC
Pin Definitions
Pin Name Pin Number
I/O Type
A0–A15
1–5, 18–21, Input
24–27, 42–44
I/O1–I/O16 7–10, 13–16, Input/Output
29–32, 35–38
NC
22, 23, 28
No Connect
WE
17
Input/Control
CE
6
Input/Control
BHE, BLE 40, 39
Input/Control
OE
41
Input/Control
VSS
12, 34
VCC
11, 33
Ground
Power Supply
Description
Address Inputs used to select one of the address locations.
Bidirectional Data I/O lines. Used as input or output lines depending on operation.
No Connects. This pin is not connected to the die.
Write Enable Input, active LOW. When selected LOW, a Write is conducted. When
selected HIGH, a Read is conducted.
Chip Enable Input, active LOW. When LOW, selects the chip. When HIGH,
deselects the chip.
Byte Write Select Inputs, active LOW. BHE controls I/O16–I/O9, BLE controls
I/O8–I/O1.
Output Enable, active LOW. Controls the direction of the I/O pins. 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.
Power Supply inputs to the device.
Notes
1. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ.), TA = 25 °C.
2. NC pins are not connected on the die.
Document Number: 38-05589 Rev. *E
Page 3 of 15
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