at29bv020 ATMEL Corporation, at29bv020 Datasheet
at29bv020
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at29bv020 Summary of contents
Page 1
... The device can be operated with a single 2.7V to 3.6V supply. Reading data out of the device is similar to reading from an EPROM. Reprogramming the AT29BV020 is performed on a sector basis; 256 bytes of data are loaded into the device and then simultaneously programmed. During a reprogram cycle, the address locations and 256 bytes of data are captured at microprocessor speed and internally latched, freeing the address and data bus for other operations ...
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... Pin Configurations Pin Name A0 - A17 I/O0 - I/O7 NC 2.1 32-lead PLCC Top View 2.2 32-lead TSOP (Type 1) Top View AT29BV020 2 Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect A14 A13 A11 ...
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... Read The AT29BV020 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. This dual-line con- trol gives designers flexibility in preventing bus contention ...
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... DATA Polling The AT29BV020 features DATA polling to indicate the end of a program cycle. During a program cycle an attempted read of the last byte loaded will result in the complement of the loaded data on I/O7. Once the program cycle has been completed, true data is valid on all outputs and the next cycle may begin ...
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... These two 8K memory sections are referred to as boot blocks. Secure code which will bring up a system can be contained in a boot block. The AT29BV020 blocks are located in the first 8K bytes of memory and the last 8K bytes of memory. The boot block programming lockout feature can therefore support systems that boot from the lower addresses of memory or the higher addresses ...
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... A17 = V Manufacturer Code IL A17 = V Device Code IH, IL Min Max 1 1 Com. 40 Ind 0.6 2.0 0.45 2.4 AT29BV020-35 0°C - 70°C -40°C - 85°C 2.7V to 3.6V I/O D OUT D IN High Z High Z (4) (4) (4) (4) Units µA µA µA µ 0402E–FLASH–2/05 ...
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... ACC after the falling edge of CE without impact AT29BV020 AT29BV020-25 AT29BV020-35 Max Min Max Min 150 250 150 250 70 0 120 ACC ...
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... Input Test Waveforms and Measurement Level 12. Output Test Load 13. Pin Capacitance ( MHz 25°C Symbol Typ OUT Note: 1. These parameters are characterized and not 100% tested. AT29BV020 < Max Units Conditions OUT 0402E– ...
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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 15. AC Byte Load Waveforms 15.1 WE Controlled 15.2 CE Controlled 0402E–FLASH–2/05 (1)(2) AT29BV020 Min Max Units 100 0 0 200 100 10 200 ...
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... ADDRESS 2AAA LOAD DATA A0 TO ADDRESS 5555 WRITES ENABLED LOAD DATA TO ENTER DATA (3) SECTOR (256 BYTES) PROTECT STATE AT29BV020 10 (1) Notes: 1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex). 2. Data Protect state will be re-activated at end of program cycle. 3. 256 bytes of data MUST BE loaded. (2) Min ...
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... Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. 0402E–FLASH–2/05 (1)(2) (1) (1)(3) AT29BV020 Min Typ Max Min Typ ...
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... Manufacturer Code is read for Device Code is read for The device does not remain in identification mode if powered down. 4. The device returns to standard operation mode. 5. Manufacturer Code is 1F. The Device Code is BA. AT29BV020 12 25. Boot Block Lockout Feature Enable Algorithm (2)(3) ADDRESS 00000H Notes: 1. Data Format: I/O7 - I/O0 (Hex) ...
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... AT29BV020-15JI 32J AT29BV020-15TI 32T AT29BV020-25JC 32J AT29BV020-25TC 32T AT29BV020-25JI 32J AT29BV020-25TI 32T AT29BV020-35JC 32J AT29BV020-35TC 32T AT29BV020-35JI 32J AT29BV020-35TI 32T Ordering Code Package AT29BV020-12JU 32J AT29BV020-12TU 32T AT29BV020-15JU 32J AT29BV020-15TU 32T Package Type AT29BV020 Operation Range Commercial (0° to 70°C) Industrial (-40° ...
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... Allowable protrusion is .010"(0.254 mm) per side. Dimension D1 and E1 include mold mismatch and are measured at the extreme material condition at the upper or lower parting line. 3. Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R AT29BV020 14 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER E1 E ...
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... Orchard Parkway San Jose, CA 95131 R 0402E–FLASH–2/05 PIN SEATING PLANE A1 TITLE 32T, 32-lead ( Package) Plastic Thin Small Outline Package, Type I (TSOP) AT29BV020 0º ~ 8º GAGE PLANE COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A – ...
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... Atmel Corporation 2005. All rights reserved. Atmel SM Everywhere You Are and others are the trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...