M27C64A STMICROELECTRONICS [STMicroelectronics], M27C64A Datasheet
M27C64A
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M27C64A Summary of contents
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... ELECTRONIC SIGNATURE for AUTOMATED PROGRAMMING HIGH SPEED PROGRAMMING (less than 1 minute) DESCRIPTION The M27C64A is a high speed 65,536 bit UV eras- able and electrically programmable memory EPROM ideally suited for microprocessor systems requiring large programs organized as 8,192 by 8 bits. The 28 pin Window Ceramic Frit-Seal Dual-in-Line ...
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... Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC voltage on Output is V +0.5V with possible overshoot DEVICE OPERATION The modes of operation of the M27C64A are listed in the Operating Modes table. A single 5V power supply is required in the read mode. All inputs are TTL levels except for V and 12V on A9 for Elec- PP tronic Signature ...
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... Standby Mode The M27C64A has a standby mode which reduces the active current from 30mA to 100 A. The M27C64A is placed in the standby mode by apply- ing a CMOS high signal to the E input. When in the standby mode, the outputs are in a high impedance state, independent of the G input. ...
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... M27C64A AC MEASUREMENT CONDITIONS Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Ref. Voltages Note that Output Hi-Z is defined as the point where data is no longer driven. Figure 3. AC Testing Input Output Waveforms 2.4V 0.4V (1) Table 5. Capacitance ( MHz ) A Symbol Parameter ...
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... 150 200 150 200 and removed simultaneously with or after V PP M27C64A Min Max Unit 100 A 100 A 0 0.4 V 2.4 V – 0.7V V PP. ...
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... M27C64A Table 8. Programming Mode DC Characteristics ( 0.25V Symbol Parameter I Input Leakage Current LI I Supply Current CC I Program Current PP V Input Low Voltage IL V Input High Voltage IH V Output Low Voltage OL V Output High Voltage TTL Voltage ID Note ...
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... Programming of multiple M27C64A in parallel with different data is also easily accomplished. Except for E, all like inputs including G of the parallel AI01167 M27C64A may be common. A TTL low level pulse applied to a M27C64A E input, with P low and V M27C64A tGHQZ tGHAX AI00779 input is at 12.5V, and pp 0 ...
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... M27C64A in about 3 years, while it would take approximately 1 week to cause erasure when exposed to direct sunlight. If the M27C64A exposed to these types of lighting conditions for extended periods of time suggested that opaque labels be put over the M27C64Awindow to prevent unintentional era ambient sure ...
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... M27C64A inches Min Max 0.225 0.020 0.070 0.154 0.200 0.016 0.022 0.046 0.056 0.009 0.012 1.500 0.606 0.622 0.514 0.526 – – – – 0.637 0.721 0.125 ...
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... M27C64A PLCC32 - 32 lead Plastic Leaded Chip Carrier - rectangular mm Symb Typ A 2.54 A1 1.52 B 0.33 B1 0.66 D 12.32 D1 11.35 D2 9.91 E 14.86 E1 13.89 E2 12. PLCC32 PLCC Drawing scale 10/11 Min Max Typ 3.56 2.41 0.53 0.81 12.57 11.56 10.92 15.11 14.10 13.46 – – 0.050 0. D2/E2 B inches Min Max 0.100 0.140 0.060 0.095 ...
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... SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1995 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. M27C64A 11/11 ...