PIC18F27J53T-I/SO Microchip Technology, PIC18F27J53T-I/SO Datasheet - Page 234

• Manufacturer Part Number: PIC18F27J53T-I/SO
• Description: 28-pin, USB, 128KB Flash, 4KB RAM, 12 MIPS, 12-bit ADC, NanoWatt XLP 28 SOIC .30
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F27J53T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2.15 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.8 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 8
• Operating Supply Voltage: 2.15 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC18F47J53 FAMILY
REGISTER 16-1:
16.2
The Timer4/6/8 modules have 8-bit Period registers,
PRx, that are both readable and writable. Timer4/6/8
increment from 00h until they match PR4/6/8 and then
reset to 00h on the next increment cycle. The PRx
registers are initialized to FFh upon Reset.
FIGURE 16-1:
DS39964B-page 234
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6-3
bit 2
bit 1-0
U-0
—
TxOUTPS<3:0>
TxCKPS<1:0>
F
OSC
Timer4/6/8 Interrupt
/4
Unimplemented: Read as ‘0’
TxOUTPS<3:0>: Timerx Output Postscale Select bits
0000 = 1:1 Postscale
0001 = 1:2 Postscale
•
•
•
1111 = 1:16 Postscale
TMRxON: Timerx On bit
1 = Timerx is on
0 = Timerx is off
TxCKPS<1:0>: Timerx Clock Prescale Select bits
00 = Prescaler is 1
01 = Prescaler is 4
1x = Prescaler is 16
TxOUTPS3
R/W-0
TxCON: TIMER4/6/8 CONTROL REGISTER (ACCESS F76h, BANKED F1Eh,
BANKED F1Bh)
TIMER4 BLOCK DIAGRAM
Internal Data Bus
1:1, 1:4, 1:16
2
W = Writable bit
‘1’ = Bit is set
Prescaler
TxOUTPS2
R/W-0
TxOUTPS1
4
R/W-0
TMRx
Preliminary
Reset
8
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
TxOUTPS0
R/W-0
16.3
The outputs of TMRx (before the postscaler) are used
only as a PWM time base for the ECCP modules. They
are not used as baud rate clocks for the MSSP
modules as is the Timer2 output.
Comparator
1:1 to 1:16
Postscaler
Output of TMRx
TMRx/PRx
Match
8
TMRxON
R/W-0
 2010 Microchip Technology Inc.
x = Bit is unknown
TxCKPS1
PRx
R/W-0
8
TMRx Output
(to PWM)
Set TMRxIF
TxCKPS0
R/W-0
bit 0