The CBM803X/CBMM809X/CBM810X supervisory circuits monitor the power supply voltage in microprocessor systems. They provide a reset output during power-up, power-down, and brownout conditions. On power-up, an internal timer holds reset asserted for 240 ms. This holds the microprocessor in a reset state until conditions have stabilized. The reset output remains operational with VCC as low as 1 V. The CBM803X and CBM809X provide an active low reset
signal ( RESET ), whereas the CBM810X provides an active high signal (RESET) output. The CBM809X and CBM810X have push-pull outputs, whereas the CBM803X has an open-drain output, which requires an external pull-up resistor. Seven reset threshold voltage options are available, suitable for monitoring a variety of supply voltages (see Table 3). The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC. The CBM803X/CBM809X/CBM810X consume only 17 μA, making them suitable for low power, portable equipment. The CBM803X is available in a 3-lead SC70; the CBM809X/CBM810X are available in 3-lead SOT-23 and 3-lead SC70 packages.
Recision supply voltage monitor
2.32 V(CBM803Z/CBM809Z/CBM810Z)
2.63 V(CBM803R/CBM809R/CBM810R)
2.93 V(CBM803S/CBM809S/CBM810S)
3.08 V(CBM803T/CBM809T/CBM810T)
4.00 V(CBM803J/CBM809J/CBM810J)
4.38 V(CBM803M/CBM809M/CBM810M)
4.63 V(CBM803L/CBM809L/CBM810L)
17 µA quiescent current
Reset assertion down to 1 V VCC
140 ms minimum power-on reset
Open-drain RESET output (CBM803X)
Push-pull RESET output (CBM809X)
Push-pull RESET output (CBM810X) * X=L,M,J,T,S,R,Z
Microprocessor systems
Computers
Controllers
Intelligent instruments
Type | Title | File Size | Date | Download |
Selection Guide | Corebai Selection Guide Rev.En2023.pdf | 7.73M | 2024-01-24 | Download |
计算工具
ANALOG-ENGINEER-CALC — 模拟工程师计算器
模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益 到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。
计算工具
ANALOG-ENGINEER-CALC — 模拟工程师计算器
模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益 到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。
Product number | Rating | Inventory(pcs) | Price | Package | MSL | RoHS | MPQ | Operating Temperature Range (℃) | Order |
CBM809MST3 | Industrial grade | 16000 |
10~99 | ¥ 0.11
|
SOT23-3 | MSL 3 | RoHS | Tape and Reel, 3000 | -40 to 85 | |
CBM809MSC3 | Industrial grade | 16000 |
10~99 | ¥ 0.11
|
SC70-3 | MSL 3 | RoHS | Tape and Reel, 3000 | -40 to 85 |
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