AS8267 datasheet(85/136 Pages) AMSCO

Part #	AS8267

Description	Single-Phase 2-Current Energy Measurement Integrated Circuits with Microcontroller, RTC, Programmable Multi-Purpose I/Os

PDF	136 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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85 / 136 page

Data Sheet AS8267 / AS8268

Revision 1.0, 19-Jun-07

Page 85 of 136

FLASH Memory Reliability

The 32kByte Flash memory implemented in the AS8267 / AS8268 ICs provide an outstanding performance in

respect to data retention time and endurance.

Endurance is the parameter that specifies the cumulative write/erase cycles of the memory cells within the

Flash memory. The data retention time of a Flash memory is a critical end-of-life parameter. This parameter

specifies the maximum period of time, after programming, that data can be expected to be retrieved valid from

the memory.

According to the JEDEC A117 specification the Flash memory has a minimum endurance of 100,000 cycles and

a retention time of 500 years at 65°C.

Data Retention EEPROM austriamicrosystems AG Ea=0.6eV

100

125

150

175

200

225

250

275

300

105

115

125

135

145

Junction Temperature [°C]

FLASH Security

The AS8267 / AS8268 comprise of two different possibilities to protect Flash content against copying and

manipulation.

The detailed implementation will be explained in this chapter.

AS8267 Datasheet(PDF) 85 Page - ams AG