24AA52

Features:

`Single supply with operation down to 1.8V
`Low-power CMOS technology:
-1mA active current typical
-1A standby current typical (I-temp)
`Organized as 1 block of 256 bytes (256 x 8)
`Software write protection for lower 128 bytes
`Hardware write protection for entire array
`2-wire serial interface bus, I²C^TM compatible
`Schmitt Trigger inputs for noise suppression
`Output slope control to eliminate ground bounce
`100kHz (24AA52) and 400kHz (24LCS52) compatibility
`Self-timed write cycle (including auto-erase)
`Page write buffer for up to 16 bytes
`3.5ms typical write cycle time for page write
`ESD protection > 4,000V
`1,000,000 erase/write cycles
`Data retention > 200 years
`8-lead PDIP, SOIC, TSSOP, MSOP and DFN packages
`Standard and Pb-free finishes available
`Available for extended temperature ranges:
-Industrial (I): -40 to +85




Pinout






Specifications

Parameter Name	Value
Density	2K bits (x8)
Max. Clock Freq.	400 kHz
Page Size (bytes)	16
Write Protect	Whole Array
Endurance	1,000,000
Op. Volt Range (V)	1.8 to 5.5
Temp Range (°C)	-40°C to +85°C

Absolute Maximum Ratings *
V_CC.............................................................................................6.5V
All inputs and outputs w.r.t. V_SS ........................-0.3V to V_CC +1.0V
Storage temperature...............................................-65 to +150
Ambient temperature with power applied................-40 to +125
ESD protection on all pins........................................................... 4kV
* NOTICE: Stresses above those listed under 'Absolute Maximum Ratings' may cause permanent damage to the
device. These are stress ratings only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.

Description

The Microchip Technology Inc. 24AA52 is a 2 Kbit Electrically Erasable PROM capable of operation across a broad voltage range (1.8V to 5.5V). This device 24AA52 has a software write-protect feature for the lower half of the array, as well as an external pin that can be used to write-protect the entire array. The software write-protect feature is enabled by sending the device a special command. Once this feature has been enabled, it cannot be reversed. In addition to the software protect feature, there is a WPpin that can be used to write-protect the entire array,regardless of whether the software write-protectregister has been written or not. This allows the systemdesigner to protect none, half, or all of the array,depending on the application. The device is organizedas one block of 256 x 8-bit memory with a 2-wire serialinterface. Low-voltage design permits operation downto 1.8V, with standby and active currents of only 1 Aand 1 mA, respectively. The 24AA52 also has a pagewrite capability for up to 16 bytes of data. The 24AA52is available in the standard 8-pin PDIP, surface mountSOIC, TSSOP, MSOP and DFN packages.