Functional description

The AS7C4098 and AS7C34098 are high-performance CMOS 4,194,304-bit Static Random Access Memory (SRAM) devices organized as 262,144 words × 16 bits. They are designed for memory applications where fast data access, low power, and simple interfacing are desired.

Equal address access and cycle times (tAA, tRC, tWC) of 10/12/15/20 ns with output enable access times (tOE) of 5/6/7/8 ns are ideal for high-performance applications. The chip enable input CE permits easy memory expansion with multiple-bank memory systems.

Features

• AS7C4098 (5V version)

• AS7C34098 (3.3V version)

• Industrial and commercial temperature

• Organization: 262,144 words × 16 bits

• Center power and ground pins

• High speed

- 10/12/15/20 ns address access time

- 5/6/7/8 ns output enable access time

• Low power consumption: ACTIVE

- 1375 mW (AS7C4098)/max @ 12 ns

- 576 mW (AS7C34098)/max @ 10 ns

• Low power consumption: STANDBY

- 110 mW (AS7C4098)/max CMOS

- 72 mW (AS7C34098)/max CMOS

• Individual byte read/write controls

• Easy memory expansion with CE, OE inputs

• TTL- and CMOS-compatible, three-state I/O

• 44-pin JEDEC standard packages

- 400-mil SOJ

- TSOP 2

• ESD protection ≥ 2000 volts

• Latch-up current ≥ 100 mA