Description
The TC51864PL is a 512K bit high speed CMOS pseudo static RAM organized as 65,536 words by 8 bits. The TC51864PL utilizes
a one transistor dynamic memory cell with CMOS peripheral circuitry to provide high capacity, high speed and low power storage. The
TC51864PL operates from a single 5V power supply. Refreshing is supported by a refresh (RFSH) input which enables two types of
refreshing - auto refresh and self refresh. The TC51864PL 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 RW thus simplifying the microprocessor interface.
The TC51864PL is available in a 32-pin, 0.6 inch width plastic DIP, and a small outline plastic flat package.

Features
• Organization: 65,536 words x 8 bits
• Single 5V power supply
• Fast access time
CEA CE Access Time
OE Access Time
toEA
tac Cycle Time
Power Dissipation
Self Refresh Current
TC51864 Family
-10
100ns
40ns
160ns
330mW
-85
85ns
35ns
135ns
385mW
100μA
Auto refresh is supported by an internal refresh address
counter
Self refresh is supported by an internal timer
Inputs and outputs TTL compatible
Refresh: 256 refresh cycles/4ms
Package
TC51864PL: DIP32-P-600
- TC51864FL: SOP32-P-525