27c256 Microchip Technology Inc., 27c256 Datasheet
27c256
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27c256 Summary of contents
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... Automotive: -40°C to +125°C DESCRIPTION The Microchip Technology Inc. 27C256 is a CMOS 256K bit electrically Programmable Read Only Memory (EPROM). The device is organized as 32K words by 8 bits (32K bytes). Accessing individual bytes from an address transition or from power-up (chip enable pin going low) is accomplished in less than 90 ns ...
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... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V and input voltages w.r.t. V ........ -0.6V to +7.25V voltage w.r.t. V during PP SS programming ....................................... -0.6V to +14.0V Voltage on A9 w.r.t. V ...................... -0.6V to +13.5V SS Output voltage w.r.t. V ................-0. Storage temperature ..........................-65°C to +150°C Ambient temp. with power applied .....-65°C to +125°C *Notice: Stresses above those listed under “Maximum Ratings” ...
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... TABLE 1-3: READ OPERATION AC CHARACTERISTICS AC Testing Waveform: Output Load: Input Rise and Fall Times Ambient Temperature: 27C256-90* 27C256-10* 27C256-12 27C256-15 27C256-20 Parameter Sym Min Max Address to Output t — 90 ACC Delay CE to Output Delay t — Output Delay t — O/P ...
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... TABLE 1-4: PROGRAMMING DC CHARACTERISTICS Parameter Status Input Voltages Logic”1” Logic”0” Input Leakage — Output Voltages Logic”1” Logic”0” V Current, program & verify — Current, program — Product Identification — Note 1: V must be applied simultaneously or before V ...
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... For Read operations, if the addresses are stable, the address access time ( output (t after a delay from the falling edge 27C256 Verify t AH Data Out Valid OUT OUT X High Z ...
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... Standby Mode The standby mode is defined when the CE pin is high (VIH) and a program mode is not defined. When these conditions are met, the supply current will drop from 100 A. 1.4 Output Enable This feature eliminates bus contention in multiple bus microprocessor systems and the outputs high impedance when the following condition is true: • ...
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... 13.0 ±0.25V PP ADDR = First Location 13. Program one 100 Increment X Verify Byte Fail Last Address? No Increment Address 4.5V, 5. All Yes bytes Device = original Passed data? 27C256 s pulse Pass Yes Device Failed Yes No Device Failed DS11001N-page 7 ...
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... Product Identification System To order or to obtain information (e.g., on pricing or delivery), please use listed part numbers, and refer to factory or listed sales offices. 27C256 – /TS Package: Temperature Range: Access Time: Device DS11001N-page Plastic Leaded Chip Carrier P = Plastic DIP (Mil 600 Plastic SOIC (Mil 300) Blank = 0° ...
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... Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. 2004 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC ...
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... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04 2004 Microchip Technology Inc. ...