MAX7328 Maxim, MAX7328 Datasheet
MAX7328
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MAX7328 Summary of contents
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... Transitions are alerted through the open-drain, 5.5V-tolerant INT output. The MAX7328 and MAX7329 versions differ only by their slave ID address ranges. The MAX7328 has a slave ID range of 0100xxx (0x20 to 0x27). The MAX7329 has a slave ID range of 0111xxx (0x38 to 0x3F). For a similar part with overvoltage-protected I/Os and a ...
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... Total GND Current ............................................................100mA 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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I C Port Expanders with Eight I/O Ports PORT AND INTERRUPT INT TIMING CHARACTERISTICS (Typical Operating Circuit 2.5V to 5.5V, T (Note 1) PARAMETER SYMBOL Port Output Data Valid Port Input Setup Time Port Input Hold Time ...
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... Interrupt Output. INT is an open-drain output rated at 5.5V C-Compatible Serial-Clock Input 2 I C-Compatible Serial-Data I/O Positive Supply Voltage. Bypass V+ to GND with a 0.047µF ceramic capacitor. No Connection. Internally not connected. 100µ CLK S Pin Description FUNCTION V+ MAX7328 MAX7329 P0–P7 GND TO INTERRUPT LOGIC ...
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... The MAX7328/MAX7329 do not distinguish between a port used as an input and a port used as an output that happens to be high. When a MAX7328 or MAX7329 is read through the serial inter- face, the actual logic levels at the port pins are read back. _______________________________________________________________________________________ ...
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... A master initiates all data transfers to and from the MAX7328 or MAX7329, and generates the SCL clock that synchronizes the data transfer (Figure 3). The MAX7328 or MAX7329 SDA line operates as both an input and an open-drain output. A pullup resistor, DATA TO PORT A ...
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... A6 A5 MSB SCL Figure 7. Slave Address _______________________________________________________________________________________ Each transmission consists of a START condition (Figure 4) sent by a master, followed by the MAX7328 or MAX7329 7-bit slave address plus R/W bit, a register address byte, one or more data bytes, and finally a STOP condition (Figure 4). P STOP CONDITION Both SCL and SDA remain high when the interface is not busy ...
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... R/W bit set high. The MAX7328 or MAX7329 acknowledges the slave address, and samples the input ports (takes a snapshot) during acknowledge. Typically, the master reads bytes from the MAX7328 or MAX7329, each byte being acknowledged by the mas- ter on reception, with exception of the last byte. ...
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... STOP condition (Figure 10). Applications Information The MAX7328/MAX7329’s SDA, SCL, AD0, AD1, AD2, RST, and P0–P7 I/Os remain high impedance with up to +6V asserted on them when the MAX7328 or MAX7329 is powered down (V+ = 0V). The MAX7328/MAX7329 can therefore be used in hot-swap applications. _______________________________________________________________________________________ ...
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... I C Port Expanders with Eight I/O Ports SCL SLAVE ADDRESS S SDA START CONDITION INTERNAL WRITE TO PORT DATA OUT FROM PORT Figure 10. Writing to the MAX7328/MAX7329 C BUS RST 2 PART I MAX7319 Yes MAX7320 Yes MAX7321 Yes MAX7322 Yes MAX7323 Yes MAX7328 — MAX7329 — ...
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... I C Port Expanders with Eight I/O Ports (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 ______________________________________________________________________________________ 0∞-8∞ L SIDE VIEW ...
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... I C Port Expanders with Eight I/O Ports (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.) 12 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE, TSSOP 4.40mm BODY 21-0066 ...
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... MEETS JEDEC MO150. 5. LEADS TO BE COPLANAR WITHIN 0.10 MM. 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. ...