PIC12LF1840-E/P Microchip Technology, PIC12LF1840-E/P Datasheet - Page 303
![7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano](/photos/16/3/160349/pdip8_sml.jpg)
PIC12LF1840-E/P
Manufacturer Part Number
PIC12LF1840-E/P
Description
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer
Microchip Technology
Series
PIC® XLP™ 12Fr
Datasheet
1.PIC12F1840-EMF.pdf
(382 pages)
Specifications of PIC12LF1840-E/P
Processor Series
PIC12F
Core
PIC
Program Memory Type
Flash
Program Memory Size
7 KB
Data Ram Size
256 B
Interface Type
MI2C, SPI, EUSART
Number Of Timers
3
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Package / Case
PDIP-8
Development Tools By Supplier
MPLAB IDE Software
Minimum Operating Temperature
- 40 C
Core Processor
RISC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
5
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Lead Free Status / Rohs Status
Details
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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/LF1847/PIC12F/LF1840
Memory Programming Specification”, (DS41439).
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:
2011 Microchip Technology Inc.
Note:
DD
SS
IN-CIRCUIT SERIAL
PROGRAMMING™ (ICSP™)
High-Voltage Programming Entry
Mode
PP
The MPLAB ICD 2 produces a V
voltage greater than the maximum V
specification of the PIC12F/LF1840.
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
PP
270 Ohm
to V
R1
10k 1%
IHH
Preliminary
2
3
6
7
PP
PP
R2
IHH
PP
LM431BCMX
.
A
A
A
A
V
U1
REF
8
NC
NC
24k 1%
K
R3
1
4
5
PIC12(L)F1840
To Target Board
6
5
4
3
2
1
RJ11-6PIN
DS41441B-page 303
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