MAX7312 Maxim, MAX7312 Datasheet
MAX7312
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MAX7312 Summary of contents
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... INT output, SDA, SCL, and the slave address inputs AD0-2 remain high impedance in power-down ( 6V. The MAX7312 is available in 24-pin SO, SSOP, TSSOP, and thin QFN packages and is specified over the -40°C to +125°C automotive temperature range. For applications requiring I/Os with integrated 100kΩ ...
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... DC Output Current on I/O0–I/O15 ....................................±80mA Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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... Interrupt Reset Note 1: All parameters are 100% production tested at T Note 2: Minimum SCL clock frequency is limited by the MAX7312 bus timeout feature, which resets the serial bus interface if either SDA or SCL is held low for a minimum of 25ms. Disable bus timeout feature for DC operation. ...
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I/O Port Expander with Interrupt and Hot-Insertion Protection (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 100 f = 400kHz SCL 90 ALL I/Os UNLOADED ...
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I/O Port Expander with Interrupt and Hot-Insertion Protection (T = +25°C, unless otherwise noted.) A I/O SOURCE CURRENT vs. OUTPUT HIGH VOLTAGE -40° +25°C 30 ...
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... HD, DAT t F REPEATED START CONDITION The MAX7312 operates as a slave that sends and receives data through a 2-wire interface. The interface uses a serial data line (SDA) and a serial clock line (SCL) to achieve bidirectional communication between master(s) and slave(s). A master, typically a microcon- ...
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... SDA BY RECEIVER Figure 5. Acknowledge Each transmission consists of a START condition sent by a master, followed by the MAX7312 7-bit slave address plus R/W bit, a register address byte more data bytes, and finally a STOP condition (Figure 3). START and STOP Conditions Both SCL and SDA remain high when the interface is not busy ...
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... Figure 7). The command byte is used to deter- mine which of the following registers are written or read. Transmit data to the MAX7312 by sending the device slave address and setting the LSB to a logic zero. The command byte is sent after the address and deter- ...
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... After a restart, the bus master must then send the MAX7312 address with the R/W bit set to 1. Data from the register defined by the com- mand byte is then sent from the MAX7312 to the master (Figures 8, 9). ACKNOWLEDGE DATA FROM LOWER OR ...
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I/O Port Expander with Interrupt and Hot-Insertion Protection Data is clocked into a register on the falling edge of the acknowledge clock pulse. After reading the first byte, additional bytes may be read and reflect the content in ...
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... Standby supply current is typically 2.9µA. The I/O ports I/O0–I/O15 interrupt output INT, and serial interfaces SDA, SCL, AD0-2 remain high impedance with asserted on them when the MAX7312 is powered down (V+ = 0V). The MAX7312 can therefore be used in hot-swap applications. The MAX7312 operates from a supply voltage 5.5V. Bypass the power supply to GND with a 0.047µ ...
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... I/O Port Expander with Interrupt and Hot-Insertion Protection Table 7. MAX7312 Address Map AD2 AD1 AD0 GND SCL GND + GND SCL V GND SDA GND + GND SDA SCL GND + + V SCL SDA GND + + V SDA V GND SCL SCL GND SCL SDA GND ...
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... I/O Port Expander with Interrupt and Hot-Insertion Protection Table 7. MAX7312 Address Map (continued) AD2 AD1 AD0 SCL SCL GND + SCL SCL V SCL SDA GND + SCL SDA V SDA SCL GND + SDA SCL V SDA SDA GND + SDA SDA V SCL SCL SCL SCL ...
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... I/O Port Expander with Interrupt and Hot-Insertion Protection (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW 14 ______________________________________________________________________________________ 0∞-8∞ ...
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... I/O Port Expander with Interrupt and Hot-Insertion Protection (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages NOTES: 1. D&E DO NOT INCLUDE MOLD FLASH. 2. MOLD FLASH OR PROTRUSIONS NOT TO EXCEED .15 MM (.006"). ...
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... For the latest package outline information www.maxim-ic.com/packages.) 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. ...