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CPU Supervisor with 4K SPI EEPROM


Description:

These devices combine four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.
Applying power to the device activates the power-on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and oscillator to stabilize before the processor executes code.
The Watchdog Timer provides an independent protection mechanism for microcontrollers. When the microcontroller fails to restart a timer within a selectable time out interval, the device activates the RESET/RESET signal. The user selects the interval from three preset values. Once selected, the interval does not change, even after cycling the power.
The device’s low VCC detection circuitry protects the user’s system from low voltage conditions, resetting the system when VCC falls below the minimum VCC trip point.
RESET/RESET is asserted until VCC returns to proper operating level and stabilizes. Four industry standard VTRIPthresholds are available, however, Intersil’s unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold for applications requiring higher precision.
The memory portion of the device is a CMOS Serial
EEPROM array with Intersil’s block lock protection. The array is internally organized as 512 x 8. The device features a Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple four-wire bus.
The device utilizes Intersil’s proprietary Direct Write™ cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years.


Applications:

• Low VCC Detection and Reset Assertion
- Four standard reset threshold voltages 4.63V, 4.38V, 2.93V, 2.63V
- Re-program low VCC reset threshold voltage using special programming sequence.
- Reset signal valid to VCC = 1V
• Selectable Time Out Watchdog Timer
• Long Battery Life with Low Power Consumption
- <50µA max standby current, watchdog on
- <10µA max standby current, watchdog off
• 4Kbits of EEPROM–1M Write Cycle Endurance
• Save Critical Data with Block Lock™ Memory
- Protect 1/4, 1/2, all or none of EEPROM array
• Built-in Inadvertent Write Protection
- Write enable latch
- Write protect pin
• SPI Interface - 3.3MHz Clock Rate
• Minimize Programming Time
- 16-byte page write mode
- 5ms write cycle time (typical)
• Available Packages
- 8 Ld MSOP, 8 Ld SOIC, 8 Ld PDIP
- 14 Ld TSSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)


Specifications:

Competitive Advantage:


Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .
Why buy from us >>> Fast / Safely / Conveniently
• Mega Source is a Stock keeper and trade company of Electronic components .Our branches office include China, Hong Kong, Sigapore , Canada . Offer business, service, resourcing and information for our global member.
• Goods are ensured the highest quality possible and are delivered to our customers all over the world with speed and precision.

How to buy >>>
• Contact us by email & sent your inquire with your Transport destination .
• Online chat, the commissioner would be responded ASAP.

Service >>>
• Forwarder Shipment to world-wide, DHL ,TNT ,UPS,FEDEX etc. buyer don`t need to worry about shipping problem
• We will try to respond as quickly as possible. But due to time zone difference, please allow up to 24 hours to get your mail replied. The products were tested by some devices or software, we ensure that there is no quality problems.
• We are committed to providing fast, convenient and safe transportation service to global buyer.

Mega Source Elec. Limited is a leading independent electronic components supplier and distributor since 2004.Mega Source Elec. Limited has been specialized in providing Original Equipment Manufacturers (OEMs) and Contract Electronic Manufacturers (CEMs) which is hard to find, obsolete and hot sales integrated circuits ,semiconductors,LCD displays,power bank ect.

With years’ development, we have had developed a complete electronic components supply and distribute system.
Through our importing and exporting of components all around the world, Mega Source Elec. Limited can quickly feedback and satisfy customers’ need.
Besides, we have had gained a great reputation in domestic and international market for our experience and market insight, as well as our up-front, proactive, and responsive approach to service, adequate inventory and unwavering commitment to quality.

How Mega Source Elec. Makes A Difference In The Distribution Of Electronic Components 

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At the heart of Mega Source Elec. lies a commitment       Mega Source Electronics stocks components are

to total customer satisfaction with a secure quality           ready to be shipped.

system .We have professional testing facilities and          Hard-to-find,obsolete and high demand integrated 

and experienced QC& engineering team.With advanced  circuit & LCD display ect. can be found by us.

equipment and experienced industry experts, Mega        

Source Elec. is committed to fulfilling the needs of

our customers .                                                                     

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which guarantees our service is very quick, convenient     resolve to fulfill social responsibility and pay

and efficient. attention to environmental protection.

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More than 50 staff are in MEGA SOURCE.We are always here to fulfill your electronic components needs.

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ADDRESS：22B FuHongGe, FuXing Garden Building, FuXing Rd, FuTian Dist. Shenzhen 518033