AT29C020-90JI

PLCC plastic package containing NOR Flash memory chip with 256K x 8 capacity
7,706 有效庫存

AT29C020-90JI

有效庫存7,706

PLCC plastic package containing NOR Flash memory chip with 256K x 8 capacity

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AT29C020-90JI 數據表
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AT29C020-90JI 詳細說明

Boasting a byte-wide mode for seamless interfacing with microcontrollers and a write protect pin for added security, the AT29C020-90JI ensures your data remains intact and safe from accidental modifications. With software data protection measures in place, critical information is shielded from potential threats. Additionally, this flash memory device is built to last, offering a minimum of 100,000 program/erase cycles for ultimate reliability and endurance

主要特徵

  • Fast Read Access Time - 90 ns
  • 5-Volt-Only Reprogramming
  • Sector Program Operation
  • Single Cycle Reprogram (Erase and Program)
  • 1024 Sectors (256 bytes/sector)
  • Internal Address and Data Latches for 256-Bytes
  • Internal Program Control and Timer
  • Hardware and Software Data Protection
  • Two 8 KB Boot Blocks with Lockout
  • Fast Sector Program Cycle Time - 10 ms
  • DATA Polling for End of Program Detection
  • Low Power Dissipation
  • 40 mA Active Current
  • 100 µA CMOS Standby Current
  • Typical Endurance> 10,000 Cycles
  • Single 5V ±10% Supply
  • CMOS and TTL Compatible Inputs and Outputs
  • Commercial and Industrial Temperature Ranges

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Product Category ! NOR Flash RoHS N
Mounting Style SMD/SMT Package / Case PLCC-32
Series AT29C Memory Size ! 2 Mbit
Supply Voltage - Min 4.5 V Supply Voltage - Max 5.5 V
Active Read Current - Max 40 mA Interface Type Parallel
Organization 256 k x 8 Data Bus Width 8 bit
Timing Type Asynchronous Minimum Operating Temperature - 40 C
Maximum Operating Temperature ! + 85 C Architecture Sector
Brand Microchip Technology Memory Type ! NOR
Moisture Sensitive Yes Product Type ! NOR Flash
Speed 90 ns Standard Not Supported
Factory Pack Quantity 32 Subcategory Memory & Data Storage

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 AT29C020-90JI PDF 下載

常見問題解答

What is AT29C020-90JI?

The AT29C020-90JI is a 2-megabit (256K x 8) low-voltage parallel electrically-erasable programmable read-only memory (EEPROM) chip manufactured by Microchip Technology. It is commonly used for storing program codes, data, and configuration information in various electronic devices.

How Does AT29C020-90JI Work?

The AT29C020-90JI works by allowing data to be electronically programmed and erased using specific voltage levels. It features a parallel interface for easy integration with microcontrollers or other digital systems. The chip retains data even when power is removed, making it non-volatile and suitable for storing critical information.

How Many Pins does AT29C020-90JI have and What are the Functions of the Pinout Configuration?

The AT29C020-90JI is housed in a 32-pin PLCC (Plastic Leaded Chip Carrier) package. The pinout configuration includes:

  • A0-A16: Address pins for selecting memory locations.
  • DQ0-DQ7: Data input/output pins for bidirectional communication.
  • CE: Chip enable pin for activating the chip.
  • OE: Output enable pin for enabling data output.
  • WE: Write enable pin for programming data into memory.
  • VCC: Power supply pin for the chip.
  • GND: Ground pin for electrical reference.

What are the Pros and Cons of AT29C020-90JI?

Pros:

  • Low-Voltage Operation: Operates at low voltage levels for reduced power consumption.
  • Non-Volatile Memory: Data is retained even when power is off, ensuring data integrity.
  • Parallel Interface: Easy integration with microcontrollers and other digital systems.
  • High Storage Capacity: Offers 2-megabit storage for storing large amounts of data.
  • Durable Packaging: The PLCC package provides good protection for the chip.

Cons:

  • Complex Programming: Requires careful handling and specific voltage levels for programming and erasing.
  • Limited Rewrite Cycles: EEPROMs have a limited number of write/erase cycles compared to other memory types.
  • Physical Size: PLCC packages may require additional board space compared to smaller packages.

Are There Any Equivalents/Alternatives to AT29C020-90JI for Recommendation?

  • The M27C2001 from STMicroelectronics is a comparable 2-megabit parallel EEPROM.
  • Alternative options to the AT29C020-90JI include the 28C020 from Microchip Technology and the CAT28C256 from ON Semiconductor.

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