PIC16LF1938-I/MV Microchip Technology, PIC16LF1938-I/MV Datasheet - Page 362
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC16LF1938-I/MV
Manufacturer Part Number
PIC16LF1938-I/MV
Description
IC MCU 8BIT 28KB FLASH 28UQFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF1938-IMV.pdf
(452 pages)
Specifications of PIC16LF1938-I/MV
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
28KB (16K x 14)
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 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-UFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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PIC16(L)F1938/9
28.2
The Low-Voltage Programming Entry mode allows the
PIC16(L)F193X devices to be programmed using V
only, without high voltage. When the LVP bit of
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
information.
The LVP bit can only be reprogrammed to ‘0’ by using
the High-Voltage Programming mode.
28.3
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 28-3:
DS41574A-page 362
MCLR is brought to V
A 32-bit key sequence is presented on
ICSPDAT, while clocking ICSPCLK.
IL
Low-Voltage Programming Entry
Mode
Common Programming Interfaces
for as long as Program/Verify mode is to be
*
PICkit™ STYLE CONNECTOR INTERFACE
Section 6.3 “MCLR”
The 6-pin header (0.100" spacing) accepts 0.025" square pins.
IL
.
Figure
28-2.
for more
Preliminary
DD
Pin 1 Indicator
1
2
3
4
5
6
FIGURE 28-2:
Another connector often found in use with the PICkit™
programmers is a standard 6-pin header with 0.1 inch
spacing. Refer to
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
Figure
2
3
/MCLR
4
(ground)
Target
5
V
6
SS
ICSPDAT
ICD RJ-11 STYLE
CONNECTOR INTERFACE
2011 Microchip Technology Inc.
28-3.
ICSPCLK
NC
Target
PC Board
Bottom Side
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