PIC18F2539-I/SP Microchip Technology, PIC18F2539-I/SP Datasheet - Page 111

IC MCU FLASH 12KX16 EE A/D 28DIP

PIC18F2539-I/SP

Manufacturer Part Number
PIC18F2539-I/SP
Description
IC MCU FLASH 12KX16 EE A/D 28DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr

Specifications of PIC18F2539-I/SP

Core Size
8-Bit
Program Memory Size
24KB (12K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
21
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-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
21
Eeprom Memory Size
256Byte
Ram Memory Size
1.375KB
Cpu Speed
40MHz
No. Of Timers
4
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
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
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
10 bit, 5 Channel
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
DVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / Rohs Status
 Details
13.0
The Timer3 module timer/counter has the following
features:
• 16-bit timer/counter
• Readable and writable (both registers)
• Internal or external clock select
• Interrupt-on-overflow from FFFFh to 0000h
REGISTER 13-1:
 2002 Microchip Technology Inc.
(two 8-bit registers: TMR3H and TMR3L)
TIMER3 MODULE
bit 7
bit 6, 3
bit 5, 4
bit 2
bit 1
bit 0
T3CON: TIMER3 CONTROL REGISTER
bit 7
RD16: 16-bit Read/Write Mode Enable bit
1 = Enables register read/write of Timer3 in one 16-bit operation
0 = Enables register read/write of Timer3 in two 8-bit operations
Unimplemented: Maintain as ‘0’
T3CKPS1:T3CKPS0: Timer3 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
T3SYNC: Timer3 External Clock Input Synchronization Control bit
(Not usable if the system clock comes from Timer1/Timer3)
When TMR3CS = 1:
1 = Do not synchronize external clock input
0 = Synchronize external clock input
When TMR3CS = 0:
This bit is ignored. Timer3 uses the internal clock when TMR3CS = 0.
TMR3CS: Timer3 Clock Source Select bit
1 = External clock input from T13CKI
0 = Internal clock (F
TMR3ON: Timer3 On bit
1 = Enables Timer3
0 = Stops Timer3
Legend:
R = Readable bit
- n = Value at POR
R/W-0
RD16
(on the rising edge after the first falling edge)
R/W-0
OSC
T3CKPS1 T3CKPS0
/4)
R/W-0
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-0
Figure 13-1 is a simplified block diagram of the Timer3
module.
Register 13-1 shows the Timer1 control register, which
sets the Operating mode of the Timer1 module.
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
T3SYNC
R/W-0
PIC18FXX39
TMR3CS
x = Bit is unknown
R/W-0
DS30485A-page 109
TMR3ON
R/W-0
bit 0

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