AT29BV040A-20JU Atmel, AT29BV040A-20JU Datasheet
AT29BV040A-20JU
Specifications of AT29BV040A-20JU
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AT29BV040A-20JU 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 AT29BV040A is performed on a sector basis; 256 bytes of data are loaded into the device and then simultaneously programmed. ...
Page 2
... Pin Configurations Pin Name A0 - A18 I/O0 - I/O7 NC 2.1 32-lead TSOP (Type 1) Top View 2.2 32-lead PLCC Top View AT29BV040A 2 Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect A11 A13 4 29 A14 5 28 A17 VCC 8 25 A18 9 24 A16 ...
Page 3
... Device Operation 4.1 Read The AT29BV040A 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 ...
Page 4
... DATA Polling The AT29BV040A features DATA polling to indicate the end of a program cycle. During a pro- gram 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 ...
Page 5
... These two 16K memory sections are referred to as boot blocks. Secure code which will bring up a system can be contained in a boot block. The AT29BV040A blocks are located in the first 16K bytes of memory and the last 16K 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 ...
Page 6
... A18 = A18 = V Condition MHz mA 3.6V OUT 1 -100 µ 3. AT29BV040A-20 -40°C - 85°C 2. Manufacturer Code ( Device Code A18 = V Manufacturer Code IL A18 = V Device Code IH, IL Min Max 1 1 Com. 40 Ind 0.6 2.0 0.45 2.4 I/O D OUT D IN High Z ...
Page 7
... ACC specified from whichever occurs first ( pF This parameter is characterized and is not 100% tested. 0383J–FLASH–9/ after the address transition without impact on t ACC after the falling edge of CE without impact AT29BV040A AT29BV040A-20 Min Max Units 200 200 ACC after an address change ...
Page 8
... Input Test Waveforms and Measurement Level t R 12. Output Test Load 13. Pin Capacitance ( MHz 25°C Symbol Typ OUT Note: 1. These parameters are characterized and not 100% tested. AT29BV040A < Max 6 12 Units Conditions OUT 0383J–FLASH–9/08 ...
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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 0383J–FLASH–9/08 (1)(2) AT29BV040A Min Max Units 10 ns 100 200 ns 100 200 ns 9 ...
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... All bytes that are not loaded within the sector being programmed will be indeterminate. 18. Programming Algorithm 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. AT29BV040A 10 (1) LOAD DATA AA TO ADDRESS 5555 ...
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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. 0383J–FLASH–9/08 (1)(2) (1) (1)(3) AT29BV040A Min Typ Max Min Typ ...
Page 12
... 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 C4. AT29BV040A 12 25. Boot Block Lockout Feature Enable Algorithm (2)(3) ADDRESS 00000H Notes: 1. Data Format: I/O7 - I/O0 (Hex) ...
Page 13
... Green Package Option (Pb/Halide-free) I (mA ACC (ns) Active Standby 200 15 0.05 32J 32-lead, Plastic J-leaded Chip Carrier (PLCC) 32T 32-lead, Thin Small Outline Package (TSOP) 0383J–FLASH–9/08 Ordering Code AT29BV040A-20JU AT29BV040A-20TU Package Type AT29BV040A Package Operation Range 32J Industrial 32T (-40 to 85C) 13 ...
Page 14
... Dimensions D1 and E1 do not include mold protrusion. 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 AT29BV040A 14 1.14(0.045 PIN NO. 1 IDENTIFIER ...
Page 15
... Lead coplanarity is 0.10 mm maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0383J–FLASH–9/08 PIN SEATING PLANE A1 TITLE 32T, 32-lead ( Package) Plastic Thin Small Outline Package, Type I (TSOP) AT29BV040A 0º ~ 8º GAGE PLANE COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A – – ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...