DS1830A
FEATURES
- 5V (DS1830) or 3.3V (DS1830A) power-on reset
- Excellent for systems that need power-on resets in a consistent sequence
- Asserts resets during power transients
- Pushbutton reset input for system override
- Selectable reset timing
- Reduces need for discrete ponents
- Precision temperature-pensated voltage reference
- 8-pin DIP, 8-pin SO, or space saving 8-pin
µSOP
- Operating temperature of -40°C to +85°C
- Open-drain, active-low inputs
DS1830/A DS183
DS1830/A Reset Sequence Pushbutton
PIN ASSIGNMENT
PIN DESCRIPTION
1 PBRST
- Pushbutton Reset Input
2 TD
- Time Delay Select Input
3 TOL 4 GND
- VCC Tolerance Select Input
- Ground
8 VCC 7 RST1
- Power Supply
- Reset 1 Output
6 RST2
- Reset 2 Output
5 RST3
- Reset 3 Output
DESCRIPTION
The DS1830 Reset Sequencer monitors the power supply for an in-tolerance condition and the pushbutton reset input for a manual reset. First a precision temperature-pensated reference and parator circuit monitors the status of the...
