参数资料
型号: ST72F321J7T3
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: 77/176页
文件大小: 1112K
代理商: ST72F321J7T3
ST72321J
168/176
14 ST72321J DEVICE CONFIGURATION AND ORDERING INFORMATION
Each device is available for production in user pro-
grammable versions (FLASH) as well as in factory
coded versions (ROM). FLASH devices are
shipped to customers with a default content (FFh),
while ROM factory coded parts contain the code
supplied by the customer. This implies that FLASH
devices have to be configured by the customer us-
ing the Option Bytes while the ROM devices are
factory-configured.
14.1 FLASH OPTION BYTES
The option bytes allows the hardware configura-
tion of the microcontroller to be selected. They
have no address in the memory map and can be
accessed only in programming mode (for example
using a standard ST7 programming tool). The de-
fault content of the FLASH is fixed to FFh. To pro-
gram directly the FLASH devices using ICP,
FLASH devices are shipped to customers with the
internal RC clock source. In masked ROM devic-
es, the option bytes are fixed in hardware by the
ROM code (see option list).
OPT15= PKG32P
32 Pin package selection
This option bit selects the 32 pin package.
Non-bonded pins in small packages are pulled-up
and then after RESET the floating configure is sta-
ble. Warning, when not bonded, this pin must keep
the input floating configuration to avoid added cur-
rent consumption and to be compatible with sub-
set devices.
OPT14 = RSTC
RESET clock cycle selection
This option bit selects the number of CPU cycles
applied during the RESET phase and when exiting
HALT mode. For resonator oscillators, it is advised
to select 4096 due to the long crystal stabilization
time.
0: Reset phase with 4096 CPU cycles
1: Reset phase with 256 CPU cycles
Note: when the CSS is enabled, the device starts
to count immediately thanks to the backup oscilla-
tor.
OPT13:12 = OSCTYPE[1:0]
Oscillator Type
These option bits select the ST7 main clock
source type.
OPT11:9 = OSCRANGE[2:0]
Oscillator range
When the resonator oscillator type is selected,
these option bits select the resonator oscillator
current source corresponding to the frequency
range of the used resonator. Otherwise, these bits
are used to select the normal operating frequency
range (see CSS option description).
STATIC OPTIO N BYTE 1
15
8
STATIC OPTION BYTE 0
70
PKG32P
RSTC
OSCTYPE
OSCRANGE
PLLOFF
WDG
CSS
VD
FMP_R
10
2
10
HALT
SW
10
Default
1
0
1
Version
Selected Package
PKG
J
TQFP 44 / SDIP42
1
K
TQFP 32 / SDIP32
0
Clock Source
OSCTYPE
10
Resonator Oscillator
0
External RC Oscillator
0
1
Internal RC Oscillator
1
0
External Source
1
Typ. Freq. Range
OSCRANGE
210
LP
1~2MHz
0
MP
2~4MHz
0
1
MS
4~8MHz
0
1
0
HS
8~16MHz
0
1
相关PDF资料
PDF描述
ST72F321J7T1 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
ST72F321J9T5 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
ST72F324BJ6B6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP42
ST72F324BK6T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
ST72F324BK4T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
相关代理商/技术参数
参数描述
ST72F321J7T6 功能描述:8位微控制器 -MCU Flash 48K 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
ST72F321J7T6TR 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
ST72F321J7TA 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
ST72F321J7TAE 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
ST72F321J7TCE 制造商:STMicroelectronics 功能描述: