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参数资料
型号： STM8L151G4U3
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, QCC28
封装： 4 X 4 MM, ROHS COMPLIANT, WFQFPN-28
文件页数： 82/109页
文件大小： 2050K
代理商： STM8L151G4U3
Electrical parameters
STM8L151xx, STM8L152xx
74/109
Doc ID 15962 Rev 3
HSE crystal/ceramic resonator oscillator
The HSE clock can be supplied with a 1 to 16 MHz crystal/ceramic resonator oscillator. All
the information given in this paragraph is based on characterization results with specified
typical external components. In the application, the resonator and the load capacitors have
to be placed as close as possible to the oscillator pins in order to minimize output distortion
and startup stabilization time. Refer to the crystal resonator manufacturer for more details
(frequency, package, accuracy...).
Figure 13.
HSE oscillator circuit diagram
HSE oscillator critical gm formula
Rm: Notional resistance (see crystal specification), Lm: Notional inductance (see crystal specification),
Cm: Notional capacitance (see crystal specification), Co: Shunt capacitance (see crystal specification),
CL1=CL2=C: Grounded external capacitance
gm >> gmcrit
Table 27.
HSE oscillator characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHSE
High speed external oscillator
frequency
116
MHz
RF
Feedback resistor
200
k
Ω
C(1)
Recommended load capacitance (2)
20
pF
IDD(HSE)
HSE oscillator power consumption
C = 20 pF,
fOSC = 16 MHz
2.5 (startup)
0.7 (stabilized)(3)
mA
C = 10 pF,
fOSC =16 MHz
2.5 (startup)
0.46 (stabilized)(3)
gm
Oscillator transconductance
3.5
mA/V
tSU(HSE)
(4) Startup time
VDD is stabilized
1
ms
1.
C=CL1=CL2 is approximately equivalent to 2 x crystal CLOAD.
2.
The oscillator selection can be optimized in terms of supply current using a high quality resonator with small Rm value.
Refer to crystal manufacturer for more details
3.
Data based on characterization results, not tested in production.
4.
tSU(HSE) is the startup time measured from the moment it is enabled (by software) to a stabilized 16 MHz oscillation. This
value is measured for a standard crystal resonator and it can vary significantly with the crystal manufacturer.
OSC_OUT
OSC_IN
fHSE to core
CL1
CL2
RF
STM8
Resonator
Consumption
control
gm
Rm
Cm
Lm
CO
Resonator
g
mcrit
2
Π
×
f
HSE
×
()2 R
m
×
2Co
C
+
()
2
=
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STM8L151G4U6TR 功能描述:8位微控制器 -MCU 8BIT Ultralow MCU 16KB Flash 2KB RAM 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
STM8L151G4Y3 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
STM8L151G4Y3TR 功能描述:8位微控制器 -MCU Ultra-Lo-pwr 8-bit MCU 16Kb 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
STM8L151G4Y6 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
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