PIC24FJ64GB002-I/SS Microchip Technology, PIC24FJ64GB002-I/SS Datasheet - Page 181

• Manufacturer Part Number: PIC24FJ64GB002-I/SS
• Description: 16-bit, 16 MIPS, 64KB Flash, 8KB RAM, Nanowatt XLP, USB OTG 28 SSOP .209in TUBE
• Manufacturer: Microchip Technology

Specifications of PIC24FJ64GB002-I/SS

• Processor Series: PIC24
• Core: PIC24F
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 8192 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 5
• Operating Supply Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Development Tools By Supplier: MPLAB Integrated Development Environment
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current (max): 300 mA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

16.0
The Inter-Integrated Circuit (I
interface useful for communicating with other peripheral
or microcontroller devices. These peripheral devices
may be serial EEPROMs, display drivers, A/D
Converters, etc.
The I
• Independent master and slave logic
• 7-bit and 10-bit device addresses
• General call address as defined in the I
• Clock stretching to provide delays for the
• Both 100 kHz and 400 kHz bus specifications.
• Configurable address masking
• Multi-Master modes to prevent loss of messages
• Bus Repeater mode, allowing the acceptance of
• Automatic SCL
A block diagram of the module is shown in Figure 16-1.
 2010 Microchip Technology Inc.
Note:
processor to respond to a slave data request
in arbitration
all messages as a slave regardless of the address
2
C module supports these features:
INTER-INTEGRATED CIRCUIT
(I
2
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
Section 24. “Inter-Integrated Circuit™
(I
C™)
2
C™)” (DS39702).
Family
2
C) module is a serial
Reference
2
C protocol
Manual”,
PIC24FJ64GB004 FAMILY
16.1
The details of sending a message in Master mode
depends on the communications protocol for the device
being communicated with. Typically, the sequence of
events is as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Wait for and verify an Acknowledge from the
11. Enable master reception to receive serial
12. Generate an ACK or NACK condition at the end
13. Generate a Stop condition on SDAx and SCLx.
Assert a Start condition on SDAx and SCLx.
Send the I
with a write indication.
Wait for and verify an Acknowledge from the
slave.
Send the first data byte (sometimes known as
the command) to the slave.
Wait for and verify an Acknowledge from the
slave.
Send the serial memory address low byte to the
slave.
Repeat steps 4 and 5 until all data bytes are
sent.
Assert a Repeated Start condition on SDAx and
SCLx.
Send the device address byte to the slave with
a read indication.
slave.
memory data.
of a received byte of data.
Communicating as a Master in a
Single Master Environment
2
C device address byte to the slave
DS39940D-page 181