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