AT93C56A 2Kbit,3线串行EEPROM存储器

2Kbit, 3-wire Bus Serial Automotive EEPROM with sequential read, supports x8 or x16 data format memory organization.

• 2KBEEPROM存储器: AT93C56A 汽车级
• 4KBEEPROM存储器: AT93C66A 汽车级

The AT93C56A/66A provides 2048/4096 bits of serial electrically-erasable programmable read-only memory (EEPROM). The EEPROM is organized as 128/256 words of 16 bits each when the ORG pin is connected to VCC and 256/512 words of 8 bits each when it is tied to ground. The device is optimized for use in many automotive applications where low-power and low-voltage operations are essential. The AT93C56A/66A is available in space-saving 8-lead JEDEC SOIC and 8-lead TSSOP packages. The AT93C56A/66A is enabled through the Chip Select (CS) pin and accessed via a three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a Read instruction at DI, the address is decoded and the data is clocked out serially on the data output pin DO. The write cycle is completely self-timed and no separate erase cycle is required before write. The write cycle is only enabled when the part is in the Erase/Write Enable state. When CS is brought high following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part. The AT93C56A/66A is available in 2.7V to 5.5V versions.

AT93C56A 特性

• Medium-voltage and Standard-voltage Operation
  – 2.7 (VCC = 2.7V to 5.5V)
• Automotive Temperature Range –40°C to 125°C
• User-selectable Internal Organization
  – 2K: 256 x 8 or 128 x 16
  – 4K: 512 x 8 or 256 x 16
• Three-wire Serial Interface
• Sequential Read Operation
• 2 MHz Clock Rate
• Self-timed Write Cycle (10 ms max)
• High Reliability
  – Endurance: 1 Million Write Cycles
  – Data Retention: 100 Years
• Lead-free/Halogen-free Devices Available
• 8-lead JEDEC SOIC and 8-lead TSSOP Packages

AT93C56A 订货型号：

AT93C56A 技术支持：

1. ATMEL 爱特梅尔汽车级EEPROM 存储器AT93C56A 数据手册DataSheet 下载. PDF（PDF 文件格式完整版）
2. 串行EEPROM 产品选型指南（ Excel 文档格式）
3. Interfacing AT93CXXX Serial EEPROMs with AT89CX051 MCU (4 pages, updated 10/98)
   This Application Note demonstrates interfacing AT89CX051 Microcontrollers to the AT93CXX 3-Wire type of Serial EEPROMs.
4. 中文版ATMEL 汽车应用解决方案 . pdf
5. 英文版ATMEL 汽车应用解决方案 . pdf
6. 嵌入式系统中EEPROM文件系统的设计与实现 . PDF
7. ATMEL 爱特梅尔公司全线产品目录. pdf