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X24F128SE-5 Datasheet(PDF) 1 Page - Xicor Inc. |
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X24F128SE-5 Datasheet(HTML) 1 Page - Xicor Inc. |
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1 / 16 page  2-Wire SerialFlash with Block LockTM Protection 128K 16K x 8 Bit ©Xicor, 1995, 1996 Patents Pending Characteristics subject to change without notice 7012-0.8 11/25/96 T1/C0/D0 SH 1 X24F128 FUNCTIONAL DIAGRAM FEATURES • Save Critical Data With Programmable Block Lock Protection —Block Lock (0, 1/4, 1/2, or all of E2PROM Array) —Software Program Protection —Programmable Hardware Program Protect • In Circuit Programmable ROM Mode • Longer Battery Life With Lower Power —Active Read Current Less Than 1mA —Active Program Current Less Than 3mA —Standby Current Less Than 1 µA • 1.8V to 3.6V or 5V “Univolt” Read and Program Power Supply Versions • 32 Word Sector Program Mode —Minimizes Total Program Time Per Word • 100KHz 2-Wire Serial Interface • Internally Organized 16K x 8 • Bidirectional Data Transfer Protocol • Self-Timed Program Cycle —Typical Program Cycle Time of 5ms • High Reliability —Endurance: 100,000 Cycles —Data Retention: 100 Years • 8-Lead DIP • 16-Lead SOIC DESCRIPTION The X24F128 is a CMOS SerialFlash Memory, inter- nally organized 16K x 8. The device features a serial interface and software protocol allowing operation on a simple two wire bus. Three device select inputs (S0–S2) allow up to eight devices to share a common two wire bus. A Program Protect Register at the address location FFFFh provides three program protection features: Software Program Protect, Block Lock Protect, and Hardware Program Protect. The Software Program Protect feature prevents any nonvolatile writes to the device until the PEL bit in the Program Protect Register is set. The Block Lock Protection feature allows the user to individually block protect four blocks of the array by programming two bits in the Program Protect Register. The Programmable Hardware Program Protect feature allows the user to install the device with PP tied to VCC, program the entire memory array in circuit, and then enable the hardware program protection by programming a PPEN bit in the Program Protect Register. After this, selected blocks of the array, including the Program Protect Register itself, are permanently protected from being erased. SCL SERIALFLASH DATA AND ADDRESS (SDA) PP PROGRAM VOLTAGE CONTROL SERIALFLASH ARRAY 16K x 8 S1 S0 S2 4K x 8 4K x 8 8K x 8 COMMAND DECODE AND CONTROL LOGIC SECTOR DECODE LOGIC DEVICE SELECT LOGIC PROGRAM PROTECT REGISTER BLOCK LOCK AND PROGRAM PROTECT CONTROL LOGIC Y DECODE LOGIC DATA REGISTER 7012 ILL F01.4 APPLICATION NOTE A V A I L A B L E AN84 |
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