The 555 timer is configured for

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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The image depicts a circuit diagram featuring a 555 timer configured in a particular way. Key components and their connections are outlined below:

**Circuit Components:**

- **Resistors:**
  - \( R_1 = 1 \, \text{k}\Omega \)
  - \( R_2 = 3.3 \, \text{k}\Omega \)

- **Capacitors:**
  - \( C_{\text{ext}} = 0.047 \, \mu\text{F} \)
  - \( C_1 = 0.01 \, \mu\text{F} \)

- **555 Timer Device:**
  - Designated as U2 (LM555CM)
  - Pin Configuration:
    - Pin 8: \( V_{\text{CC}} = 5.5 \, \text{V} \)
    - Pin 3: OUT
    - Pin 4: RST
    - Pin 7: DIS
    - Pin 6: THR
    - Pin 5: CON
    - Pin 2: TRIG
    - Pin 1: GND

**Diagram Description:**

The circuit assembly displays the 555 timer in a configuration suggesting one of its operational modes, which needs to be identified.

**Answer Options:**

- a. Astable operation
- b. A phase-shift oscillator
- c. A Wien-Bridge oscillator
- d. Monostable operation

**Figure Reference:**

- Figure 4 is labeled at the bottom of the diagram.

This configuration is used to explore different operation modes of the 555 timer, likely meant for educational purposes to test comprehension of its applications.
Transcribed Image Text:The image depicts a circuit diagram featuring a 555 timer configured in a particular way. Key components and their connections are outlined below: **Circuit Components:** - **Resistors:** - \( R_1 = 1 \, \text{k}\Omega \) - \( R_2 = 3.3 \, \text{k}\Omega \) - **Capacitors:** - \( C_{\text{ext}} = 0.047 \, \mu\text{F} \) - \( C_1 = 0.01 \, \mu\text{F} \) - **555 Timer Device:** - Designated as U2 (LM555CM) - Pin Configuration: - Pin 8: \( V_{\text{CC}} = 5.5 \, \text{V} \) - Pin 3: OUT - Pin 4: RST - Pin 7: DIS - Pin 6: THR - Pin 5: CON - Pin 2: TRIG - Pin 1: GND **Diagram Description:** The circuit assembly displays the 555 timer in a configuration suggesting one of its operational modes, which needs to be identified. **Answer Options:** - a. Astable operation - b. A phase-shift oscillator - c. A Wien-Bridge oscillator - d. Monostable operation **Figure Reference:** - Figure 4 is labeled at the bottom of the diagram. This configuration is used to explore different operation modes of the 555 timer, likely meant for educational purposes to test comprehension of its applications.
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