PIC16F877-04E/PQ Microchip Technology, PIC16F877-04E/PQ Datasheet - Page 59
![IC MCU FLASH 8KX14 EE 44-MQFP](/photos/6/59/65984/150-44-pqfp_sml.jpg)
PIC16F877-04E/PQ
Manufacturer Part Number
PIC16F877-04E/PQ
Description
IC MCU FLASH 8KX14 EE 44-MQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16C770-ISO.pdf
(8 pages)
4.PIC16F873-04SO.pdf
(218 pages)
5.PIC16F873-04SO.pdf
(5 pages)
6.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F877-04E/PQ
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
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
368 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
44-MQFP, 44-PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PIC16F87704E/PQ
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F877-04E/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- PIC16F873-04SO PDF datasheet #6
- Current page: 59 of 688
- Download datasheet (3Mb)
1997 Microchip Technology Inc.
Some devices do not have the on-chip brown-out circuit, and in other cases there are some appli-
cations where the Brown-out Reset trip point of the device may not be at the desired level.
Figure 3-10
Each needs to be evaluated to determine if they match the requirements of the application.
Figure 3-10: External Brown-out Protection Circuit 1
Figure 3-11: External Brown-out Protection Circuit 2
Note 1: This brown-out circuit is less expensive, albeit less accurate. Transistor Q1 turns
This circuit will activate reset when V
where Vz = Zener voltage.
Note 1: Internal Brown-out Reset circuitry should be disabled when using this circuit.
2: Internal Brown-out Reset circuitry should be disabled when using this circuit.
3: Resistors should be adjusted for the characteristics of the transistor.
2: Resistors should be adjusted for the characteristics of the transistor.
off when V
and
Figure 3-11
V
DD
•
DD
R1 + R2
is below a certain level such that:
R1
are two examples of external circuitry that may be implemented.
33 k
R1
R2
V
V
DD
DD
= 0.7V
10 k
DD
40 k
goes below (Vz + 0.7V)
40 k
Q1
Q1
Section 3. Reset
PIC16CXXX
MCLR
V
MCLR
PIC16CXXX
V
DD
DD
DS31003A-page 3-9
3
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