5MHz SPI Serial E 2 PROM with Block Lock TM Protection
The X25650 is a CMOS 65,536-bit serial E2PROM, internally organized as 8K x 8. The X25650 features a
Serial Peripheral Interface (SPI) and software protocol allowing operation on a simple three-wire bus. The bus signals are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input, allowing any number of devices to share the same bus.
The X25650 also features two additional inputs that provide the end user with added ï¬‚exibility. By asserting the HOLD input, the X25650 will ignore transitions on its inputs, thus allowing the host to service higher priority interrupts. The WP input can be used as a hardwire input to the X25650 disabling all write attempts to the status register, thus providing a mechanism for limiting end user capability of altering 0, 1/4, 1/2 or all of the memory.
The X25650 utilizes Xicor’s proprietary Direct WriteTM cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years.
• 5MHz Clock Rate
• Low Power CMOS
<1µA Standby Current
<5mA Active Current
• 2.5V To 5.5V Power Supply
• SPI Modes (0,0 & 1,1)
• 8K X 8 Bits
32 Byte Page Mode
• Block Lock™ Protection
Protect 1/4, 1/2 or all of E2
• Programmable Hardware Write Protection
In-Circuit Programmable ROM Mode
• Built-in Inadvertent Write Protection
Power-Up/Down protection circuitry
Write Enable Latch
Write Protect Pin
• Self-Timed Write Cycle
5ms Write Cycle Time (Typical)
• High Reliability
Endurance: 100,000 cycles
Data Retention: 100 Years
ESD protection: 2000V on all pins
new and original stock
Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .
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