描述 Description

The TC554161FTL/TRL is a 4,194,304 bit CMOS static random access memory organized as 262,144 words by 16 bits and

operated from a single 5V power supply. Advanced circuit techniques provide both high speed and low power features with an

operating current of 10mA/MHz (typ.) and a minimum cycle time of 70ns. When CE is a logical high, the device is placed in a low

power standby mode in which the standby current is 60μA (max.). The TC554161FTL/TRL has two control inputs. A chip enable

input (CE) allows for device selection and data retention control, while an output enable input (OE) provides fast memory access.

Byte access is supported by upper and lower byte controls. The TC554161FTL/TRL is suitable for use in microprocessor systems

where high speed, low power, and battery backup are required. The TC554161FTL/TRL is offered in a 54-pin thin small outline

plastic package (forward type, reverse type).

特性 Features

? Low power dissipation:

Standby current:

Single 5V power supply

? Access time (max.)

Access Time

CE Access Time

OE Access Time

55mW/MHz (typ.)

8uA (max.) at Ta = 25°C

-70L

70ns

70ns

35ns

? Power down feature:

? Data retention supply voltage:

? Inputs and outputs TTL compatible

? Package

TC554161FTL

TC554161TRL

TC554161FTL/TRL

-85L

85ns

85ns

45ns

2.0-5.5V

: TSOP54-P-400

: TSOP54-P-400A

-10L

100ns

100ns

50ns