1024-BIT SERIAL ELECTRICALLY ERASABLE PROM
Description
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IS93C46-3
1,024-BIT SERIAL ELECTRICALLY ERASABLE PROM
FEATURES OVERVIEW
ISSI
®
MARCH 2001
• State-of-the-art architecture The IS93C46-3 is a low cost 1,024-bit, non-volatile, serial — Non-volatile data storage E2PROM.
It is fabricated using ISSI’s advanced CMOS E2PROM technology.
The IS93C46-3 provides efficient — Low voltage operation: non-volatile read/write memory arranged as 64 registers 3.
0V (Vcc = 2.
7V to 6.
0V) of 16 bits each.
Seven 9-bit instructions control the — Full TTL compatible inputs and outputs operation of the device, which includes read, write, and — Auto increment for efficient data dump mode enable functions.
The data out pin (DOUT) indicates • Low voltage read operation the status of the device during in the self-timed non— Down to 2.
7V volatile programming cycle.
• Hardware and software write protection The self-timed write cycle includes an automatic erase— Defaults to write-disabled state at power-up before-write capability.
To protect against inadvertent — Software instructions for write-enable/disable writes, the WRITE instruction is accepted only while the chip is in the write enabled state.
Data is written in 16 bits • Advanced low voltage CMOS E2PROM per write instruction into the selected register.
If Chip technology Select (CS) is brought HIGH after initiation of the write • Versatile, easy-to-use Interface cycle, the Data Output (DOUT) pin will indicate the READY/ — Self-timed programming cycle BUSY status of the chip.
— Automatic erase-before-write DataShee — Programming status indicator APPLICATIONS — Word and chip erasable The IS93C46-3 is ideal for high-volume applications DataSheet4U.
com — Stop SK anytime for power savings requiring low power and low density storage.
This device uses a low cost, space saving 8-pin package.
Candidate • Durable and reliable applications include robotics, alarm devices, electronic — 10-year data retention after 100K write cycles locks, meters and instrumentation settings.
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