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IS93C46-3PI,9346C-3PI    厂家：ISSI         进口原装            封装：DIP-8               

1024位串行电
可擦写PROM

1,024-BIT SERIAL ELECTRICALLY
ERASABLE PROM

特点
•国家的最先进的架构
- 非易失性数据存储
- 低电压工作：
3.0V（VCC= 2.7V至6.0V）
- 全TTL兼容的输入和输出
- 自动高效的数据增量转储
•低电压读操作
- 可低至2.7V
•硬件和软件写保护
- 默认写禁用状态在上电时
- 软件说明write-enable/disable
•先进的低电压CMOS E2PROM
技术
•多功能，易于使用的界面
- 自定时编程周期
- 自动擦除前写
- 编程状态指示灯
- Word和可擦写芯片
- 随时停止SK节省功耗

•可靠耐用
- 10年后数据保存100K写周期
- 100,000个写周期
- 无限的读周期

综述
该IS93C46-3是一种低成本的1024位，非易失性串行E2PROM。这是捏造使用ISSI先进CMOS E2PROM技术。该IS93C46-3提供了高效的非易失性读/写存储器，配置为64个寄存器，每个16位。七9位指令控制设备，其中包括读，写和模式使能功能的操作。数据输出引脚（DOUT）表示设备状态的非易失性编程周期自定时的过程中。
自定时写周期包括一个自动的写erasebefore能力。为了防止意外写入保护，只有当写指令被接受
芯片是在写使能状态。每到选定的寄存器写指令的16位数据被写入。如果片选（CS）后开始写的是带来了高
周期，数据输出（DOUT）引脚的芯片，将显示READY/ BUSY状态。

应用
IS93C46-3是高容量应用需要低功耗和低存储密度的理想选择。本设备使用成本低，节省空间的8引脚封装。候选的应用包括机器人，报警装置，电子锁，仪表和仪表设置。

FEATURES
• State-of-the-art architecture
— Non-volatile data storage
— Low voltage operation:
3.0V (Vcc = 2.7V to 6.0V)
— Full TTL compatible inputs and outputs
— Auto increment for efficient data dump
• Low voltage read operation
— Down to 2.7V
• Hardware and software write protection
— Defaults to write-disabled state at power-up
— Software instructions for write-enable/disable
• Advanced low voltage CMOS E2PROM
technology
• Versatile, easy-to-use Interface
— Self-timed programming cycle
— Automatic erase-before-write
— Programming status indicator
— Word and chip erasable
— Stop SK anytime for power savings

• Durable and reliable
— 10-year data retention after 100K write cycles
— 100,000 write cycles
— Unlimited read cycles

OVERVIEW
The IS93C46-3 is a low cost 1,024-bit, non-volatile, serial E2PROM. It is fabricated using ISSI’s advanced CMOS E2PROM technology. The IS93C46-3 provides efficient non-volatile read/write memory arranged as 64 registers of 16 bits each. Seven 9-bit instructions control the operation of the device, which includes read, write, and mode enable functions. The data out pin (DOUT) indicates the status of the device during in the self-timed nonvolatile programming cycle.
The self-timed write cycle includes an automatic erasebefore- write capability. To protect against inadvertent writes, the WRITE instruction is accepted only while the
chip is in the write enabled state. Data is written in 16 bits per write instruction into the selected register. If Chip Select (CS) is brought HIGH after initiation of the write
cycle, the Data Output (DOUT) pin will indicate the READY/BUSY status of the chip.

APPLICATIONS
The IS93C46-3 is ideal for high-volume applications requiring low power and low density storage. This device uses a low cost, space saving 8-pin package. Candidate applications include robotics, alarm devices, electronic locks, meters and instrumentation settings.