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.
Product number | Rating | Inventory(pcs) | Price | Package | MSL | RoHS | MPQ | Operating Temperature Range (℃) | Order |
CBM810MST3 | Industrial grade | 16000 |
10~99 | $ 0.11
|
SOT23-3 | MSL 3 | RoHS | Tape and Reel, 3000 | -40 to 85 | |
CBM810MSC3 | Industrial grade | 16000 |
10~99 | $ 0.11
|
SC70-3 | MSL 3 | RoHS | Tape and Reel, 3000 | -40 to 85 |
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