DS3902 Maxim Integrated Products, DS3902 Datasheet
DS3902
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DS3902 Summary of contents
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... I compatible serial interface. Internal address settings allow the DS3902 slave address to be programmed to one of 128 possible addresses. The low cost and the small size of the DS3902 make it an ideal replacement for conventional mechanical-trimming resistors. Optical Transceivers Optical Transponders ...
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Dual, NV, Variable Resistors with User EEPROM ABSOLUTE MAXIMUM RATINGS Voltage Range SDA, SCL, H0, CC and H1 Relative to Ground................................-0.5V to +6.0V Voltage Range on ADD_SEL Relative to Ground ...............-0. 0.5V), not to ...
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AC ELECTRICAL CHARACTERISTICS (Figure +2.4V to +5.5V -40°C to +95°C, unless otherwise noted. Timing referenced PARAMETER SYMBOL SCL Clock Frequency Bus Free Time Between STOP and START Conditions Hold Time (Repeated) ...
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Dual, NV, Variable Resistors with User EEPROM (V = +3.3V +25°C, unless otherwise noted STANDBY SUPPLY CURRENT vs. TEMPERATURE 180 V = +5V CC 160 140 120 100 ASEL ...
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T = +25°C, unless otherwise noted ABSOLUTE LINEARITY vs. POSITION 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0. 100 POSITION (DEC) H1 ABSOLUTE LINEARITY vs. POSITION 0.1 0.08 0.06 ...
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... GND 6 _____________________________________________________________________ The block diagram of the DS3902 is shown in the Block Diagram section. Detailed descriptions of major com- ponents follow. A memory map of the DS3902 is shown in The DS3902 contains two, 256-position (plus High-Z), NV, variable digital resistors. Pins H0 and H1 are the high terminals of Resistor 0 and Resistor 1, respective- ly ...
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... The nominal resistance (in ohms) of the resistors can be found in the ordering information table at the beginning of this data sheet. When the DS3902 is powered up, the resistors are both set to High-Z instantaneously while the settings stored in EEPROM are recalled. Slave Address & ADD_SEL Pin 2 The I C slave address of the DS3902 depends on the state of the ADD_SEL pin ...
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Dual, NV, Variable Resistors with User EEPROM SDA t BUF t LOW SCL t HD:STA STOP START NOTE: TIMING IS REFERENCED TO V (MAX) AND V (MIN Figure Timing Diagram START Condition: A START ...
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... STOP condition. The DS3902 is capable of writing bytes (1 page or row) with a single write transaction. This is internally controlled by an address counter that allows data to be written to consecutive addresses without transmitting a memory address before each data byte is sent ...
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Dual, NV, Variable Resistors with User EEPROM TYPICAL 2-WIRE WRITE TRANSACTION MSB LSB START R/W READ/ SLAVE WRITE ADDRESS* EXAMPLE 2-WIRE TRANSACTIONS (WHEN ADD_SEL TIED TO GND) A2h A) SINGLE BYTE WRITE START ...
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... Pin Configuration TOP VIEW H0 1 SDA 2 DS3902 SCL 3 GND 4 µSOP Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...