CY7C1021CV26(2004) Просмотр технического описания (PDF) - Cypress Semiconductor
Номер в каталоге
Компоненты Описание
производитель
CY7C1021CV26 Datasheet PDF : 9 Pages
| |||
CY7C1021CV26
Pin Configuration
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
A14 19
A13 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 I/O13
34 VSS
33 VCC
32 I/O12
31 I/O11
30 I/O10
29 I/O9
28 NC
27 A8
26 A9
25 A10
24 A11
23 NC
Pin Definitions
Pin Name
A0–A15
I/O1–I/O16
NC
WE
Pin Number I/O Type
1–5, 18–21, Input
24–27,
42–44
7–10,
13–16,
29–32,
35–38
Input/Output
22, 23, 28 No Connect
17
Input/Control
CE
6
Input/Control
BHE, BLE
39, 40
Input/Control
OE
41
Input/Control
VSS
12, 34
Ground
VCC
11, 33
Power Supply
Note:
2. NC pins are not connected on the die.
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. BLE controls I/O8–I/O1, BHE controls
I/O16–I/O9.
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 three-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.
Document #: 38-05589 Rev. **
Page 2 of 9
Share Link: 