AT29C020-70PC Atmel, AT29C020-70PC Datasheet
AT29C020-70PC
Specifications of AT29C020-70PC
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AT29C020-70PC Summary of contents
Page 1
... Commercial and Industrial Temperature Ranges Description The AT29C020 is a 5-volt-only in-system Flash programmable and erasable read-only memory (PEROM). Its 2 megabits of memory is organized as 262,144 bytes. Manu- factured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times with power dissipation of just 220 mW over the commercial tem- perature range. When the device is deselected, the CMOS standby current is less than 100 µ ...
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... Block Diagram Device READ: The AT29C020 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 Operation the outputs. The outputs are put in the high impedance state whenever high. This dual-line control gives designers flexibility in preventing bus contention ...
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... SOFTWARE DATA PROTECTION: able on the AT29C020. Once the software protection is enabled a software algorithm must be issued to the device before a program may be performed. The software protection feature may be enabled or disabled by the user; when shipped from Atmel, the software data protection feature is disabled. To enable the software data protection, a series of three program com- mands to specific addresses with specific data must be performed ...
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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 AT29C020 blocks are located in the first 8K bytes of memory and the last 8K bytes of memory. The boot block programming lockout fea- ture can therefore support systems that boot from the lower addresses of memory or the higher addresses ...
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... A17 = A17 = V Condition I 0. Com Ind 2. MHz OUT -400 µ -100 µ 4. AT29C020 AT29C020-12 AT29C020-15 0°C - 70°C 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C 5V ± 10% 5V ± 10 OUT High Z High Z ( Manufacturer Code Device Code Manufacturer Code Device Code ...
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... AT29C020-90 AT29C020-90 AT29C020-10 Min Max Min Max Min after the address transition without impact on t ACC after the falling edge of CE without impact AT29C020-12 AT29C020-15 Max Min Max Min 100 120 100 120 ACC after an address change CE ACC OE Max Units 150 ...
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... Input Test Waveforms and Measurement Level t R Output Test Load Pin Capacitance ( MHz 25°C Symbol Typ OUT Note: 1. This parameter is characterized and is not 100% tested. 0291N–FLASH–07/ < Max 6 12 AT29C020 Units Conditions OUT 7 ...
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... Address Hold Time AH t Chip Select Set-up Time CS t 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 AT29C020 8 Min Max Units 100 ns 0291N–FLASH–07/02 ...
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... A8 through A17 must specify the sector address during each high-to-low transition of WE (or CE must be high when WE and CE are both low. 3. All words that are not loaded within the sector being programmed will be indeterminate. 0291N–FLASH–07/02 (1)(2)(3) AT29C020 Min Max Units 10 ...
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... A8 through A17 must specify the sector address during each high-to-low transition of WE (or CE) after the software code has been entered must be high when WE and CE are both low. 5. All bytes that are not loaded within the sector being programmed will be indeterminate. AT29C020 10 () Software Data Protection Disable Algorithm ...
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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 may vary. 3. Any address location may be used but the address should not vary. 0291N–FLASH–07/02 (1) (1) AT29C020 Min Typ Max Min Typ ...
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... IL 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 DA. AT29C020 12 (1) Boot Block Lockout Feature Enable Algorithm (2)(3)(5) (1) (4) Notes: ...
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... Plastic J-leaded Chip Carrier (PLCC) 32P6 32-pin, 0.600" Wide, Plastic Dual Inline Package (PDIP) 32T 32-lead, Thin Small Outline Package (TSOP) 0291N–FLASH–07/02 Ordering Code Package AT29C020-70JC 32J AT29C020-70PC 32P6 AT29C020-70TC 32T AT29C020-70JI 32J AT29C020-70PI 32P6 AT29C020-70TI 32T AT29C020-90JC ...
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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. TITLE 2325 Orchard Parkway San Jose, CA 95131 R AT29C020 14 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER ...
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... Mold Flash or Protrusion shall not exceed 0.25 mm (0.010"). 2325 Orchard Parkway San Jose, CA 95131 R 0291N–FLASH–07/02 D PIN 0º ~ 15º REF eB TITLE 32P6, 32-lead (0.600"/15.24 mm Wide) Plastic Dual Inline Package (PDIP) AT29C020 E1 COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A – – 4.826 A1 0.381 – D 41.783 – ...
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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. TITLE 2325 Orchard Parkway San Jose, CA 95131 R AT29C020 16 PIN 1 0º ~ 8º SEATING PLANE ...
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... No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ...