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X24645PM-2.7 Datasheet(PDF) 2 Page - IC MICROSYSTEMS |
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X24645PM-2.7 Datasheet(HTML) 2 Page - IC MICROSYSTEMS |
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2 / 18 page  X24645 2 ICmic E 2 PROMs 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 (S1, S2) The device select inputs (S1, S2) are used to set the first and second bits of the 8-bit slave address. This allows up to four X24645 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 appropriate. If actively driven, they must be driven with CMOS levels (driven to VCC or VSS). Write Protect (WP) The write protect input controls the hardware write protect feature. When held LOW, hardware write protection is disabled and the X24645 can be written normally. When this input is held HIGH, and the WPEN bit in the write protect register is set HIGH, write protection is enabled, and nonvolatile writes are disabled to the selected blocks as well as the write protect register itself. PIN NAMES 2783 FRM T01.1 Symbol Description S1, S2 Device Select Inputs SDA Serial Data SCL Serial Clock WP Write Protect VSS Ground VCC Supply Voltage NC No Connect PIN CONFIGURATIONS V CC WP SCL SDA NC S 1 S 2 V SS 1 2 3 4 8 7 6 5 X24645 8-LEAD DIP & SOIC NC NC NC S 1 S 2 V SS NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 NC NC V CC WP SCL SDA NC X24645 14-LEAD SOIC NC V CC WP NC NC NC SCL SDA NC NC 2783 ILL F02.4 NC NC S 1 NC NC NC S 2 V SS NC NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 X24645 20-LEAD TSSOP |
Similar Part No. - X24645PM-2.7 |
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Similar Description - X24645PM-2.7 |
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