AT49F020 ATMEL Corporation, AT49F020 Datasheet
AT49F020
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AT49F020 Summary of contents
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... Typical 10,000 Write Cycles Description The AT49F020 is a 5-volt only in-system Flash Memory. Its 2 megabits of memory is organized as 262,144 words by 8 bits. Manufactured with Atmel’s advanced nonvola- tile CMOS technology, the device offers access times with power dissipation of just 275 mW over the commercial temperature range. When the device is dese- lected, the CMOS standby current is less than 100 A ...
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... The typical number of program and erase cycles is in excess of 10,000 cycles. Block Diagram Device Operation READ: The AT49F020 is accessed like an EPROM. When CE and OE are low and WE is high, the data stored at the memory location determined by the address pins is asserted on the outputs. The outputs are put in the high impedance state whenever high ...
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... Respect to Ground .............................-0. Voltage on OE with Respect to Ground ...................................-0.6V to +13.5V TOGGLE BIT: In addition to DATA polling the AT49F020 provides another method for determining the end of a pro- gram or erase cycle. During a program or erase operation, successive attempts to read data from the device will result in I/O6 toggling between one and zero ...
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... V I/O CC Com 0. Ind 2. MHz OUT -400 -100 4. AT49F020-15 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C 5V 10% 5V 10 OUT High Z High Z ( Manufacturer Code ...
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... ACC after the falling edge of CE without impact Output Test Load Max 6 12 AT49F020-12 AT49F020-15 Min Max Min Max 120 150 120 150 ...
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... CS t Chip Select Hold Time CH t Write Pulse Width ( Data Set-up Time Data, OE Hold Time DH OEH t Write Pulse Width High WPH AC Byte Load Waveforms WE Controlled CE Controlled AT49F020 6 Min Max Units ...
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Program Cycle Characteristics Symbol Parameter t Byte Programming Time BP t Address Set-up Time AS t Address Hold Time AH t Data Set-up Time DS t Data Hold Time DH t Write Pulse Width WP t Write Pulse Width High ...
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... Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. The t input(s). 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. AT49F020 8 (1) (1) Min Typ Max Min ...
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Software Product Identification Entry LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 90 TO ADDRESS 5555 ENTER PRODUCT IDENTIFICATION (2)(3)(5) MODE Software Product Identification Exit LOAD DATA ADDRESS 5555 LOAD DATA ...
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... Note: 1. The AT49F020 has an optional boot block feature. The part number shown in the Ordering Information table is for devices with the boot block in the lower address range (i.e., 00000H to 01FFFH). Users requiring the boot block the higher address range should contact Atmel. ...
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Packaging Information 32J, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC OUTLINE MS-016 AE .045(1.14) X 45˚ PIN NO. 1 IDENTIFY .553(14.0) .547(13.9) .032(.813) .595(15.1) .026(.660) .585(14.9) .050(1.27) TYP .300(7.62) REF .430(10.9) .390(9.90) AT CONTACT POINTS ...
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... Marks bearing and/or are registered trademarks and trademarks of Atmel Corporation. Terms and product names in this document may be trademarks of others. Atmel Operations Atmel Colorado Springs 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 ...