CY7C1021CV33-10BAXIT Ver la hoja de datos (PDF) - Cypress Semiconductor
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CY7C1021CV33-10BAXIT Datasheet PDF : 14 Pages
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CY7C1021CV33
Pin Definitions
Pin Name
A0–A15
IO1–IO16 [2]
NC
WE
CE
BHE, BLE
OE
VSS
VCC
SOJ, TSOP
Pin Number
BGA Pin
Number
IO Type
Description
1–5, 18–21, A3, A4, A5, B3,
24–27, 42–44 B4, C3, C4,
D4, H2, H3,
H4, H5, G3,
G4, F3, F4
Input
Address Inputs. Used to select one of the address locations.
7–10, 13–16, B6, C6, C5, Input or Output Bidirectional Data IO lines. Used as input or output lines depending
29–32, 35–38 D5, E5, F5, F6,
on operation.
G6, B1, C1,
C2, D2, E2,
F2, F1, G1
22, 23, 28 A6, D3, E3, No Connect No Connects. Not connected to the die.
E4, G2, H1, H6
17
G5
Input or Write Enable Input, Active LOW. When selected LOW, a write is
Control conducted. When deselected HIGH, a read is conducted.
6
B5
Input or Chip Enable Input, Active LOW. When LOW, selects the chip.
Control When HIGH, deselects the chip.
40, 39
41
B2, A1
A2
Input or
Control
Input or
Control
Byte Write Select Inputs, Active LOW. BHE controls IO16 – IO9,
BLE controls IO8 – IO1.
Output Enable, Active LOW. Controls the direction of the IO pins.
When LOW, the IO pins are allowed to behave as outputs. When
deasserted HIGH, the IO pins are tri-stated and act as input data
pins.
12, 34
D1, E6
Ground Ground for the Device. Connected to ground of the system.
11, 33
D6, E1 Power Supply Power Supply Inputs to the Device.
Note
2. IO1–IO16 for SOJ/TSOP and IO0–IO15 for BGA packages.
Document Number: 38-05132 Rev. *I
Page 3 of 14
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