CY7C1021CV33-10ZXI データシートの表示（PDF） - Cypress Semiconductor

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CY7C1021CV33-10ZXI

1-Mbit (64K x 16) Static RAM

Cypress Semiconductor 

CY7C1021CV33

Pin Definitions

SOJ, TSOP BGA Pin

Pin Name Pin Number Number

I/O Type

Description

A0–A15

I/O0–I/O15[3]

1–5, 18–21, A3, A4, A5,

24–27, 42–44 B3, B4, C3,

C4, D4, H2,

H3, H4, H5,

G3, G4, F3,

F4

7–10, 13–16, B6, C6, C5,

29–32, 35–38 D5, E5, F5,

F6, G6, B1,

C1, C2, D2,

E2, F2, F1,

G1

Input Address Inputs used to select one of the address locations.

Input/Output Bidirectional Data I/O lines. Used as input or output lines

depending on operation.

NC

22, 23, 28 A6, D3, E3, No Connect No Connects. Not connected to the die.

E4, G2, H1,

H6

WE

17

G5

Input/Control Write Enable Input, active LOW. When selected LOW, a Write is

conducted. When deselected HIGH, a Read is conducted.

CE

6

B5

Input/Control Chip Enable Input, active LOW. When LOW, selects the chip.

When HIGH, deselects the chip.

BHE, BLE

OE

40, 39

41

B2, A1

A2

Input/Control Byte Write Select Inputs, active LOW. BHE controls I/O16–I/O9,

BLE controls I/O8–I/O1.

Input/Control 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.

VSS

12,34

D1, E6

Ground Ground for the device. Should be connected to ground of the

system.

VCC

11,33

D6, E1 Power Supply Power Supply inputs to the device.

Note:

3. I/O1–I/O16 for SOJ/TSOP and I/O0–I/O15 for BGA packages.

Document #: 38-05132 Rev. *G

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