PIC24FJ256GB106T-I/PT Microchip Technology, PIC24FJ256GB106T-I/PT Datasheet - Page 295
![IC PIC MCU FLASH 256K 64-TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC24FJ256GB106T-I/PT
Manufacturer Part Number
PIC24FJ256GB106T-I/PT
Description
IC PIC MCU FLASH 256K 64-TQFP
Manufacturer
Microchip Technology
Series
PIC® 24Fr
Datasheets
1.PIC24FJ128GA106-IPT.pdf
(52 pages)
2.PIC24FJ64GB106-IPT.pdf
(16 pages)
3.PIC24FJ64GB106-IPT.pdf
(352 pages)
Specifications of PIC24FJ256GB106T-I/PT
Core Processor
PIC
Core Size
16-Bit
Speed
32MHz
Connectivity
I²C, SPI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
51
Program Memory Size
256KB (85.5K x 24)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TFQFP
For Use With
DM240011 - KIT STARTER MPLAB FOR PIC24F MCUMA240014 - MODULE PLUG-IN PIC24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC24FJ256GB106T-I/PTTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC24FJ256GB106T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC24FJ128GA106-IPT PDF datasheet
- PIC24FJ64GB106-IPT PDF datasheet #2
- PIC24FJ64GB106-IPT PDF datasheet #3
- Current page: 295 of 352
- Download datasheet (3Mb)
26.3.1
The Watchdog Timer has an optional Fixed Window
mode of operation. In this Windowed mode, CLRWDT
instructions can only reset the WDT during the last 1/4
of the programmed WDT period. A CLRWDT instruction
executed before that window causes a WDT Reset,
similar to a WDT time-out.
Windowed WDT mode is enabled by programming the
WINDIS Configuration bit (CW1<6>) to ‘0’.
FIGURE 26-2:
26.4
PIC24FJ256GB110 family devices provide two compli-
mentary methods to protect application code from
overwrites and erasures. These also help to protect the
device from inadvertent configuration changes during
run time.
26.4.1
For all devices in the PIC24FJ256GB110 family, the
on-chip program memory space is treated as a single
block, known as the General Segment (GS). Code pro-
tection for this block is controlled by one Configuration
bit, GCP. This bit inhibits external reads and writes to
the program memory space. It has no direct effect in
normal execution mode.
Write protection is controlled by the GWRP bit in the
Configuration Word. When GWRP is programmed to
‘0’, internal write and erase operations to program
memory are blocked.
2009 Microchip Technology Inc.
Sleep or Idle Mode
New Clock Source
All Device Resets
CLRWDT Instr.
PWRSAV Instr.
Exit Sleep or
Transition to
LPRC Input
Program Verification and
Code Protection
Idle Mode
SWDTEN
FWDTEN
WINDOWED OPERATION
GENERAL SEGMENT PROTECTION
WDT BLOCK DIAGRAM
31 kHz
(5-bit/7-bit)
Prescaler
FWPSA
1 ms/4 ms
LPRC Control
PIC24FJ256GB110 FAMILY
Counter
WDT
26.3.2
The WDT is enabled or disabled by the FWDTEN
Configuration bit. When the FWDTEN Configuration bit
is set, the WDT is always enabled.
The WDT can be optionally controlled in software when
the FWDTEN Configuration bit has been programmed
to ‘0’. The WDT is enabled in software by setting the
SWDTEN control bit (RCON<5>). The SWDTEN
control bit is cleared on any device Reset. The software
WDT option allows the user to enable the WDT for
critical code segments and disable the WDT during
non-critical segments for maximum power savings.
26.4.2
In addition to global General Segment protection, a
separate subrange of the program memory space can
be individually protected against writes and erases.
This area can be used for many purposes where a sep-
arate block of write and erase protected code is
needed, such as bootloader applications. Unlike
common boot block implementations, the specially
protected segment in PIC24FJ256GB110 family
devices can be located by the user anywhere in the
program space, and configured in a wide range of
sizes.
Code segment protection provides an added level of
protection to a designated area of program memory, by
disabling the NVM safety interlock whenever a write or
erase address falls within a specified range. They do
not override General Segment protection controlled by
the GCP or GWRP bits. For example, if GCP and
GWRP are enabled, enabling segmented code protec-
tion for the bottom half of program memory does not
undo General Segment protection for the top half.
1:1 to 1:32.768
WDTPS<3:0>
Postscaler
CONTROL REGISTER
CODE SEGMENT PROTECTION
DS39897C-page 295
WDT Overflow
Wake from Sleep
Reset
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