PIC16F874A-E/PT Microchip Technology, PIC16F874A-E/PT Datasheet - Page 54
![IC MCU FLASH 4KX14 W/AD 44-TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16F874A-E/PT
Manufacturer Part Number
PIC16F874A-E/PT
Description
IC MCU FLASH 4KX14 W/AD 44-TQFP
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.PIC16F873A-ISO.pdf
(234 pages)
5.PIC16F873A-ISO.pdf
(6 pages)
6.PIC16F873A-ISO.pdf
(4 pages)
7.PIC16F873A-ISO.pdf
(6 pages)
8.PIC16F873A-ISO.pdf
(4 pages)
9.PIC16F873A-ISO.pdf
(22 pages)
Specifications of PIC16F874A-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
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
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874A-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16F873A-ISO PDF datasheet #4
- PIC16F873A-ISO PDF datasheet #5
- PIC16F873A-ISO PDF datasheet #6
- PIC16F873A-ISO PDF datasheet #7
- PIC16F873A-ISO PDF datasheet #8
- PIC16F873A-ISO PDF datasheet #9
- Current page: 54 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
3.2
3.2.1
DS31003A-page 3-4
Power-on Reset (POR)
Power-on Reset (POR), Power-up Timer (PWRT),
Oscillator Start-up Timer (OST), Brown-out Reset (BOR), and Parity Error Reset (PER)
A Power-on Reset pulse is generated on-chip when V
the POR, just tie the MCLR pin directly (or through a resistor) to V
will eliminate external RC components usually needed to create a Power-on Reset. A minimum
rise time for V
ifications”
Figure 3-2: Using On-Chip POR
When the device exits the reset condition (begins normal operation), the device operating param-
eters (voltage, frequency, temperature, etc.) must be within their operating ranges, otherwise the
device will not function correctly. Ensure the delay is long enough to get all operating parameters
within specification.
Figure 3-3
Reset circuit is only required if V
capacitor quickly when V
Figure 3-3: External Power-on Reset Circuit (For Slow V
Note:
Note:
shows a possible POR circuit for a slow power supply ramp up. The external Power-on
section for details.
R < 40 k
exceed 0.2V. A larger voltage drop will degrade V
DD
The resistor is optional.
is required. See
is recommended to ensure that the voltage drop across R does not
DD
powers down.
V
DD
DD
D
parameter D003
power-up time is too slow. The diode, D, helps discharge the
V
V
DD
DD
R
R
(1)
C
PIC16CXXX
V
MCLR
DD
and
MCLR
V
PIC16CXXX
DD
DD
parameter D004
rise is detected. To take advantage of
DD
IH
Power-up)
DD
level on the MCLR/V
1997 Microchip Technology Inc.
as shown in
in the
“Electrical Spec-
Figure
PP
3-2. This
pin.
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