PIC18F85J90-I/PT Microchip Technology, PIC18F85J90-I/PT Datasheet - Page 13

• Manufacturer Part Number: PIC18F85J90-I/PT
• Description: IC PIC MCU FLASH 16KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F85J90-I/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 67
• Ram Memory Size: 2KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• No. Of Pwm Channels: 2
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: AUSART, EUSART, I2C, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 67
• Number Of Timers: 4
• 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: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136, DM163030
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 80TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

FIGURE 2-11:
2.5
The PGC pin is used as a clock input pin and the PGD
pin is used for entering command bits and data
input/output during serial operation. Commands and
data are transmitted on the rising edge of PGC, latched
on the falling edge of PGC and are Least Significant bit
(LSb) first.
2.5.1
All instructions are 20 bits, consisting of a leading 4-bit
command followed by a 16-bit operand, which depends
on the type of command being executed. To input a
command, PGC is cycled four times. The commands
needed for programming and verification are shown in
Table 2-3.
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.
FIGURE 2-12:
 2009 Microchip Technology Inc.
PGC
PGD
PGD
PGC
MCLR
V
DD
Serial Program/Verify Operation
4-BIT COMMANDS
P3
4-Bit Command
1
P2
1
2
P4
0
EXITING
PROGRAM/VERIFY MODE
TABLE WRITE, POST-INCREMENT TIMING (
3
PGD = Input
1
4
V
P16
1
IH
P2A
P5
P2B
1
0
V
IH
2
0
0
3
0
4
0
5
0
6
PGD = Input
0
16-Bit Data Payload
4
7
1
8
0
PIC18F6XJXX/8XJXX
9
Throughout this specification, commands and data are
presented as illustrated in Table 2-4. The 4-bit command
is shown, Most Significant bit (MSb) first. The command
operand, or “Data Payload”, is shown <MSB><LSB>.
Figure 2-12 demonstrates how to serially present a
20-bit command/operand to the device.
2.5.2
The core instruction passes a 16-bit instruction to the
CPU core for execution. This is needed to set up
registers as appropriate for use with other commands.
TABLE 2-3:
TABLE 2-4:
0
Core Instruction
(Shift in 16-bit instruction)
Shift Out TABLAT Register
Table Read
Table Read, Post-Increment
Table Read, Post-Decrement
Table Read, Pre-Increment
Table Write
Table Write, Post-Increment by 2
Table Write, Start Programming,
Post-Increment by 2
Table Write, Start Programming
Command
10
1101
0
4-Bit
C
11
1
12
1101
1
CORE INSTRUCTION
13
Description
Payload
1
3C 40
Data
)
14
COMMANDS FOR
PROGRAMMING
SAMPLE COMMAND
SEQUENCE
1
3
15
0
16
Table Write,
post-increment by 2
0
P5A
Fetch Next 4-Bit Command
Core Instruction
1
n
2
n
DS39644L-page 13
3
n
Command
4
n
0000
0010
1000
1001
1010
1011
1100
1101
1110
1111
4-Bit