AT29C040A-12PI Atmel, AT29C040A-12PI Datasheet
AT29C040A-12PI
Specifications of AT29C040A-12PI
Available stocks
Related parts for AT29C040A-12PI
AT29C040A-12PI Summary of contents
Page 1
... Green (Pb/Halide-free) Packaging Option 1. Description The AT29C040A is a 5-volt only in-system Flash Programmable and Erasable Read Only Memory (PEROM). Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS EEPROM technology, the device offers access times ns, and a low 220 mW power dissipation. ...
Page 2
... Pin Configurations Pin Name A0 - A18 I/O0 - I/O7 NC 2.1 32-lead PLCC Top View 2.2 32-lead TSOP Top View – Type 1 AT29C040A 2 Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect I/ A11 A13 4 A14 5 A17 VCC 8 A18 9 A16 10 A15 11 A12 12 A7 ...
Page 3
... Device Operation 4.1 Read The AT29C040A 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 AT29C040A 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 AT29C040A 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 OUT -400 µ -100 µ 4. AT29C040A-90 AT29C040A-12 -40C - 85C -40C - 85C 5V 10% 5V Manufacturer Code ( Device Code Manufacturer Code Device Code IH Min Max 10 10 300 3 40 0.8 2.0 0.45 2.4 4.2 I/O ...
Page 7
... whichever occurs first ( pF This parameter is characterized and is not 100% tested. 0333L–FLASH–9/08 AT29C040A-90 Min (1)(2)(3)( after the address transition without impact on t ACC after the falling edge of CE without impact AT29C040A AT29C040A-12 Max Min Max 90 120 90 120 ACC ...
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. This parameter is characterized and is not 100% tested. AT29C040A < Max 6 12 Units Conditions OUT 0333L–FLASH–9/08 ...
Page 9
... 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 Note complete sector (256 bytes) should be loaded using the waveforms shown in these byte load waveform diagrams. 0333L–FLASH–9/08 (1) AT29C040A Min Max Units 100 ...
Page 10
... Program Cycle Waveforms Notes through A18 must specify the sector address during each high to low transition of WE (or CE must be high only when WE and CE are both low. 3. All bytes that are not loaded within the sector being programmed will be indeterminate. AT29C040A 10 Min 100 (1)(2)(3) ...
Page 11
... OE must be high when WE and CE are both low. 3. All bytes that are not loaded within the sector being programmed will be indeterminate. 0333L–FLASH–9/08 19. Software Data Protection Disable Algorithm (2) SECTOR (256 BYTES) (1)(2)(3) AT29C040A (1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA ...
Page 12
... AC Read Characteristics. OE 24. 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. AT29C040A 12 (1) (1) (1)(2)(3) Min Typ Max ...
Page 13
... The device returns to standard operation mode. 5. Manufacturer Code is 1F. The Device Code is A4. 0333L–FLASH–9/08 27. Boot Block Lockout Feature Enable Algorithm (2)(3)(5) Notes: ( AT29C040A LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 80 TO ADDRESS 5555 LOAD DATA AA TO ...
Page 14
... Plastic J-leaded Chip Carrier (PLCC) 32T 32-lead, Thin Small Outline Package (TSOP) AT29C040A 14 Ordering Code Package AT29C040A-90JU 32J AT29C040A-90TU 32T AT29C040A-12JU 32J AT29C040A-12TU 32T Package Type Operation Range Industrial (-40 to 85C) 0333L–FLASH–9/08 ...
Page 15
... Lead coplanarity is 0.004 (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0333L–FLASH–9/08 1.14(0.045 PIN NO. 1 IDENTIFIER TITLE 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) AT29C040A 0.318(0.0125) 0.191(0.0075 COMMON DIMENSIONS (Unit of Measure = mm) MIN NOM MAX SYMBOL A 3.175 – ...
Page 16
... E Notes: 1. This package conforms to JEDEC reference MO-142, Variation BD. 2. Dimensions D1 and E do not include mold protrusion. Allowable protrusion 0.15 mm per side and 0.25 mm per side. 3. Lead coplanarity is 0.10 mm maximum. 2325 Orchard Parkway San Jose, CA 95131 R AT29C040A 16 PIN SEATING PLANE A1 TITLE ...
Page 17
... 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 ...