MCP23017T-E/ML MCP23017 by Microchip Technology

16-BIT I/O EXPANDERS WITH I2C & SPI INTERFACE

Status: Unknown
Series: -
RoHS: Unknown
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The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface:
• MCP23017 – I2C interface
• MCP23S17 – SPI interface
The MCP23X17 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B). The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.

The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23X17 can be configured to operate in the 8-bit or 16-bit modes via IOCON.BANK. There are two interrupt pins, INTA and INTB, that can be associated with their respective ports, or can be logically OR’ed together so that both pins will activate if either port causes an interrupt. The interrupt output can be configured to activate under two conditions (mutually exclusive):
1. When any input state differs from its corresponding Input Port register state. This is used to indicate to the system master that an input state has changed.
2. When an input state differs from a preconfigured register value (DEFVAL register).

The Interrupt Capture register captures port values at the time of the interrupt, thereby saving the condition that caused the interrupt. The Power-on Reset (POR) sets the registers to their default values and initializes the device state machine. The hardware address pins are used to determine the device address.


Prices starting from US$1.37


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Logo for Microchip Technology Microchip Technology US$1.37
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Logo for element14 element14 US$1.62
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Logo for Farnell Farnell US$1.54
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Logo for Future Electronics Future Electronics US$1.56
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Logo for Distrelec Distrelec US$1.78
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Logo for Newark Electronics Newark Electronics US$1.54
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Logo for Avnet Silica Avnet Silica -
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Logo for Avnet America Avnet America US$1.90
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Logo for RS Americas RS Americas US$1.62
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Features

 
16-bit input/output port expander with interrupt output
Cascadable for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports 100kHz, 400kHz and 1.7MHz I2C™Compatible compatible modes    

Specifications

Device Description 35
Operating Voltage Min. (V) 1.8
Operating Voltage Max. (V) 5.5
Temp Range Min -40
Temp. Range Max. 125
Interface 524288
Max. Bus Frequency (kBits/s) 1700
I/O Pins 16
Speed 1.7M
HW Address Pins 3
Interrupt Out Pin 2
Reset Pin Yes
Edge Detection Yes
Pin Current (mA) 25
Total Current (mA) 160
IO Voltage Tolerant VDD
Temperature E
Temperature Range -40C to +125C

Alternative Descriptions

I/O EXPANDER, 16BIT, 1.7MHZ, QFN-16 | element14
16-bit Input/Output Expander, I2C interf | RS
MCP23017 Series 5.5 V 1.7 MHz SMT 16-Bit I2C I/O Expander - QFN-28 | Future Electronics
Microchip I/O Expander, I²C, Number of I/Os %3D 16, QFN-28 | Distrelec
I/O Expander, 16Bit, 1.7Mhz, Qfn-16 | Newark Electronics
I/O Expander 28-Pin QFN EP T/R | Avnet Silica
16-bit Input/Output Expander, I2C interface, Pb-free28 QFN 6x6x0.9mm T/R | Microchip Technology Inc. MCP23017T-E/ML | RS Americas


Frequently Asked Questions

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What category does MCP23017T-E/ML fall under?

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This part has not been flagged as RoHS Compliant.

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