参数资料
型号: PIC12F683T-E/MF
厂商: Microchip Technology
文件页数: 5/176页
文件大小: 0K
描述: IC MCU FLASH 2KX14 8DFN
Digi-Key 应用说明: AN0005 PWM Example with Microchip's CCP Module
AN0005 Example Code
标准包装: 3,300
系列: PIC® 12F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 5
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 8-VDFN 裸露焊盘
包装: 带卷 (TR)
配用: AC164324-ND - MODULE SKT FOR MPLAB 8DFN/16QFN
XLT08DFN2-ND - SOCKET TRANSITION ICE 14DIP/8DFN
AC162058-ND - HEADER MPLAB ICD2 FOR PIC12F683
I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3
XLT08DFN-ND - SOCKET TRANSITION ICE 8DFN
AC164032-ND - ADAPTER PICSTART PLUS 8DFN/DIP
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
PIC12F683
DS41211D-page 100
2007 Microchip Technology Inc.
12.10 In-Circuit Serial Programming
The PIC12F683 microcontrollers can be serially
programmed while in the end application circuit. This is
simply done with five connections for:
clock
data
power
ground
programming voltage
This allows customers to manufacture boards with
unprogrammed devices and then program the micro-
controller just before shipping the product. This also
allows the most recent firmware or a custom firmware
to be programmed.
The device is placed into a Program/Verify mode by
holding the GP0 and GP1 pins low, while raising the
MCLR
(VPP)
pin
from
VIL
to
VIHH.
See
the
“PIC12F6XX/16F6XX
Memory
Programming
Specification” (DS41204) for more information. GP0
becomes the programming data and GP1 becomes the
programming clock. Both GP0 and GP1 are Schmitt
Trigger inputs in Program/Verify mode.
A typical In-Circuit Serial Programming connection is
shown in Figure 12-11.
FIGURE 12-11:
TYPICAL IN-CIRCUIT
SERIAL PROGRAMMING
CONNECTION
12.11 In-Circuit Debugger
Since in-circuit debugging requires access to three
pins, MPLAB ICD 2 development with a 14-pin device
is not practical. A special 14-pin PIC12F683 ICD device
is used with MPLAB ICD 2 to provide separate clock,
data and MCLR pins and frees all normally available
pins to the user.
A special debugging adapter allows the ICD device to
be used in place of a PIC12F683 device. The
debugging adapter is the only source of the ICD device.
When the ICD pin on the PIC12F683 ICD device is held
low, the In-Circuit Debugger functionality is enabled.
This function allows simple debugging functions when
used with MPLAB ICD 2. When the microcontroller has
this feature enabled, some of the resources are not
available for general use. Table 12-9 shows which
features are consumed by the background debugger.
TABLE 12-9:
DEBUGGER RESOURCES
For more information, see “MPLAB ICD 2 In-Circuit
Debugger User’s Guide” (DS51331), available on
Microchip’s web site (www.microchip.com).
FIGURE 12-12:
14-PIN ICD PINOUT
External
Connector
Signals
To Normal
Connections
To Normal
Connections
PIC12F683
VDD
VSS
MCLR/VPP/GP3
GP1
GP0
+5V
0V
VPP
CLK
Data I/O
*
* Isolation devices (as required)
Resource
Description
Stack
1 level
Program Memory
Address 0h must be NOP
700h-7FFh
14-Pin PDIP
PIC
1
2F68
3-IC
D
In-Circuit Debug Device
NC
ICDMCLR
VDD
GP5
GP4
GP3
ICD
ICDCLK
ICDDATA
GND
GP0
GP1
GP2
NC
1
2
3
4
5
6
7
14
13
12
9
11
10
8
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