PIC16F1947-I/PT Microchip Technology Inc., PIC16F1947-I/PT Datasheet - Page 372

• Manufacturer Part Number: PIC16F1947-I/PT
• Description: 64 TQFP 10x10x1mm TRAY28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F1947-I/PT

• A/d Inputs: 17-Channel, 10-Bit
• Comparators: 3
• Cpu Speed: 8 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 54
• Interface: CAN/I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 28K Bytes
• Ram Size: 1K Bytes
• Speed: 32 MHz
• Timers: 4-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F/LF1946/47
28.2
The Low-Voltage Programming Entry mode allows the
PIC16F/LF1946/47 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
information.
The LVP bit can only be reprogrammed to ‘0’ by using
the High-Voltage Programming mode.
FIGURE 28-3:
DS41414B-page 372
DD
Note:
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
for as long as Program/Verify mode is to be
The ICD 2 produces a V
than the maximum V
PIC16F/LF1946/47.
*
PICkit™ STYLE CONNECTOR INTERFACE
Section 6.3 “MCLR”
The 6-pin header (0.100" spacing) accepts 0.025" square pins.
IL
.
PP
specification of the
PP
voltage greater
for more
Preliminary
Pin 1 Indicator
1
2
3
4
5
6
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
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
28-2.
PP
V
Common Programming Interfaces
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
 2010 Microchip Technology Inc.
28-3.
ICSPCLK
NC
Target
PC Board
Bottom Side