CY7C1041CV33-12BAXE Ver la hoja de datos (PDF) - Cypress Semiconductor

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CY7C1041CV33-12BAXE

4-Mbit (256 K × 16) Static RAM

Cypress Semiconductor 

CY7C1041CV33 Automotive

4-Mbit (256 K × 16) Static RAM

4-Mbit (256 K × 16) Static RAM

Features

■ Temperature ranges

❐ Automotive-A: –40 °C to 85 °C

❐ Automotive-E: –40 °C to 125 °C

■ Pin and function compatible with CY7C1041BNV33

■ High speed

❐ tAA = 10 ns (Automotive-A)

❐ tAA = 12 ns (Automotive-E)

■ Low active power

❐ 432 mW (max)

■ 2.0 V data retention

■ Automatic power down when deselected

■ TTL-compatible inputs and outputs

■ Easy memory expansion with CE and OE features

■ Available in Pb-free and non Pb-free 44-pin 400 Mil SOJ, 44-pin

TSOP II and 48-ball FBGA packages

Functional Description

The CY7C1041CV33 Automotive is a high performance CMOS

static RAM organized as 262,144 words by 16 bits.

To write to the device, take Chip Enable (CE) and Write Enable

(WE) inputs LOW. If Byte Low Enable (BLE) is LOW, then data

from I/O pins (I/O0 through I/O7), is written into the location

specified on the address pins (A0 through A17). If Byte High

Enable (BHE) is LOW, then data from I/O pins (I/O8 through

I/O15) is written into the location specified on the address pins

(A0 through A17).

To read from the device, take Chip Enable (CE) and Output

Enable (OE) LOW while forcing the Write Enable (WE) HIGH. If

Byte Low Enable (BLE) is LOW, then data from the memory

location specified by the address pins appear on I/O0 to I/O7. If

Byte High Enable (BHE) is LOW, then data from memory

appears on I/O8 to I/O15. For more information, see the Truth

Table on page 10 for a complete description of Read and Write

modes.

The input and output pins (I/O0 through I/O15) are placed in a

high impedance state when the device is deselected (CE HIGH),

the outputs are disabled (OE HIGH), the BHE and BLE are

disabled (BHE, BLE HIGH), or during a write operation (CE LOW

and WE LOW).

Logic Block Diagram

INPUT BUFFER

AA01

A2

A3

A4

A5

256K x 16

RAM Array

A6

A7

A8

I/O0–I/O7

I/O8–I/O15

COLUMN DECODER

BHE

WE

CE

OE

BLE

Cypress Semiconductor Corporation • 198 Champion Court

Document Number: 001-67307 Rev. *A

• San Jose, CA 95134-1709 • 408-943-2600

Revised May 24, 2011

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