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PCF8583P Datasheet(PDF) 1 Page - NXP Semiconductors |
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PCF8583P Datasheet(HTML) 1 Page - NXP Semiconductors |
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1 / 37 page  1. General description The PCF8583 is a clock and calendar chip, based on a 2048 bit static CMOS1 RAM organized as 256 words by 8 bits. Addresses and data are transferred serially via the two-line bidirectional I2C-bus. The built-in word address register is incremented automatically after each written or read data byte. Address pin A0 is used for programming the hardware address, allowing the connection of two devices to the bus without additional hardware. The built-in 32.768 kHz oscillator circuit and the first 8 bytes of the RAM are used for the clock, calendar, and counter functions. The next 8 bytes can be programmed as alarm registers or used as free RAM space. The remaining 240 bytes are free RAM locations. 2. Features and benefits I2C-bus interface operating supply voltage: 2.5 V to 6 V Clock operating supply voltage 1.0 V to 6.0 V at 0 °Cto+70 °C 240 × 8-bit low-voltage RAM Data retention voltage: 1.0 V to 6.0 V Operating current (at fSCL = 0 Hz): max 50 μA Clock function with four year calendar Universal timer with alarm and overflow indication 24 hour or 12 hour format 32.768 kHz or 50 Hz time base Serial input and output bus (I2C-bus) Automatic word address incrementing Programmable alarm, timer, and interrupt function Slave addresses: A1h or A3h for reading, A0h or A2h for writing PCF8583 Clock and calendar with 240 x 8-bit RAM Rev. 06 — 6 October 2010 Product data sheet 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 14. |
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Similar Description - PCF8583P |
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