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TC55V4000ST-85 Datenblatt(PDF) 1 Page - Toshiba Semiconductor |
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TC55V4000ST-85 Datenblatt(HTML) 1 Page - Toshiba Semiconductor |
1 / 10 page TC55V4000ST-70,-85 2001-11-30 1/10 TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS 524,288-WORD BY 8-BIT STATIC RAM DESCRIPTION The TC55V4000ST 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 70 ns. It is automatically placed in low-power mode at 0.5 µA standby current (at VDD = 3 V, Ta = 25°C) when chip enable ( CE ) is asserted high. There are two control inputs. CE is 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. The TC55V4000ST is available in a normal pinout plastic 32-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 CE • Data retention supply voltage of 1.5 to 3.6 V • Direct TTL compatibility for all inputs and outputs • Standby Current (maximum): 3.6 V 7 µA 3.0 V 5 µA PIN ASSIGNMENT (TOP VIEW) 32 PIN TSOP PIN NAMES A0~A18 Address Inputs R/W Read/Write Control OE Output Enable CE Chip Enable I/O1~I/O8 Data Inputs/Outputs VDD Power GND Ground Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name A11 A9 A8 A13 R/W A17 A15 VDD A18 A16 A14 A12 A7 A6 A5 A4 Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 42 Pin Name A3 A2 A1 A0 I/O1 I/O2 I/O3 GND I/O4 I/O5 I/O6 I/O7 I/O8 CE A10 OE • Access Times (maximum): TC55V4000ST -70 -85 Access Time 70 ns 85 ns CE Access Time 70 ns 85 ns OE Access Time 35 ns 45 ns • Package: TSOPⅠ32-P-0.50 (ST) (Weight: 0.24 g typ) (Normal pinout) 16 1 17 32 |
Ähnliche Teilenummer - TC55V4000ST-85 |
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Ähnliche Beschreibung - TC55V4000ST-85 |
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