PIC16F874-04E/P Microchip Technology, PIC16F874-04E/P Datasheet - Page 64
![IC MCU FLASH 4KX14 EE 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC16F874-04E/P
Manufacturer Part Number
PIC16F874-04E/P
Description
IC MCU FLASH 4KX14 EE 40DIP
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 PIC16F874-04E/P
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
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
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PIC16F87404E/P
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04E/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
PIC16F874-04E/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: 64 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
3.3.1
DS31003A-page 3-14
Power Control (PCON) and STATUS Registers
bit 7
bit 6:3
bit 2
bit 1
bit 0
The Power Control (PCON) register contains a status bit to allow differentiation between a
Power-on Reset (POR) to an external MCLR Reset or WDT Reset. It also contains a status bit to
determine if a Brown-out Reset (BOR) occurred. The power control/status register, PCON has
up to four bits.
The BOR (Brown-out Reset) bit, is unknown on a Power-on-reset. It must initially be set by the
user and checked on subsequent resets to see if BOR = '0' indicating that a Brown-out Reset has
occurred. The BOR status bit is a “don’t care” bit and is not necessarily predictable if the
brown-out circuit is disabled (by clearing the BODEN bit in the Configuration word).
The POR (Power-on Reset) bit, is cleared on a Power-on Reset and is unaffected otherwise. The
user sets this bit following a Power-on Reset. On subsequent resets if POR is ‘0’, it will indicate
that a Power-on Reset must have occurred.
The PER (Parity Error Reset) bit, is cleared on a Parity Error Reset and must be set by user soft-
ware. It will also be set on a Power-on Reset.
The MPEEN (Memory Parity Error Enable) bit, reflects the status of the MPEEN bit in configura-
tion word. It is unaffected by any reset or interrupt.
Register 3-1: PCON Register
bit 7
MPEEN: Memory Parity Error Circuitry Status bit
This bit reflects the value of the MPEEN configuration bit.
Unimplemented: Read as '0'
PER: Memory Parity Error Reset Status bit
1 = No parity error reset occurred
0 = A program memory fetch parity error occurred
POR: Power-on Reset Status bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit
1 = No Brown-out Reset occurred
0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset or
Legend
R = Readable bit
U = Unimplemented bit, read as ‘0’
MPEEN
Note:
Note:
R-u
(must be set in software after a Power-on Reset or Parity Error Reset occurs)
Power-on Reset occurs)
BOR is unknown on Power-on Reset. It must then be set by the user and checked
on subsequent resets to see if BOR is clear, indicating a brown-out has occurred.
The BOR status bit is a don't care and is not necessarily predictable if the brown-out
circuit is disabled (by clearing the BODEN bit in the Configuration word).
Not all bits may be implemented.
U-0
—
W = Writable bit
U-0
—
U-0
—
u = unchanged bit
- n = Value at POR reset
U-0
—
R/W-0
PER
1997 Microchip Technology Inc.
R/W-0
POR
bit 0
R/W-0
BOR
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