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UT621024SC-55L Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 12 page UTRON UT621024 Rev. 1.5 128K X 8 BIT LOW POWER CMOS SRAM ________________________________________________________________________________________________ UTRON TECHNOLOGY INC. P80036 1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C. TEL: 886-3-5777882 FAX: 886-3-5777919 1 FEATURES Access time : 35/55/70ns (max.) Low power consumption : Operating : 60/50/40 mA (typical) Standby : 2 µA (typical) L-version 1 µA (typical) LL-version Single 5V power supply All inputs and outputs TTL compatible Fully static operation Three state outputs Data retention voltage : 2V (min.) Package : 32-pin 600 mil PDIP 32-pin 450 mil SOP 32-pin 8mmx20mm TSOP-1 32-pin 8mmx13.4mm STSOP FUNCTIONAL BLOCK DIAGRAM COLUMNI/O COLUMNDECODER ROW DECODER I/O CONTROL LOGIC CONTROL A15 I/O1 VSS VCC WE OE 1 CE I/O8 . . . ... . . . A13 A7 A6 A5 A4 A8 A11 A2 A1 A0 A10 ... ... MEMORYARRAY 1024 ROWS×1024 COLUMNS A9 A14 A12 A16 A3 CE2 PIN DESCRIPTION SYMBOL DESCRIPTION A0 - A16 Address Inputs I/O1 - I/O8 Data Inputs/Outputs 1 CE ,CE2 Chip enable 1,2 Inputs WE Write Enable Input OE Output Enable Input VCC Power Supply VSS Ground NC No Connection GENERAL DESCRIPTION The UT621024 is a 1,048,576-bit low power CMOS static random access memory organized as 131,072 words by 8 bits. It is fabricated using high performance, high reliability CMOS technology. The UT621024 is designed for low power application. It is particularly well suited for battery back-up nonvolatile memory application. The UT621024 operates from a single 5V power supply and all inputs and outputs are fully TTL compatible. PIN CONFIGURATION A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 CE2 A8 A9 A11 A10 I/O8 I/O7 I/O6 I/O5 I/O4 I/O3 Vss PDIP / SOP 28 14 13 12 11 10 9 8 7 6 5 4 3 2 1 17 16 15 20 19 18 22 23 24 25 26 27 21 1 CE WE OE A13 A14 NC A16 Vcc A15 29 30 31 32 TSOP-I/STSOP I/O4 A11 A9 A8 A13 I/O3 A10 A14 A12 A7 A6 A5 Vcc I/O8 I/O7 I/O6 I/O5 Vss I/O2 I/O1 A0 A1 A2 A4 A3 UT621024 28 14 13 12 11 10 9 8 7 6 5 4 3 2 1 17 16 15 20 19 18 22 23 24 25 26 27 21 WE OE 1 CE CE2 NC A15 A16 32 31 30 29 |
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