CY7C1041CV33-12BAXE データシートの表示（PDF） - Cypress Semiconductor

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CY7C1041CV33-12BAXE

4-Mbit (256 K × 16) Static RAM

Cypress Semiconductor 

CY7C1041CV33 Automotive

Pin Definitions

Pin Name

SOJ, TSOP

Pin Number

BGA

Pin Number

I/O Type

Description

A0–A17

1–5, 18–27,

42–44

A3, A4, A5, B3,

B4, C3, C4, D4,

H2, H3, H4, H5,

G3, G4, F3, F4,

E4, D3

Input

Address Inputs. Used to select one of the address locations.

I/O0–I/O15

7–10,13–16, B1, C1, C2, D2, Input or Output Bidirectional Data I/O lines. Used as input or output lines depending

29–32, 35–38 E2, F2, F1, G1,

on operation.

B6, C6, C5, D5,

E5, F5, F6, G6

NC

28

A6, E3, G2, H1, No Connect No Connects. Not connected to the die.

H6

WE

17

G5

Input or Control Write Enable Input, Active LOW. When selected LOW, a write is

conducted. When deselected HIGH, a read is conducted.

CE

6

B5

Input or 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 or Control Byte Write Select Inputs, Active LOW. BHE controls I/O15 – I/O8,

BLE controls I/O7 – I/O0.

Input or 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, the I/O pins are tri-stated and act as input data pins.

VSS

12, 34

VCC

11, 33

D1, E6

D6, E1

Ground Ground for the Device. Connected to ground of the system.

Power Supply Power Supply Inputs to the Device.

Document Number: 001-67307 Rev. *A

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