PIC24FJ256GB110-I/PF Microchip Technology, PIC24FJ256GB110-I/PF Datasheet - Page 14

• Manufacturer Part Number: PIC24FJ256GB110-I/PF
• Description: IC PIC MCU FLASH 256K 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ256GB110-I/PF

• Program Memory Type: FLASH
• Program Memory Size: 256KB (85.5K x 24)
• Package / Case: 100-TQFP, 100-VQFP
• 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: 83
• 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
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C/SPI/UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 84
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DM240011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARDDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC24FJXXXGA1/GB1
3.3
As shown in Figure 3-4, entering ICSP Program/Verify
mode requires three steps:
1.
2.
3.
The programming voltage applied to MCLR is V
which
PIC24FJXXXGA1/GB1 devices. There is no minimum
time requirement for holding at V
removed, an interval of at least P18 must elapse before
presenting the key sequence on PGDx.
FIGURE 3-4:
DS39907A-page 14
MCLR
V
PGDx
PGCx
DD
MCLR is briefly driven high, then low.
A 32-bit key sequence is clocked into PGDx.
MCLR is then driven high within a specified
period of time and held.
is
Entering ICSP Mode
essentially
P6
P14
ENTERING ICSP™ MODE
P18
V
V
DD
b31
IH
0
b30
in
1
Program/Verify Entry Code = 4D434851h
IH
the
b29
. After V
0
b28
P1A
0
case
P1B
b27
IH
1
IH
of
is
...
,
b3
0
decimal). The device will enter Program/Verify mode only
The key sequence is a specific 32-bit pattern:
‘0100 1101 0100 0011 0100 1000 0101 0001’
(more easily remembered as 4D434851h in hexa-
if the sequence is valid. The Most Significant bit (MSb) of
the most significant nibble must be shifted in first.
Once the key sequence is complete, V
applied to MCLR and held at that level for as long as
Program/Verify mode is to be maintained. An interval of
at least time, P19 and P7, must elapse before present-
ing data on PGDx. Signals appearing on PGCx before
P7 has elapsed will not be interpreted as valid.
On successful entry, the program memory can be
accessed and programmed in serial fashion. While in
ICSP mode, all unused I/Os are placed in the
high-impedance state.
b2
0
b1
0
V
IH
b0
1
P19
P7
© 2007 Microchip Technology Inc.
IH
must be