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DESCRIPTION

The

TC5518CP/CF

is a 16384-bit high speed and

low power sully static random access memory orga-

nized as 2048 words by a 8 bits using CMOS tech-

nology, and operates from a single 5 volt supply.

The TC5518CP/CF has two chip enable inputs, CE 1

and CE2, which are used for device selection and

can be used in order to achieve minimum standby

current mode easily for battery back up. Also the

high speed and low power characteristics which

maximum access time is 150ns, 200ns and maxi-

mum operating current is 5mA/MHz are achieved.

Thus the TC5518CP/CF is most suitable for use in

low power applications where battery operation or

battery back up for nonvolatility are required.

Furthermore the TC5518CPL/CFL guaranteed a

standby current epual to or less than 1 μA at 60°C.

ambient temperature available. And the TC5518CP/

CPL is pin compatible with 2716 type EPROM. This

means that the TC5518CP/CPL and EPROM can be

interchanged in the same socket, and the flexibility in

the definition of the quantity of RAM versus EPROM

allows the wide application in microcomputer system.

FEATURES

Low Power Dissipation

5mA/Max.

0.2μA(MAX.)

at Ta=25°C

1.0μA(MAX.) at Ta= 60°C

Operating

Standby

Standby

5V Single Power Supply

Low Voltage Operation : Von=3V

tco1, 21μs(MAX.) Ta= 60°C

Wide Temperature Operation

Ta=-40-85°C

Fully Static Operation

Data Retention Voltage: 2.0V-5.5V

Two Chip Enables (CE1, CE2)

Simple Memory Expansion and Battery Back Up

Access Time

Address Access

Time (MAX.)

CE1 Access Time

(MAX.)

CE2 Access Time

(MAX.)

TC5518CP-15 CPL-15 TC5518CP-20/CPL-20

TC5518CF-15-CFL-15 TC5518CF-20/CFL-20

150ns

200ns

150ns

150ns

200ns

200ns

Directly TTL Compatible: All Inputs and Outputs

24 Pin Standard Plastic Package: TC5518CP

24 Pin Flat Package

: TC5518CF