Description

The TC518512Pl is a 4M bit high speed CMOS pseudo static RAM organized as 524,288 words by 8 bits. The TC518512Pl utilizes

a one transistor dynamic memory cell with CMOS peripheral circuitry to provide high capacity, high speed and low power storage. The

TC518512PI operates from a single 5V power supply. Refreshing is supported by a refresh (OE/RFSH) input which enables two

types of refreshing - auto refresh and self refresh. The TC518512PI features a static RAM-like interface with a write cycle in which

the input data is written into the memory cell at the rising edge of R/W thus simplifying the microprocessor interface. The

TC518512PI is guaranteed over an operating temperature range of -40 - 85°C.

The TC518512PI is available in a 32-pin, 0.6 inch width plastic DIP and a small outline plastic flat package.

Features

• Organization: 524,288 words x 8 bits

• Single 5V power supply

Fast access time

ICEA CE Access Time

toEA OE Access Time

tac Cycle Time

Power Dissipation

Self Refresh Current

TC518512PI Family

-10

100ns

40ns

160ns

275mW

-80

80ns

30ns

130ns

330mW

300μA

• Auto refresh is supported by an internal refresh address

counter

• Self refresh is supported by ar internal timer

• Wide operating temperature: -40~85°C

• Inputs and outputs TTL compatible

• Refresh: 2048 refresh cycles/32ms

• Package

- TC518512PI: DIP32-P-600

- TC518512FI: SOP32-P-525