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参数资料
型号： ST72F321J9T5
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封装： 10 X 10 MM, PLASTIC, TQFP-44
文件页数： 68/176页
文件大小： 1112K
代理商： ST72F321J9T5
ST72321J
16/176
FLASH PROGRAM MEMORY (Cont’d)
4.5 ICP (In-Circuit Programming)
To perform ICP the microcontroller must be
switched to ICC (In-Circuit Communication) mode
by an external controller or programming tool.
Depending on the ICP code downloaded in RAM,
Flash memory programming can be fully custom-
ized (number of bytes to program, program loca-
tions, or selection serial communication interface
for downloading).
When using an STMicroelectronics or third-party
programming tool that supports ICP and the spe-
cific microcontroller device, the user needs only to
implement the ICP hardware interface on the ap-
plication board (see Figure 6). For more details on
the pin locations, refer to the device pinout de-
scription.
ICP needs seven pins to be connected to the pro-
gramming tool. These pins are:
– RESET: device reset
–VSS: device power supply ground
– ICCCLK: ICC output serial clock pin
– ICCDATA: ICC input serial data pin
– ICCSEL/VPP: programming voltage
– OSC1: main clock input for external source
–VDD: application board power supply
CAUTIONS:
1. If RESET, ICCCLK or ICCDATA pins are used
for other purposes in the application, a serial resis-
tor has to be implemented to avoid a conflict in
case one of the other devices forces the signal lev-
el. If these pins are used as outputs in the applica-
tion, the serial resistors are not necessary.
2. As soon as the external controller is plugged to
the board, even if an ICC session is not in
progress, the ICCCLK and ICCDATA pins are not
available for the application.
Note: To develop a custom programming tool, re-
fer to the ST7 ICC Reference Manual which gives
full details on the ICC protocol hardware and soft-
ware.
Figure 5. Typical ICP Interface
ICP PROGRAMMING TOOL CONNECTOR
10k
CL2
CL1
1
ICCDATA
ICCCLK
RESET
VSS
VDD
ICCSEL/VPP
OSC1
OSC2
ST7
HE10 CONNECTOR TYPE
APPLICATI ON
>2.7k
T
O
THE
AP
P
LICA
TIO
N
BOARD
APPLICATION
POWER SUPPLY
VDD CONNECTION LETS
PROGRAMMI NG TOOL CHECK THAT
MCU HAS POWER
OPTIONAL (SEE CAUTION 1)
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相关代理商/技术参数
参数描述
ST72F321J9T6 功能描述:8位微控制器 -MCU Flash 60K SPI/SCI/I2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F321J9TA 功能描述:8位微控制器 -MCU AUTO 8BIT MICRO RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F321J9TAE 功能描述:8位微控制器 -MCU 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F321J9TAS 制造商:STMicroelectronics 功能描述:
ST72F321J9TC 功能描述:8位微控制器 -MCU Flask 60K SPI/SCI/I2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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