@vic
AV93LC46
Copyright © Avic Electronics Corp.
1
Website: http://www.avictek.com
1024-BITS SERIAL ELECTRICALLY ERASABLE PROM
Features
State-of-the-art architecture
-Non-volatile data storage
-Operating voltage Vcc : 2.7-5.5V
-Full TTL compatible inputs and outputs
-Auto increment read efficient data dump
Hardware and software write protection
-Defaults to write-disabled state at power up
-Software instructions for write-enable/disable
-Vcc level verification before self-timed
programming cycle
Advanced low voltage CMOS EEPROM technology
General Description
The AV93LC46 is a 1024-bit, non-volatile, serial EEPROM. It is manufactured by using advanced CMOS
EEPROM technology. The AV93C46 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 write enable/disable functions. The data out pin (DO) indicates the status of the device during the self-timed
non-volatile programming cycle.
The self-timed write cycle includes an automatic erase-before write capability. Only when the chip is in the
WRITE ENABLE state and proper Vcc operation range is the WRITE instruction accepted and thus to protect
Against inadvertent writes, 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 (DO) pin will indicate the
READY/BUSY status of the chip.
The AV93C46 is available in space-saving 8-lead PDIP, 8-lead SOP and rotated 8-lead SOP package.
CONNECTION DIAGRAM
PIN ASSIGNMENT
CS
Chip Select
SK
Serial Data Clock
DI
Serial Data Input
DO
Serial Data Output
GND
Ground
VCC
Power Supply
NC
No Connection
Versatile, easy-to-use interface
-Self-timed programming cycle
-Automatic erase-bofore-write
-Programming status indicator
-Word and chip erasable
-Stop SK anytime for power savings
Durability and reliability
-40 year data retention
-Minimum of 1M write cycles
-Unlimited read cycles
-ESD protection
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