MCP23018-E/SP Microchip Technology, MCP23018-E/SP Datasheet - Page 13

• Manufacturer Part Number: MCP23018-E/SP
• Description: IC I/O EXPANDER I2C 16B 28SDIP
• Manufacturer: Microchip Technology

Specifications of MCP23018-E/SP

• Package / Case: 28-DIP (0.300", 7.62mm)
• 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: Through Hole
• Logic Family: MCP23018
• 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: Through Hole
• Output Current: 25 mA
• Output Voltage: 1.8 V to 4.5 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: DIP
• No. Of Pins: 28
• Filter Terminals: DIP
• Rohs Compliant: Yes
• Delay Time: 50ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 1-5:
1.4.2
The MCP23018 is a slave I
bit slave addressing, with the read/write bit filling out
the control byte. The slave address contains four fixed
bits and three user-defined hardware address bits (pins
A2, A1, and A0).
format.
1.4.3
The MCP23S18 is a slave SPI device. The slave
address contains seven fixed bits(no address bits) with
the read/write bit filling out the control byte.
shows the control byte format.
© 2008 Microchip Technology Inc.
i2c_clk
i2c_addr[2:0]
V
adc_en
DD
ADDRESSING I
(MCP23018)
ADDRESSING SPI DEVICES
(MCP23S18)
Figure 1-6
t
ADEN
HARDWARE ADDRESS DECODE TIMING
2
C device that supports 7-
t
2
ADDRLAT
shows the control byte
C DEVICES
Figure 1-7
MCP23018/MCP23S18
FIGURE 1-6:
FIGURE 1-7:
Start
bit
CS
S
t
ADDIS
0
0
R/W = 0 = write
R/W = 1 = read
R/W = 0 = write
R/W = 1 = read
1
1
Slave Address
Slave Address
0
0
Control Byte
Control Byte
I
FORMAT
SPI CONTROL BYTE
FORMAT
0
2
0
C™ CONTROL BYTE
A2 A1 A0 R/W ACK
0
R/W bit
ACK bit
R/W bit
0
DS22103A-page 13
0
R/W