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MX27C256 Datasheet(PDF) 1 Page - Macronix International |
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MX27C256 Datasheet(HTML) 1 Page - Macronix International |
1 / 15 page SYMBOL PIN NAME A0~A14 Address Input Q0~Q7 Data Input/Output CE Chip Enable Input OE Output Enable Input VPP Program Supply Voltage NC No Internal Connection VCC Power Supply Pin (+5V) GND Ground Pin GENERAL DESCRIPTION The MX27C256 is a 5V only, 256K-bit, One-Time Programmable Read Only Memory. It is organized as 32K by 8 bits, operates from a single + 5volt supply, has a static standby mode, and features fast single address location programming. All programming signals are TTL levels, requiring a single pulse. For programming from outside the system, existing EPROM programmers FEATURES • 32K x 8 organization • Single +5V power supply • +12.5V programming voltage • Fast access time: 45/55/70/90/100/120/150 ns • Totally static operation • Completely TTL compatible • Operating current: 30mA • Standby current: 100uA • Package type: - 28 pin plastic DIP - 32 pin PLCC - 28 pin 8 x 13.4mm TSOP(I) 1 PIN CONFIGURATIONS PDIP may be used. The MX27C256 supports intelligent fast programming algorithm which can result in program- ming time of less than ten seconds. This EPROM is packaged in industry standard 28 pin dual-in-line packages, 32 lead PLCC, and 28 lead TSOP(I) packages. REV. 5.6, AUG. 26, 2003 P/N: PM0203 BLOCK DIAGRAM PIN DESCRIPTION PLCC 8 x 13.4mm 28-TSOP(I) MX27C256 256K-BIT [32K x 8] CMOS EPROM 1 4 5 9 13 14 17 20 21 25 29 32 30 A8 A9 A11 NC OE A10 CE Q7 Q6 A6 A5 A4 A3 A2 A1 A0 NC Q0 MX27C256 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VPP A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 GND 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC A14 A13 A8 A9 A11 OE A10 CE Q7 Q6 Q5 Q4 Q3 OE A11 A9 A8 A13 A14 VCC VPP A12 A7 A6 A5 A4 A3 22 23 24 25 26 27 28 1 2 3 4 5 6 7 A10 CE Q7 Q6 Q5 Q4 Q3 GND Q2 Q1 Q0 A0 A1 A2 21 20 19 18 17 16 15 14 13 12 11 10 9 8 MX27C256 CONTROL LOGIC OUTPUT BUFFERS Q0~Q7 CE OE A0~A14 ADDRESS INPUTS Y-DECODER X-DECODER Y-SELECT 256K BIT CELL MAXTRIX VCC GND VPP . . . . . . . . . . . . . . . . |
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