Imagens apenas para referência
DS1832S
+Lista de MateriaisIC SUPERVISOR 1 CHANNEL 8SOIC
-
FabricanteAnalog Devices Inc./Maxim Integrated
-
Peça do Fabricante #DS1832S
-
Pacote SOIC-8
-
Em Estoque5966
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Series | MicroMonitor™ |
| Part Status | Obsolete |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 2.55V, 2.88V |
| Output | Push-Pull, Push-Pull |
| Reset | Active High/Active Low |
| Reset Timeout | 250ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features of the DS1832S include:
1. Power-On Reset: Ensures that the microprocessor resets properly during power-up, providing a stable initialization state.
2. Watchdog Timer: Monitors microprocessor activity, triggering a reset if the processor fails to operate correctly within a predetermined time. This prevents system lock-ups or crashes.
3. Manual Reset Input: Allows external control over the reset process, enabling manual intervention when necessary.
4. Voltage Monitoring: It typically monitors the supply voltage to detect undervoltage conditions that could undermine system stability.
5. Compact Package: The SSOP (Shrink Small Outline Package) design makes it suitable for space-constrained applications.
Overall, the DS1832S enhances the robustness and reliability of microprocessor systems by providing essential monitoring and control features.
Equivalent
1. MAX1232 by Maxim Integrated – Offers similar features like voltage monitoring and watchdog timer.
2. MCP1316 by Microchip – Includes voltage monitoring and reset functions.
3. LM1232 by Texas Instruments – Provides comparable features with reset and watchdog timer functions.
These alternatives may vary slightly in specifications, so reviewing datasheets is recommended for compatibility.
Features
1. Voltage Monitoring and Reset: Monitors the power supply voltage and generates a reset signal when the voltage falls below a preset threshold, ensuring proper microprocessor reset during power-up, power-down, and brownout conditions.
2. Watchdog Timer: Helps prevent system lockup by providing a timeout period that resets the microprocessor if not regularly serviced, ensuring ongoing proper operation.
3. Manual Reset Capability: Offers a manual reset input pin, allowing external push-button reset functionality.
4. Low-Power Consumption: Designed to consume minimal power, making it suitable for battery-operated applications.
5. Precision Voltage Reference: Provides a highly accurate voltage reference to ensure precise voltage monitoring.
6. Compact Packaging: Available in a small form-factor package, ideal for space-constrained applications.
These features make the DS1832S suitable for applications requiring reliable power monitoring and resetting capabilities, such as embedded systems and portable electronics.
Pinout
1. Pin Count: The DS1832S is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
2. Pin Functions:
- VCC: Supply voltage input.
- GND: Ground reference.
- RST (Reset Output): Active-low reset output, which drives low whenever VCC is below the threshold, or when the manual reset is activated.
- RST (Active-high Reset Output): Complementary active-high reset output.
- PBRST (Pushbutton Reset Input): Input for manual reset, which can be triggered by an external pushbutton.
- TOL (Tolerance Select): Selects the voltage threshold level for triggering a reset.
- Watchdog Input: Monitors the activity of microcontroller output to prevent system lockup, requiring regular toggling.
- NC (No Connection): Not internally connected; often left unconnected.
The DS1832S provides essential functions such as power-fail monitoring, automatic reset generation, and a watchdog timer for ensuring the reliable operation of microcontroller systems.