Series: -
Operating Temperature: -40°C ~ 85°C
Packaging: Tube
Format - Memory: FLASH
Memory Type: FLASH
Voltage - Supply: 2.7 V ~ 3.6 V
Memory Size: 2M (256K x 8)
Interface: Parallel
Package / Case: 32-LCC (J-Lead)
Supplier Device Package: 32-PLCC
Manufacturer: Atmel
Speed: 250ns
Features: • Single Supply Voltage, Range 2.7V to 3.6V
• Single Supply for Read and Write
• Software Protected Programming
• Fast Read Access Time - 250 ns
• Low Power Dissipation
15 mA Active Current
20 µA CMOS Standby Current
• Sector Program Operation
Single Cycle Reprogram (Erase and Program)
1024 Sectors (256 bytes/sector)
Internal Address and Data Latches for 256-Bytes
• Two 8 KB Boot Blocks with Lockout
• Fast Sector Program Cycle Time - 20 ms Max.
• Internal Program Control and Timer
• DATA Polling for End of Program Detection
• Typical Endurance > 10,000 Cycles
• CMOS and TTL Compatible Inputs and Outputs
• Commercial and Industrial Temperature RangesPinout
SpecificationsTemperature Under Bias................. -55°C to +125°C
Storage Temperature...................... -65°C to +150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ................... -0.6V to +6.25V
All Output Voltages
with Respect to Ground ............. -0.6V to VCC + 0.6V
Voltage on A9
(including NC Pins)
with Respect to Ground ................... -0.6V to +13.5VDescriptionThe AT29BV020-25JI is a 2.7-volt-only in-system Flash Programmable and Erasable Read Only Memory (PEROM). AT29BV020-25JI's 2 megabits of memory is organized as 262,144 words by 8 bits. Manufactured with Atmel's advanced nonvolatile CMOS EEPROM technology, the AT29BV020-25JI offers access times up to 250 ns, and a low 54 mW power dissipation. When the device is deselected, the CMOS standby current is less than 20 µA. The AT29BV020-25JI endurance is such that any sector can typically be written to in excess of 10,000 times. The programming algorithm is compatible with other devices in Atmel's Low Voltage Flash family of products.
To allow for simple in-system reprogrammability, the AT29BV020-25JI does not require high input voltages for programming. The device can be operated with a single 2.7V to 3.6V supply. Reading data out of the AT29BV020-25JI is similar to reading from an EPROM. Reprogramming the AT29BV020-25JI 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. Following the initiation of a program cycle, the AT29BV020-25JI will automatically erase the sector and then program the latched data using an internal control timer. The end of a program cycle can be detected by DATA polling of I/O7. Once the end of a program cycle has been detected, a new access for a read or program can begin.
Parameters: | Technical/Catalog Information | AT29BV020-25JI |
| Vendor | Atmel |
| Category | Integrated Circuits (ICs) |
| Memory Type | FLASH |
| Memory Size | 2M (256K x 8) |
| Speed | 250ns |
| Interface | Parallel |
| Package / Case | 32-PLCC |
| Packaging | Tube |
| Voltage - Supply | 2.7 V ~ 3.6 V |
| Operating Temperature | -40°C ~ 85°C |
| Format - Memory | FLASH |
| Drawing Number | * |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | AT29BV020 25JI
AT29BV02025JI
|
AT29BV020-25JI Data Sheet
