PIC12F1822-I/MF Microchip Technology, PIC12F1822-I/MF Datasheet - Page 323

• Manufacturer Part Number: PIC12F1822-I/MF
• Description: IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 12Fr

Specifications of PIC12F1822-I/MF

• Controller Family/series: PIC12
• No. Of I/o's: 6
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 32MHz
• No. Of Timers: 3
• Core Size: 8 Bit
• Program Memory Size: 3.5KB
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.0
ICSP™ programming allows customers to manufacture
circuit boards with unprogrammed devices. Programming
can be done after the assembly process allowing the
device to be programmed with the most recent firmware
or a custom firmware. Five pins are needed for ICSP™
programming:
• ICSPCLK
• ICSPDAT
• MCLR/V
• V
• V
In Program/Verify mode the program memory, user IDs
and the Configuration Words are programmed through
serial communications. The ICSPDAT pin is a bidirec-
tional I/O used for transferring the serial data and the
ICSPCLK pin is the clock input. For more information on
ICSP™ refer to the “PIC16F/LF182X/PIC12F/LF1822
Memory Programming Specification” (DS41403).
28.1
The device is placed into High-Voltage Programming
Entry mode by holding the ICSPCLK and ICSPDAT
pins low then raising the voltage on MCLR/V
Some programmers produce V
(9.0V), an external circuit is required to limit the V
voltage. See
FIGURE 28-1:
 2010 Microchip Technology Inc.
Note:
DD
SS
IN-CIRCUIT SERIAL
PROGRAMMING™ (ICSP™)
High-Voltage Programming Entry
Mode
PP
The MPLAB ICD 2 produces a V
greater than the maximum V
of the PIC12F/LF1822/16F/LF1823.
Figure 28-1
To MPLAB
ICSP_CLOCK
RJ11-6PIN
ICSP_DATA
VPP LIMITER EXAMPLE CIRCUIT
V
V
V
for example circuit.
®
NC
PP
DD
SS
ICD 2
1
2
3
4
5
6
PP
greater than V
PIC12F/LF1822/PIC16F/LF1823
PP
specification
PP
PP
270 Ohm
to V
voltage
R1
10k 1%
IHH
Preliminary
2
3
6
7
R2
IHH
PP
LM431BCMX
.
A
A
A
A
V
U1
REF
8
NC
NC
24k 1%
K
R3
1
4
5
To Target Board
6
5
4
3
2
1
RJ11-6PIN
DS41413B-page 323