DS3900EVKIT Maxim Integrated Products, DS3900EVKIT Datasheet
DS3900EVKIT
Specifications of DS3900EVKIT
Related parts for DS3900EVKIT
DS3900EVKIT Summary of contents
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... Built-in Pullup Resistors for SDA and SCL Minimize Required External Hardware ♦ Connection to Standard Prototyping Boards Applications Possible Using Header Connectors ♦ Operates from 3.0V to 5.5V PART DS3900EVKIT (N.C.) RESET ______________________________________________ Maxim Integrated Products For Evaluation Kits Features Ordering Information DESCRIPTION ...
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Serial Communications Module For Evaluation Kits RECOMMENDED OPERATING CHARACTERISTICS (V = 3.0V to 5.5V +25°C PARAMETER SYMBOL Supply Voltage Input Logic 0 Input Logic 1 Supply Current RS232 Baud Rate Note 1: All voltages listed are ...
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DS3900 SERIAL COMMUNICATION MODULE N.C. PC Figure 1. Functional Diagram Detailed Description The DS3900 communicates with ICs using a PC’s serial port. It utilizes a MAX3223 RS232 transceiver to trans- late the serial port signal levels from able levels for ...
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Serial Communications Module For Evaluation Kits Integral Pullups section). This connects 4.7kΩ resistors to both 2-wire buses. For designs that only use the DS3900 to communicate to 2-wire devices, the following items must be account- ed for in the hardware ...
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Table 1. DS3900 Command Protocol COMMAND Packet Write* Packet Read* 2-Wire Start* (and Repeated Start) 2-Wire Write Byte* 2-Wire Read Byte* 2-Wire Stop* Toggle SCL 9 Times Set Packet Device Address* Pulse Enable/Disable (Available after Rev 1.1) Pulse Fast/Slow (Available ...
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Serial Communications Module For Evaluation Kits Table 2. Bit I/O Addresses BIT I/O PIN ADDRESS # Using the DS3900 with 2-Wire Devices There are two modes that can be ...
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Table 4. Example of Writing to a DS1803 SEND START COMMAND, WRITE 0x23 TO POT 0, AND 0X34 TO POT 1, SEND STOP COMMAND SEQ # 1ST BYTE SENT 2ND BYTE SENT 1 0xA0 Place holder 2 0xA1 3 0xA1 ...
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Serial Communications Module For Evaluation Kits Table 5. Example of Reading from a DS1803 SEND START COMMAND, READ 0x23 FROM POT 0 AND 0x34 FROM POT 1, SEND STOP COMMAND SEQ # 1ST BYTE SENT 2ND BYTE SENT 0x00 1 ...
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The pin remains in a high-impedance state until a write operation is per- formed. As mentioned before, all I/O pins, except P3, are inputs on power-up. Note I/O pin is being ...
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Serial Communications Module For Evaluation Kits SYMPTOM Pulse function not operating properly DS3900 not found by software after reset 2-wire communication errors or general communication errors SDA or SCL line is stuck low Bit I/O operation not working as expected ...
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V CC JP1 (N.C.) RESET GND P4 P5 GND FEMALE HEADER 0.1µF 1µF Figure 2. DS3900 Schematic Serial Communications Module 2.2kΩ 4.7kΩ MA2YD15 RA2 RA1 RA0 RA3 RA4 MCLR OSC1 V OSC2 SS V ...
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Serial Communications Module For Evaluation Kits (N.C.) RESET GND P4 P5 GND Figure 3. DS3900 Layout 12 ____________________________________________________________________ TOP LAYOUT P11 P10 GND BOTTOM LAYOUT ...
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Figure 4. DS3900 Dimensions Note: The DS3900 mates with standard 2.54mm (0.100in male header connectors. These connectors do not come standard with the board (see Figure 5). Serial ...
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Serial Communications Module For Evaluation Kits Figure 5. Recommended PC Board Connection for DS3900 14 ____________________________________________________________________ 0.100" 0.025", 16 places 0.025" 16 places 0.100" 8 places 0.240",16 places 1.200" ...
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... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2004 Maxim Integrated Products is a registered trademark of Dallas Semiconductor Corporation ...