The FM1233A is a supervisor circuit that monitors a microprocessor power supply or other system voltage and issues a reset pulse when a fault condition exists. Several different threshold voltages are offered to accommodate 3.3V and 3.0V systems with different tolerances. FM1233A features a precision temperature-compensated voltage reference and comparator. .
a precision temperature-compensated voltage reference and comparator. When VCC falls to the threshold voltage, a RESET pulse is issued, holding the output in the active state. When power rises above VTH, the reset remains asserted for a minimum period (tRST) to allow the system clock and other circuits to stabilize. The reset output of FM1233A is of open-drain active low type. The FM1233A also can monitor a switch closure on its output, enabling it to recognize an external reset from a pushbutton switch or a µP. In the case of a switch, the closure will be debounced by circuitry internal to th.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | FM1233B |
Fairchild Semiconductor |
3-Pin C Supervisor Circuit | |
2 | FM1233D |
Fairchild Semiconductor |
3-Pin C Supervisor Circuit | |
3 | FM1233E |
Fairchild Semiconductor |
3-Pin C Supervisor Circuit | |
4 | FM1236 |
NXP |
Desktop video & FM radio module system M/ N | |
5 | FM120 |
Rectron |
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER | |
6 | FM120 |
Formosa MS |
Silicon epitaxial planer type | |
7 | FM120-M |
Formosa MS |
Silicon epitaxial planer type | |
8 | FM120-MH |
Formosa MS |
Chip Schottky Barrier Diodes | |
9 | FM120-MS |
Formosa MS |
SMD Schottky Barrier Rectifier | |
10 | FM120-N |
PACELEADER INDUSTRIAL |
Chip Schottky Barrier Rectifier | |
11 | FM120-S |
Formosa MS |
Chip Schottky Barrier Diodes | |
12 | FM1200 |
Rectron |
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER |