1MHz EEPROM series feature I2C interface and densities up to 1Mbit
October 18, 2012 // Julien Happich
Rohm Semiconductor released a series of high density and high speed EEPROMs. The line-up comes with densities of 512k and 1Mbit, with speeds to up to 1MHz.
All EEPROMs feature a double cell structure to eliminate accidental failures, and a double protection circuit to prevent writing errors. This makes them suitable memory solutions for a wide range of devices such as consumer, industrial and automotive applications. Rewriting is performed by passing electrons through a tunnel oxide film. This, however, causes deterioration of the film, eventually leading to memory failure where the memory cell data is locked at '1' and cannot be rewritten to.
Rohm’s double cell structure prevents this by allotting two cells for each memory bit, connected in an OR configuration so that the second cell is able to operate upon failure of the first. All LSIs become unstable during power ON and OFF: EEPROMs are even more susceptible to failure, making it impossible to even recover from one malfunction. In response to this, Rohm has integrated a double protection circuit consisting of a Power ON Reset (POR) block that resets during start-up and a Low Voltage Write Error Protection Circuit (LVCC) that prevents write operations and resets during low voltage conditions (LVCC and below).
Data can be rewritten up to 1.000.000 times and stored for 40 years. The new devices can be delivered in standard packages such as SO8 and TSSOP8. All control functions are available through two ports of the serial clock (SCL) and serial data (SDA).
Visit Rohm Semiconductor Europe at www.rohm.com/euAll news
Li-Fi communication module wirelessly transfers data at 1-Gbps
October 31, 2014
The Fraunhofer Institute for Photonic Microsystems IPMS in Dresden has developed communication modules that can wirelessly ...
Digital Lumens raises USD23m for intelligent LED lighting solution
Bosch brings electronic fuel system, connectivity to Asian motorbikes
NXP extends NFC ecosystem to the car
Japan's MegaChips to buy MEMS maker SiTime
Freescale CEO: 'IoT isn't just buzz'
October 30, 2014
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's ...
3D prints world's best inverter
Research project significantly improves electronics reliability
Netscout Acquires Communications Businesses From Danaher
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.