參數(shù)資料
型號： PIC24FJ64GA002T-I/ML
廠商： Microchip Technology
文件頁數(shù)： 7/52頁
文件大小： 0K
描述： IC PIC MCU FLASH 64KB 28QFN
產(chǎn)品培訓(xùn)模塊： Graphics LCD System and PIC24 Interface
Asynchronous Stimulus
標(biāo)準(zhǔn)包裝： 1,600
系列： PIC® 24F
核心處理器： PIC
芯體尺寸： 16-位
速度： 32MHz
連通性： I²C，PMP，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復(fù)位，LVD，POR，PWM，WDT
輸入/輸出數(shù)： 21
程序存儲器容量： 64KB（22K x 24）
程序存儲器類型： 閃存
RAM 容量： 8K x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 10x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-VQFN 裸露焊盤
包裝： 帶卷 (TR)
配用： DM240011-ND - KIT STARTER MPLAB FOR PIC24F MCU
AC162088-ND - HEADER MPLAB ICD2 24FJ64GA004 28
AC164336-ND - MODULE SOCKET FOR PM3 28/44QFN
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
其它名稱： PIC24FJ64GA002T-I/MLTR
2008 Microchip Technology Inc.
DS39768D-page 15
PIC24FJXXXGA0XX
3.3
Entering ICSP Mode
As shown in Figure 3-4, entering ICSP Program/Verify
mode requires three steps:
1.
MCLR is briefly driven high, then low.
2.
A 32-bit key sequence is clocked into PGDx.
3.
MCLR is then driven high within a specified
period of time and held.
The programming voltage applied to MCLR is VIH,
which
is
essentially
VDD
in
the
case
of
PIC24FJXXXGA0XX devices. There is no minimum
time requirement for holding at VIH. After VIH is
removed, an interval of at least P18 must elapse before
presenting the key sequence on PGDx.
The key sequence is a specific 32-bit pattern:
‘0100 1101 0100 0011 0100 1000 0101 0001’
(more easily remembered as 4D434851h in hexa-
decimal). The device will enter Program/Verify mode only
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, VIH must be
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.
FIGURE 3-4:
ENTERING ICSP MODE
MCLR
PGDx
PGCx
VDD
P6
P14
b31
b30
b29
b28
b27
b2
b1
b0
b3
...
Program/Verify Entry Code = 4D434851h
P1A
P1B
P18
P19
010
0
P7
VIH
1
0
1
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PIC24FJ64GA004-E/PT 功能描述:16位微控制器 - MCU 16B 64KB Flash I/O 16 MIPS nanoWatt RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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