AT29LV256-20PI ATMEL [ATMEL Corporation], AT29LV256-20PI Datasheet
AT29LV256-20PI
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AT29LV256-20PI Summary of contents
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... CMOS and TTL Compatible Inputs and Outputs Commercial and Industrial Temperature Ranges Description The AT29LV256 is a 3-volt-only in-system Flash Programmable Erasable Read Only Memory (PEROM). Its 256K of memory is organized as 32,768 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 200 ns with power dissipation of just 54 mW over the commercial temperature range ...
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... Description (Continued) To allow for simple in-system reprogrammability, the AT29LV256 does not require high input voltages for pro- gramming. Three-volt-only commands determine the op- eration of the device. Reading data out of the device is similar to reading from an EPROM. Reprogramming the AT29LV256 is performed on a sector basis; 64-bytes of data are loaded into the device and then simultaneously programmed ...
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... Once a programming operation has been initiated, and for the duration of t read operation will effectively be a polling operation. HARDWARE DATA PROTECTION: protect against inadvertent programs to the AT29LV256 in the following ways: (a) V sense— (typical), the program function is inhibited. ( delay— ...
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... I/O CC Com 0. Ind 2. MHz mA 3.6V OUT 1 -100 3. AT29LV256-25 0°C - 70°C -40°C - 85°C 0.3V 3.3V 0.3V I OUT High Z High Z ( Manufacturer Code IL ( (4) Device Code ...
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... whichever occurs first pF This parameter is characterized and is not 100% tested after an address OE (1) Typ Max AT29LV256 AT29LV256-20 AT29LV256-25 Min Max Min Max 200 250 200 250 0 100 0 120 Output Test Load ...
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... 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 AT29LV256 4-38 Min 10 100 0 0 200 100 10 200 (1, 2) Max Units ...
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... All bytes that are not loaded within the sector being programmed will be indeterminate. (1) Notes for software program code: WRITES ENABLED 1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex). ENTER DATA 2. Data Protect state will be re-activated at end of program cycle. (2) PROTECT STATE 3. 64-bytes of data AT29LV256 Max Units 150 s ns loaded ...
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... OE High Pulse OEHP t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. 2. See t spec in AC Read Characteristics. OE (1, 3) Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. AT29LV256 4-40 (1) Min 10 10 (2) 0 (1) Min Typ 10 10 ...
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... The device returns to standard operation mode. 5. Manufacturer Code: 1F Device Code: BC Software Product Identification Exit ENTER PRODUCT IDENTIFICATION ( MODE ; IL AT29LV256 (1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA F0 TO ADDRESS 5555 PAUSE 20 mS EXIT PRODUCT ...
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... Ordering Code Package AT29LV256-15JC 32J AT29LV256-15TC 28T AT29LV256-15JI 32J AT29LV256-15TI 28T AT29LV256-20JC 32J AT29LV256-20PC 28P6 AT29LV256-20TC 28T AT29LV256-20JI 32J AT29LV256-20PI 28P6 AT29LV256-25JC 32J AT29LV256-25PC 28P6 AT29LV256-25TC 28T AT29LV256-25JI 32J AT29LV256-25PI 28P6 Package Type Operation Range Commercial ( Industrial (- ...