PIC18F27J53T-I/ML Microchip Technology, PIC18F27J53T-I/ML Datasheet - Page 209
![IC MCU 8BIT 128KB FLASH 28QFN](/photos/29/8/290841/qfn-28_sml.jpg)
PIC18F27J53T-I/ML
Manufacturer Part Number
PIC18F27J53T-I/ML
Description
IC MCU 8BIT 128KB FLASH 28QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18F27J53T-I/ML
Program Memory Type
FLASH
Program Memory Size
128KB (64K x 16)
Package / Case
*
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
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
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
Lead free / RoHS Compliant
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13.0
The Timer1 timer/counter module incorporates these
features:
• Software selectable operation as a 16-bit timer or
• Readable and writable 8-bit registers (TMR1H
• Selectable clock source (internal or external) with
• Interrupt-on-overflow
• Reset on ECCP Special Event Trigger
• Device clock status flag (SOSCRUN)
• Timer with gated control
REGISTER 13-1:
2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5-4
bit 3
bit 2
bit 1
bit 0
Note 1:
TMR1CS1
counter
and TMR1L)
device clock or Timer1 oscillator internal options
R/W-0
2:
TIMER1 MODULE
The F
The Timer1 oscillator crystal driver is powered whenever T1OSCEN (T1CON<3>) or T3OSCEN
(T3CON<3>) = 1. The circuit is enabled by the logical OR of these two bits. When disabled, the inverter and
feedback resistor are disabled to eliminate power drain. The TMR1ON and TMR3ON bits do not have to be
enabled to power up the crystal driver.
TMR1CS<1:0>: Timer1 Clock Source Select bits
10 = Timer1 clock source is the T1OSC or T1CKI pin
01 = Timer1 clock source is the system clock (F
00 = Timer1 clock source is the instruction clock (F
T1CKPS<1:0>: Timer1 Input Clock Prescale Select bits
11 = 1:8 Prescale value
10 = 1:4 Prescale value
01 = 1:2 Prescale value
00 = 1:1 Prescale value
T1OSCEN: Timer1 Oscillator Source Select bit
When TMR1CS<1:0> = 10:
1 = Power up the Timer1 crystal driver and supply the Timer1 clock from the crystal output
0 = Timer1 crystal driver is off, Timer1 clock is from the T1CKI input pin
When TMR1CS<1:0> = 0x:
1 = Power up the Timer1 crystal driver
0 = Timer1 crystal driver is off
T1SYNC: Timer1 External Clock Input Synchronization Select bit
TMR1CS<1:0> = 10:
1 = Do not synchronize external clock input
0 = Synchronize external clock input
TMR1CS<1:0> = 0x:
This bit is ignored. Timer1 uses the internal clock when TMR1CS<1:0> = 0x.
RD16: 16-Bit Read/Write Mode Enable bit
1 = Enables register read/write of Timer1 in one 16-bit operation
0 = Enables register read/write of Timer1 in two 8-bit operations
TMR1ON: Timer1 On bit
1 = Enables Timer1
0 = Stops Timer1
TMR1CS0
R/W-0
OSC
clock source should not be selected if the timer will be used with the ECCP capture/compare features.
T1CON: TIMER1 CONTROL REGISTER (ACCESS FCDh)
W = Writable bit
‘1’ = Bit is set
T1CKPS1
R/W-0
(2)
T1CKPS0
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
T1OSCEN
OSC
PIC18F47J53 FAMILY
R/W-0
Figure 13-1 displays a simplified block diagram of the
Timer1 module.
The module incorporates its own low-power oscillator
to provide an additional clocking option. The Timer1
oscillator can also be used as a low-power clock source
for the microcontroller in power-managed operation.
Timer1 is controlled through the T1CON Control
register (Register 13-1). It also contains the Timer1
Oscillator Enable bit (T1OSCEN). Timer1 can be
enabled or disabled by setting or clearing control bit,
TMR1ON (T1CON<0>).
The F
be used with the ECCP capture/compare features. If the
timer will be used with the capture or compare features,
always select one of the other timer clocking options.
OSC
)
(1)
/4)
OSC
clock source (TMR1CS<1:0> = 01) should not
T1SYNC
R/W-0
(2)
x = Bit is unknown
R/W-0
RD16
DS39964B-page 209
TMR1ON
R/W-0
bit 0
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