PIC16LF1939-I/P Microchip Technology, PIC16LF1939-I/P Datasheet - Page 362
PIC16LF1939-I/P
Manufacturer Part Number
PIC16LF1939-I/P
Description
IC MCU 8BIT FLASH 40-DIP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF1939-I/P
Core Size
8-Bit
Program Memory Size
28KB (16K x 14)
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16LF
Eeprom Memory Size
256Byte
Ram Memory Size
1024Byte
Cpu Speed
32MHz
No. Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC16F193X/LF193X
27.2
The Low-Voltage Programming Entry mode allows the
PIC16F193X/LF193X devices to be programmed using
V
Configuration Word 2 is set to ‘1’, the low-voltage ICSP
programming entry is enabled. To disable the
Low-Voltage ICSP mode, the LVP bit must be
programmed to ‘0’.
Entry into the Low-Voltage Programming Entry mode
requires the following steps:
1.
2.
Once the key sequence is complete, MCLR must be
held at V
maintained.
If low-voltage programming is enabled (LVP = 1), the
MCLR Reset function is automatically enabled and
cannot be disabled. See Section 6.3 “MCLR” for more
information.
The LVP bit can only be reprogrammed to ‘0’ by using
the High-Voltage Programming mode.
27.3
Connection to a target device is typically done through
an ICSP™ header. A commonly found connector on
development tools is the RJ-11 in the 6P6C (6 pin, 6
connector) configuration. See Figure 27-2.
FIGURE 27-3:
DS41364D-page 362
DD
MCLR is brought to V
A 32-bit key sequence is presented on
ICSPDAT, while clocking ICSPCLK.
only, without high voltage. When the LVP bit of
IL
Low-Voltage Programming Entry
Mode
Common Programming Interfaces
for as long as Program/Verify mode is to be
*
PICKIT™ STYLE CONNECTOR INTERFACE
The 6-pin header (0.100" spacing) accepts 0.025" square pins.
IL
.
Preliminary
Pin 1 Indicator
1
2
3
4
5
6
FIGURE 27-2:
Another connector often found in use with the PICkit™
programmers is a standard 6-pin header with 0.1 inch
spacing. Refer to Figure 27-3.
V
PP
V
DD
/MCLR
Pin Description*
1 = V
2 = V
3 = V
4 = ICSPDAT
5 = ICSPCLK
6 = No Connect
Pin Description*
1 = V
2 = V
3 = V
4 = ICSPDAT
5 = ICSPCLK
6 = No Connect
PP
DD
SS
/MCLR
1
Target
(ground)
PP
DD
SS
2
3
/MCLR
4
(ground)
Target
5
V
6
SS
ICSPDAT
ICD RJ-11 STYLE
CONNECTOR INTERFACE
2009 Microchip Technology Inc.
ICSPCLK
NC
Target
PC Board
Bottom Side
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