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X24F128P Datasheet(PDF) 2 Page - Xicor Inc. |
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X24F128P Datasheet(HTML) 2 Page - Xicor Inc. |
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2 / 16 page  X24F128 2 Xicor SerialFlash Memories are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years. PIN DESCRIPTIONS Serial Clock (SCL) The SCL input is used to clock all data into and out of the device. Serial Data (SDA) SDA is a bidirectional pin used to transfer data into and out of the device. It is an open drain output and may be wire-ORed with any number of open drain or open collector outputs. An open drain output requires the use of a pull-up resistor. For selecting typical values, refer to the Pull- up resistor selection graph at the end of this data sheet. Device Select (S0, S1, S2) The device select inputs (S0, S1, S2) are used to set the first three bits of the 8-bit slave address. This allows up to eight devices to share a common bus. These inputs can be static or actively driven. If used statically they must be tied to VSS or VCC as appro- priate. If actively driven, they must be driven with CMOS levels. Program Protect (PP) The Program Protect input controls the Hardware Program Protect feature. When held LOW, hardware program protection is disabled and the device can be programmed normally. When this input is held HIGH, and the PPEN bit in the Program Protect Register is set HIGH, program protection is enabled, and nonvola- tile writes are disabled to the selected blocks as well as the Program Protect Register itself. PIN NAMES 7012 FRM T01 PIN CONFIGURATION Symbol Description S0, S1, S2 Device Select Inputs SDA Serial Data SCL Serial Clock PP Program Protect VSS Ground VCC Supply Voltage NC No Connect VCC PP SCL SDA S0 S1 S2 VSS 1 2 3 4 8 7 6 5 8-LEAD DIP 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 16-LEAD SOIC S0 S1 NC NC NC NC S2 VSS VCC PP NC NC NC NC SCL SDA X24F128 X24F128 7012 ILL F02.1 |
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