Hot-selling and scarce X24645S8-2.7T1 Advanced 2-Wire Serial E2PROM with Block LockTM Protection SOP8 spot stock

Product Descriptions

The X24645 is a CMOS 65,536-bit serial E2 PROM,  internally organized 8192 x 8. The X24645 features a  serial interface and software protocol allowing operation  on a simple two wire bus.

Two device select inputs (S1, S2) allow up to four  devices to share a common two wire bus.

A Write Protect Register at the highest address location,  1FFFh, provides three new write protection  features: Software Write Protect, Block Write Protect, and  Hardware Write Protect. The Software Write Protect feature prevents any nonvolatile writes to the  X24645 until the WEL bit in the write protect register is  set. The Block Write Protection feature allows the user to  individually write protect four blocks of the array by programming two bits in the write protect register. The  Programmable Hardware Write Protect feature allows  the user to install the X24645 with WP tied to VCC,  program the entire memory array in place, and then  enable the hardware write protection by programming a  WPEN bit in the write protect register. After this,  selected blocks of the array, including the write protect  register itself, are permanently write protected, as long  as WP remains HIGH.

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Product Features

•2.7V to 5.5V Power Supply

•Low Power CMOS

—Active Read Current Less Than 1mA

—Active Write Current Less Than 3mA

—Standby Current Less Than 1∝A

•Internally Organized 8192 x 8

•New Programmable Block Lock Protection

—Software Write Protection

—Programmable hardware Write Protect

•Block Lock (0, 1/4, 1/2, or all of the E2 PROM array)

•2 Wire Serial Interface

•Bidirectional Data Transfer Protocol

•32 Byte Page Write Mode

—Minimizes Total Write Time Per Byte

•Self Timed Write Cycle

—Typical Write Cycle Time of 5ms

•High Reliability

—Endurance: 100,000 Cycles

—Data Retention: 100 Years

•Available Packages

—8-Lead PDIP

—8-Lead SOIC (JEDEC)

—14-Lead SOIC (JEDEC)

—20-Lead TSSOP

Product Photos

For more product information, please download the PDF