PIC16F87-E/SO Microchip Technology, PIC16F87-E/SO Datasheet - Page 150
![IC MCU FLASH 4KX14 EEPROM 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16F87-E/SO
Manufacturer Part Number
PIC16F87-E/SO
Description
IC MCU FLASH 4KX14 EEPROM 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(6 pages)
4.PIC16F87-IP.pdf
(228 pages)
5.PIC16F87-IP.pdf
(8 pages)
6.PIC16F87-IP.pdf
(4 pages)
7.PIC16F87-IP.pdf
(8 pages)
8.PIC16F87-IP.pdf
(24 pages)
Specifications of PIC16F87-E/SO
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
16
Program Memory Size
7KB (4K 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
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F87-IP PDF datasheet #4
- PIC16F87-IP PDF datasheet #5
- PIC16F87-IP PDF datasheet #6
- PIC16F87-IP PDF datasheet #7
- PIC16F87-IP PDF datasheet #8
- Current page: 150 of 228
- Download datasheet (5Mb)
PIC16F87/88
15.18 Low-Voltage ICSP Programming
The LVP bit of the Configuration Word enables Low-
Voltage ICSP Programming. This mode allows the
microcontroller to be programmed via ICSP using a
V
means that V
but 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 register.
1.
2.
3.
4.
5.
DS30487C-page 148
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
,
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 PIC16F87/88 devices will enter
Programming mode.
devices shipped from Microchip. It can be
disabled by clearing the LVP bit in the
CONFIG1 register.
compatibility
devices.
in
2005 Microchip Technology Inc.
Low-Voltage
to
other
ICSP
PIC16CXXX
IHH
to the
mode
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