PIC16F819-E/ML Microchip Technology, PIC16F819-E/ML Datasheet - Page 104
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PIC16F819-E/ML
Manufacturer Part Number
PIC16F819-E/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(176 pages)
4.PIC16F818-ISO.pdf
(6 pages)
5.PIC16F818-ISO.pdf
(8 pages)
6.PIC16F818-ISO.pdf
(8 pages)
Specifications of PIC16F819-E/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
I2C, SPI, SSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
1 x 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
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014
Minimum Operating Temperature
- 40 C
On-chip Adc
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT28QFN3 - SOCKET TRAN ICE 18DIP/28QFNAC164033 - ADAPTER 28QFN TO 18DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Lead Free Status / Rohs Status
Details
PIC16F818/819
12.18 Low-Voltage ICSP Programming
The LVP bit of the Configuration Word register enables
Low-Voltage ICSP Programming. This mode allows the
microcontroller to be programmed via ICSP using a
V
means that V
can instead be left at the normal operating voltage. In
this mode, the RB3/PGM pin is dedicated to the
programming function and ceases to be a general
purpose I/O pin.
If Low-Voltage Programming mode is not used, the LVP
bit can be programmed to a ‘0’ and RB3/PGM becomes
a digital I/O pin. However, the LVP bit may only be
programmed when Programming mode is entered with
V
using high voltage on MCLR.
It should be noted that once the LVP bit is programmed
to ‘0’, only the High-Voltage Programming mode is
available and only this mode can be used to program
the device.
When using Low-Voltage ICSP, the part must be
supplied at 4.5V to 5.5V if a bulk erase will be executed.
This includes reprogramming of the code-protect bits
from an ON state to an OFF state. For all other cases of
Low-Voltage ICSP, the part may be programmed at the
normal operating voltage. This means calibration values,
unique user IDs or user code can be reprogrammed or
added.
The following LVP steps assume the LVP bit is set in the
Configuration Word register.
1.
2.
3.
4.
5.
DS39598E-page 102
IHH
DD
Apply V
Drive MCLR low.
Apply V
Apply V
Follow with the associated programming steps.
source in the operating voltage range. This only
on MCLR. The LVP bit can only be changed when
DD
DD
DD
PP
to the V
to the RB3/PGM pin.
to the MCLR pin.
does not have to be brought to V
DD
pin.
IHH
but
Note 1: The High-Voltage Programming mode is
2: While
3: When using Low-Voltage ICSP Program-
4: RB3 should not be allowed to float if LVP
6: Disabling LVP will provide maximum
5: LVP mode is enabled by default on all
always available, regardless of the state
of the LVP bit, by applying V
MCLR pin.
(LVP = 1), the RB3 pin can no longer be
used as a general purpose I/O pin.
ming (LVP) and the pull-ups on PORTB
are enabled, bit 3 in the TRISB register
must be cleared to disable the pull-up on
RB3 and ensure the proper operation of
the device.
is enabled. An external pull-down device
should be used to default the device to
normal operating mode. If RB3 floats
high, the PIC16F818/819 device will
enter Programming mode.
devices shipped from Microchip. It can be
disabled by clearing the LVP bit in the
Configuration Word register.
compatibility
devices.
in
2004 Microchip Technology Inc.
Low-Voltage
to
other
ICSP
PIC16CXXX
IHH
to the
mode