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参数资料
型号： PIC24FJ64GA002T-I/SS
厂商： Microchip Technology
文件页数： 21/52页
文件大小： 0K
描述： IC PIC MCU FLASH 64K 28SSOP
产品培训模块： Asynchronous Stimulus
标准包装： 2,100
系列： PIC® 24F
核心处理器： PIC
芯体尺寸： 16-位
速度： 32MHz
连通性： I²C，PMP，SPI，UART/USART
外围设备： 欠压检测/复位，LVD，POR，PWM，WDT
输入/输出数： 21
程序存储器容量： 64KB（22K x 24）
程序存储器类型： 闪存
RAM 容量： 8K x 8
电压 - 电源 (Vcc/Vdd)： 2 V ~ 3.6 V
数据转换器： A/D 10x10b
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 28-SSOP（0.209"，5.30mm 宽）
包装： 带卷 (TR)
配用： DM240011-ND - KIT STARTER MPLAB FOR PIC24F MCU
AC162088-ND - HEADER MPLAB ICD2 24FJ64GA004 28
AC164338-ND - MOD SKT PIC24F/DSPIC33F 28SOIC
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
其它名称： PIC24FJ64GA002T-I/SSTR
PIC24FJXXXGA0XX
DS39768D-page 28
2008 Microchip Technology Inc.
FIGURE 4-2:
CONFIRMING PRESENCE
OF PROGRAMMING
EXECUTIVE
4.3
Entering Enhanced ICSP Mode
As shown in Figure 4-3, entering Enhanced ICSP
Program/Verify mode requires three steps:
1.
The MCLR pin 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 0000’
(more easily remembered as 4D434850h in hexa-
decimal format). The device will enter Program/Verify
mode only if the key 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 presenting
data on PGDx. Signals appearing on PGDx 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
the Program/Verify mode, all unused I/Os are placed in
the high-impedance state.
FIGURE 4-3:
ENTERING ENHANCED ICSP MODE
Is
Start
Enter ICSP Mode
Application ID
BBh?
Resident in Memory
Yes
No
Prog. Executive is
Application ID
Read the
be Programmed
Prog. Executive must
from Address
807F0h
Finish
MCLR
PGDx
PGCx
VDD
P6
P14
b31
b30
b29
b28
b27
b2
b1
b0
b3
...
Program/Verify Entry Code = 4D434850h
P1A
P1B
P18
P19
01
00
1
0
P7
VIH
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PIC24FJ64GA004-E/ML 功能描述:16位微控制器 - MCU 16b Family 16 MIPS 64KB Flash 8192b RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
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 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
PIC24FJ64GA004-I/ML 功能描述:16位微控制器 - MCU 64KB FL 8192b RAM 16MIPS 35I/O 16b Fam RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
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