PIC16F874-04/PT Microchip Technology, PIC16F874-04/PT Datasheet - Page 488
![IC MCU FLASH 4KX14 EE 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16F874-04/PT
Manufacturer Part Number
PIC16F874-04/PT
Description
IC MCU FLASH 4KX14 EE 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F874-04/PT
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Oscillator Type
External
Core Processor
PIC
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC16F
No. Of I/o's
33
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
4MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04/PT
Manufacturer:
MICROCHIP
Quantity:
4 500
Company:
Part Number:
PIC16F874-04/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 488 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
26.3
DS31026A-page 26-4
Watchdog Timer (WDT) Operation
During normal operation, a WDT time-out generates a device RESET. If the device is in SLEEP
mode, a WDT time-out causes the device to wake-up and continue with normal operation, this is
known as a WDT wake-up. The WDT can be permanently disabled by clearing the WDTE con-
figuration bit.
The postscaler assignment is fully under software control, i.e., it can be changed “on the fly” dur-
ing program execution.
In
final desired prescaler is other then 1:1. If the final prescaler value is 1:1, then a temporary pres-
cale value is set (other than 1:1), and the final prescale value is set in the last modification of the
OPTION_REG. This sequence must be followed since the value in the TMR0 prescaler is
unknown, and is being used as the WDT postscaler. If the OPTION_REG is changed without this
code sequence, the time before a WDT reset is unknown.
Example
Note:
26-1, the first modification of the OPTION_REG does not need to be included if the
To avoid an unintended device RESET, the following instruction sequence (shown
in
Timer0 to the postscaler of the WDT. This sequence must be followed even if the
WDT is disabled.
Example
26-1) must be executed when changing the prescaler assignment from
1997 Microchip Technology Inc.
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