TC55V040AFT

TC55V040AFT-55,-70 TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS 524,288-WORD BY 8-BIT FULL CMOS STATIC RAM DESCRIPTION The TC55V040AFT is a 4,194,304-bit static random access memory (SRAM) organized as 524,288 words by 8 bits. Fabricated using Toshiba's CMOS Silicon gate process technology, this device operates from a single 2.3 to 3.6 V power supply. Advanced circuit technology provides both high speed and low power at an operating current of 3 mA/MHz and a minimum cycle time of 55 ns. It is automatically placed in low-power mode at 0.5 µA standby current (at VDD = 3 V, Ta = 25°C, maximum) when chip enable ( CE1 ) is asserted high or (CE2) is asserted low. There are three control inputs. CE1 and CE2 are used to select the device and for data retention control, and output enable ( OE ) provides fast memory access. This device is well suited to various microprocessor system applications where high speed, low power and battery backup are required. And, with a guaranteed operating extreme temperature range of −40° to 85°C, the TC55V040AFT can be used in environments exhibiting extreme temperature conditions. The TC55V040AFT is available in normal and reverse pinout plastic 40-pin thin-small-outline package (TSOP). FEATURES Low-power dissipation Operating: 10.8 mW/MHz (typical) Single power supply voltage of 2.3 to 3.6 V Power down features using CE1 and CE2 Data retention supply voltage of 1.5 to 3.6 V Direct TTL compatibility for all inputs and outpu...