PIC18F4439T-E/PT Microchip Technology, PIC18F4439T-E/PT Datasheet - Page 101
![IC PIC MCU FLASH 6KX16 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4439T-E/PT
Manufacturer Part Number
PIC18F4439T-E/PT
Description
IC PIC MCU FLASH 6KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2439-ISO.pdf
(322 pages)
3.PIC18F2439-ISO.pdf
(6 pages)
4.PIC18F2439-ISO.pdf
(34 pages)
Specifications of PIC18F4439T-E/PT
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
32
Program Memory Size
12KB (6K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
640 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
640 B
Interface Type
I2C, SPI, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
32
Number Of Timers
16 bit
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 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
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4439T-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F2439-ISO PDF datasheet #2
- PIC18F2439-ISO PDF datasheet #3
- PIC18F2439-ISO PDF datasheet #4
- Current page: 101 of 322
- Download datasheet (7Mb)
10.0
The Timer0 module has the following features:
• Software selectable as an 8-bit or 16-bit
• Readable and writable
• Dedicated 8-bit software programmable prescaler
• Clock source selectable to be external or internal
• Interrupt-on-overflow from FFh to 00h in 8-bit
• Edge select for external clock
REGISTER 10-1:
2002 Microchip Technology Inc.
timer/counter
mode and FFFFh to 0000h in 16-bit mode
TIMER0 MODULE
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
T0CON: TIMER0 CONTROL REGISTER
Legend:
R = Readable bit
- n = Value at POR
bit 7
TMR0ON: Timer0 On/Off Control bit
1 = Enables Timer0
0 = Stops Timer0
T08BIT: Timer0 8-bit/16-bit Control bit
1 = Timer0 is configured as an 8-bit timer/counter
0 = Timer0 is configured as a 16-bit timer/counter
T0CS: Timer0 Clock Source Select bit
1 = Transition on T0CKI pin
0 = Internal instruction cycle clock (CLKO)
T0SE: Timer0 Source Edge Select bit
1 = Increment on high-to-low transition on T0CKI pin
0 = Increment on low-to-high transition on T0CKI pin
PSA: Timer0 Prescaler Assignment bit
1 = TImer0 prescaler is NOT assigned. Timer0 clock input bypasses prescaler.
0 = Timer0 prescaler is assigned. Timer0 clock input comes from prescaler output.
T0PS2:T0PS0: Timer0 Prescaler Select bits
111 = 1:256 prescale value
110 = 1:128 prescale value
101 = 1:64 prescale value
100 = 1:32 prescale value
011 = 1:16 prescale value
010 = 1:8 prescale value
001 = 1:4 prescale value
000 = 1:2 prescale value
TMR0ON
R/W-1
T08BIT
R/W-1
R/W-1
T0CS
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-1
T0SE
Figure 10-1 shows a simplified block diagram of the
Timer0 module in 8-bit mode and Figure 10-2 shows a
simplified block diagram of the Timer0 module in 16-bit
mode.
The T0CON register (Register 10-1) is a readable and
writable register that controls all the aspects of Timer0,
including the prescale selection.
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
PSA
T0PS2
R/W-1
PIC18FXX39
x = Bit is unknown
T0PS1
R/W-1
DS30485A-page 99
T0PS0
R/W-1
bit 0
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