參數(shù)資料
型號: ST72F324J2B6
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, PLASTIC, SDIP-42
文件頁數(shù): 20/156頁
文件大?。?/td> 1027K
代理商: ST72F324J2B6
ST72324J/K
116/156
OPERATING CONDITIONS (Cont’d)
12.3.3 Operating Conditions with Low Voltage Detector (LVD)
Subject to general operating conditions for VDD,fCPU, and TA.
Notes:
1. Data based on characterization results, not tested in production.
2. When VtPOR is faster than 100 s/V, the Reset signal is released after a delay of max. 42s after VDD crosses the
VIT+(LVD) threshold.
3. Applicable only in low voltage devices (planned).
Figure 62. LVD Startup Behaviour
Note: When the LVD is enabled, the MCU reaches its authorized operating voltage from a reset state.
However, in some devices, the reset state is released when VDD is approximately between 0.8V and 1.5V.
As a consequence, depending on the ramp-up speed, the I/Os may toggle when VDD is within this win-
dow.
This may be an issue especially for applications where the MCU drives power components.
Because Flash write access is impossible within this window, the Flash memory contents will not be cor-
rupted.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIT+(LVD)
Reset release threshold
(VDD rise)
VD level = High in option byte
4.0 1)
4.2
4.5
V
VD level = Med. in option byte3)
VD level = Low in option byte3)
3.55 1)
2.95 1)
3.75
3.15
4.0
3.35
VIT-(LVD)
Reset generation threshold
(VDD fall)
VD level = High in option byte
3.8
4.0
4.25 1)
VD level = Med. in option byte3)
VD level = Low in option byte3)
3.35
2.8
3.55
3.0
3.751)
3.15 1)
Vhys(LVD)
LVD voltage threshold hysteresis 1)
VIT+(LVD)-VIT-(LVD)
150
200
250
mV
VtPOR
VDD rise time
1)2)
6
s/V
tg(VDD)
Filtered glitch delay on VDD
1)
Not detected by the LVD
40
ns
5V
1.5V
VIT+
0.8V
LVD RESET
V D
D
Window
t
相關PDF資料
PDF描述
ST72F324K4B6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
ST72F325C4T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP48
ST72325C6T3/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
ST72F340S2T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
ST72F340K2T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
相關代理商/技術參數(shù)
參數(shù)描述
ST72F324J2T6 功能描述:8位微控制器 -MCU Flash 8K SPI/SCI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ST72F324J2T6TR 功能描述:8位微控制器 -MCU 5V RANGE 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ST72F324J2TA 功能描述:8位微控制器 -MCU AUTO 8BIT MICRO RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ST72F324J2TAE 功能描述:8位微控制器 -MCU 5V RANGE 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
ST72F324J2TC/TR 功能描述:8位微控制器 -MCU AUTO 8BIT MICRO RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT