PIC18F2539T-I/SO Microchip Technology, PIC18F2539T-I/SO Datasheet - Page 6

• Manufacturer Part Number: PIC18F2539T-I/SO
• Description: IC MCU FLASH 12KX16 EE AD 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2539T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 24KB (12K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1408 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1408 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18FXX39
Depending on the 4-bit command, the 16-bit operand
represents 16 bits of input data, or 8 bits of input data
and 8 bits of output data.
Throughout this specification, commands and data are
presented as illustrated in Table 2-4. The 4-bit
command is shown MSb first. The command operand,
or “Data Payload”, is shown <MSB><LSB>. Figure 2-6
demonstrates how to serially present a 20-bit
command/operand to the device.
TABLE 2-4:
FIGURE 2-6:
DS30480C-page 6
Command
SCLK
1101
SDATA
4-bit
P3
Payload
4-bit Command
3C 40
1
P2
1
Data
SAMPLE COMMAND
SEQUENCE
2
P4
0
TABLE WRITE, POST-INCREMENT TIMING (1101)
3
1
Table Write,
post-increment by 2
4
1
P2A
P5
P2B
Core Instruction
1
0
2
0
0
3
0
4
0
5
0
Preliminary
SDATA = Input
6
0
16-bit Data Payload
4
7
1
8
0
2.6.2
The core instruction passes a 16-bit instruction to the
CPU core for execution. This is needed to setup
registers as appropriate for use with other commands.
9
0
10 11
0
C
1
12
1
CORE INSTRUCTION
13
1
14
1
3
15 16
0
 2010 Microchip Technology Inc.
0
P5A
Fetch Next 4-bit Command
1
n
2
n
3
n
4
n