MCP23018-E/SS Microchip Technology, MCP23018-E/SS Datasheet - Page 8
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MCP23018-E/SS
Manufacturer Part Number
MCP23018-E/SS
Description
IC I/O EXPANDER I2C 16B 24SSOP
Manufacturer
Microchip Technology
Datasheet
1.MCP23018-ESO.pdf
(56 pages)
Specifications of MCP23018-E/SS
Package / Case
24-SSOP
Interface
I²C
Number Of I /o
16
Interrupt Output
Yes
Frequency - Clock
3.4MHz
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Logic Family
Interface ICs
Propagation Delay Time
50 ns
Operating Supply Voltage
1.8 V to 5.5 V
Power Dissipation
700 mW
Operating Temperature Range
- 40 C to + 125 C
Input Voltage
1.8 V to 5.5 V
Logic Type
I/O Expander
Maximum Clock Frequency
10 MHz
Maximum Operating Frequency
3.4 MHz
Mounting Style
SMD/SMT
Output Current
400 mA
Output Voltage
0.6 V to 4.8 V
Chip Configuration
16 Bit
Bus Frequency
3.4MHz
Ic Interface Type
I2C
No. Of I/o's
16
Supply Voltage Range
1.8V To 5.5V
Digital Ic Case Style
SSOP
No. Of Pins
24
Rohs Compliant
Yes
Interface Type
I2C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP23018-E/SS
Manufacturer:
Microchip
Quantity:
6 037
MCP23018/MCP23S18
1.3.2.2
I
as shown in the bottom of
followed by another control byte (including the Start
condition and ACK) with the R/W bit equal to a logic
one (R/W = 1). The MCP23018 then transmits the data
contained in the addressed register. The sequence is
ended with the master generating a Stop or Restart
condition.
1.3.2.3
For sequential operations (Write or Read), instead of
transmitting a Stop or Restart condition after the data
transfer, the master clocks the next byte pointed to by
the address pointer (see Section 1.3.1 “Byte Mode
and Sequential Mode” for details regarding sequential
operation control).
The sequence ends with the master sending a Stop or
Restart condition.
The MCP23018 address pointer will roll over to
address zero after reaching the last register address.
Refer to
DS22103A-page 8
2
C read operations include the control byte sequence,
Figure
I
I
2
2
C Read Operation
C Sequential Write/Read
1-1.
Figure
1-1. This sequence is
1.3.3
1.3.3.1
The SPI write operation is started by lowering CS. The
write command (slave address with R/W bit cleared) is
then clocked into the device. The opcode is followed by
an address and at least one data byte.
1.3.3.2
The SPI read operation is started by lowering CS. The
SPI read command (slave address with R/W bit set) is
then clocked into the device. The opcode is followed by
an address, with at least one data byte being clocked
out of the device.
1.3.3.3
For sequential operations, instead of deselecting the
device by raising CS, the master clocks the next byte
pointed to by the address pointer. (see Section 1.3.1
“Byte Mode and Sequential Mode” for details regard-
ing sequential operation control).
The sequence ends by the raising of CS.
The MCP23S18 address pointer will roll over to
address zero after reaching the last register address.
SPI INTERFACE
SPI Write Operation
SPI Read Operation
SPI Sequential Write/Read
© 2008 Microchip Technology Inc.