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CY62128V

Cypress Semiconductor
Part Number CY62128V
Manufacturer Cypress Semiconductor
Description 128K x 8 Static RAM
Published Mar 26, 2005
Detailed Description amily CY62128V Family 128K x 8 Static RAM Features • Low voltage range: — 2.7V–3.6V (CY62128V) — 2.3V–2.7V (CY62128V25...
Datasheet PDF File CY62128V PDF File

CY62128V
CY62128V

Overview
amily CY62128V Family 128K x 8 Static RAM Features • Low voltage range: — 2.
7V–3.
6V (CY62128V) — 2.
3V–2.
7V (CY62128V25) • • • • • — 1.
6V–2.
0V (CY62128V18) Low active power and standby power Easy memory expansion with CE and OE features TTL-compatible inputs and outputs Automatic power-down when deselected CMOS for optimum speed/power LOW Output Enable (OE) and three-state drivers.
These devices have an automatic power-down feature, reducing the power consumption by over 99% when deselected.
The CY62128V family is available in the standard 450-mil-wide SOIC, 32-lead TSOP-I, and STSOP packages.
Writing to the device is accomplished by taking Chip Enable one (CE1) and Write Enable (WE) inputs LOW and the Chip Enable two (CE2) input HIGH.
Data on the eight I/O pins (I/O0 through I/O 7) is then written into the location specified on the address pins (A 0 through A16).
Reading from the device is accomplished by taking Chip Enable one (CE1) and Output Enable (OE) LOW while forcing Write Enable (WE) and Chip Enable two (CE2) HIGH.
Under these conditions, the contents of the memory location specified by the address pins will appear on the I/O pins.
The eight input/output pins (I/O0 through I/O7) are placed in a high-impedance state when the device is deselected (CE1 HIGH or CE 2 LOW), the outputs are disabled (OE HIGH), or during a write operation (CE1 LOW, CE2 HIGH, and WE LOW).
Functional Description The CY62128V family is composed of three high-performance CMOS static RAMs organized as 131,072 words by 8 bits.
Easy memory expansion is provided by an active LOW Chip Enable (CE1), an active HIGH Chip Enable (CE 2), an active Logic Block Diagram Pin Configurations Top View SOIC NC A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC A15 CE2 WE A13 A8 A9 A11 OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3 INPUT BUFFER I/O0 I/O1 A0 A1 A2 A3 A4 A5 A6 A7 A8 ROW DECODER SENSE AMPS I/O2 I/O...


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