AT29C040A-90TC ATMEL Corporation, AT29C040A-90TC Datasheet
AT29C040A-90TC
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AT29C040A-90TC Summary of contents
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... 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. ...
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... 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 ...
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... 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 ...
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... 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 ...
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... 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 ...
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... Manufacturer Code Min Max 10 10 Com. 100 Ind. 300 3 40 0.8 2.0 0.45 2.4 4.2 AT29C040A-20 0°C - 70°C -40°C - 85°C 5V ± 10% I/O D OUT D IN High Z High Z (4) (4) Device Code (4) (4) Device Code Units µA µA µA µ ...
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... ACC after the falling edge of CE without impact AT29C040A AT29C040A-15 AT29C040A-20 Max Min Max Min 120 150 120 150 ACC ...
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... 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 ...
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... 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. 0333K–FLASH–2/05 (1) AT29C040A Min Max Units 100 ns ns ...
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... 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 ...
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... 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. 0333K–FLASH–2/05 19. Software Data Protection Disable Algorithm (2) PAGE (256 BYTES) (1)(2)(3) AT29C040A (1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA ...
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... 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 ...
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... The device returns to standard operation mode. 5. Manufacturer Code is 1F. The Device Code is A4. 0333K–FLASH–2/05 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 ...
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... Standby 90 40 0.3 120 40 0.3 32J 32-lead, Plastic J-leaded Chip Carrier (PLCC) 32T 32-lead, Thin Small Outline Package (TSOP) AT29C040A 14 Ordering Code Package AT29C040A-90JC 32J AT29C040A-90TC 32T AT29C040A-90JI 32J AT29C040A-90TI 32T AT29C040A-12JC 32J AT29C040A-12TC 32T AT29C040A-12JI 32J AT29C040A-12TI 32T AT29C040A-15JC 32J AT29C040A-15TC 32T ...
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... Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0333K–FLASH–2/05 1.14(0.045) X 45˚ 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 – ...
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... 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 ...
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