MCP23017T-E/ML MCP23017 by Microchip Technology
16-BIT I/O EXPANDERS WITH I2C & SPI INTERFACE
| Status: | Unknown |
|---|---|
| Series: | - |
| RoHS: | Unknown |
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.
Where to Buy
Prices starting from US$1.05
| Distributor | Stock | ||
|---|---|---|---|
|
RS
from US$1.05
|
7,565
in stock
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|
Microchip Technology
from US$1.37
|
449,490
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|
Farnell
from US$1.37
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16,852
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|
element14
from US$1.47
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14,730
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Distrelec
from US$1.17
|
1,590
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Newark Electronics
from US$1.54
|
1,075
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Future Electronics
from US$1.50
|
-
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|
Avnet America
from US$1.54
|
-
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|
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RS Americas
from US$1.82
|
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|
EBV Elektronik
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Avnet Silica
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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 EXPA,16BIT,I2C,1.8 V,5.5 V,QFN28PINS | Farnell |
| 16-bit Input/Output Expander, I2C interf | RS |
| Microchip I/O Expander, I²C, Number of I/Os %3D 16, QFN-28 | Distrelec |
| I/O Expander, 16Bit, 1.7Mhz, Qfn-16 | Newark Electronics |
| MCP23017 Series 5.5 V 1.7 MHz SMT 16-Bit I2C I/O Expander - QFN-28 | Future Electronics |
| I/O Expander 28-Pin QFN EP T/R | Avnet America |
| 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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The MCP23017T-E/ML is listed under MCP23017.
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Is the MCP23017T-E/ML RoHS compliant?
This part has not been flagged as RoHS Compliant.
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