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).

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