圖片僅供參考
| FLYiNG 零件編號 | ICUSA555GS08RUTC |
| FLYiNG 庫存現貨 | 15 |
| 製造商 | UTC |
| 製造商零件編號 | USA555G-S08-R |
| 說明 | LINEAR IC USA555G-S08-R SOP-8 |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| 標準包裝數量 | 2.5K/REEL |
USA555 LINEAR INTEGRATED CIRCUIT
PRECISION TIMERS
DESCRIPTION
The UTC USA555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network.
In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.
The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.
The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200mA.
Operation is specified for supplies of 5V~15V.
USA555 線性集成電路
精密計時器
描述
UTC USA555 單片計時電路是一種高度穩定的控制器，能夠產生精確的時間延遲或振盪。在延時或單穩態操作模式下，定時間隔由單個外部電阻和電容網絡控制。
在非穩態工作模式下，頻率和占空比可以通過兩個外部電阻器和一個外部電容器獨立控制。
閾值和触發電平通常分別為 VCC 的三分之二和三分之一。這些電平可以通過使用控制電壓端子來改變。當觸發輸入低於觸發電平時，觸發器被置位，輸出變高。如果觸發輸入高於觸發電平且閾值輸入高於閾值電平，則觸發器復位且輸出為低電平。復位 (RESET) 輸入可以覆蓋所有其他輸入，並可用於啟動新的計時周期。當 RESET 變低時，觸發器復位，輸出變低。當輸出低時，在放電 (DISCH) 和地之間提供低阻抗路徑。
該電路可以在下降波形上觸發和復位，輸出結構可以提供或吸收高達 200mA 的電流。
指定操作適用於 5V~15V 的電源。
特徵
PRECISION TIMERS
DESCRIPTION
The UTC USA555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network.
In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.
The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.
The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200mA.
Operation is specified for supplies of 5V~15V.
FEATURES
- Astable or monostable operation
- Low turn off time
- Operates in both astable and monostable modes
- Timing from microseconds to hours
- Adjustable duty cycle
- TTL-compatible output can sink or source up to 200mA
USA555 線性集成電路
精密計時器
描述
UTC USA555 單片計時電路是一種高度穩定的控制器，能夠產生精確的時間延遲或振盪。在延時或單穩態操作模式下，定時間隔由單個外部電阻和電容網絡控制。
在非穩態工作模式下，頻率和占空比可以通過兩個外部電阻器和一個外部電容器獨立控制。
閾值和触發電平通常分別為 VCC 的三分之二和三分之一。這些電平可以通過使用控制電壓端子來改變。當觸發輸入低於觸發電平時，觸發器被置位，輸出變高。如果觸發輸入高於觸發電平且閾值輸入高於閾值電平，則觸發器復位且輸出為低電平。復位 (RESET) 輸入可以覆蓋所有其他輸入，並可用於啟動新的計時周期。當 RESET 變低時，觸發器復位，輸出變低。當輸出低時，在放電 (DISCH) 和地之間提供低阻抗路徑。
該電路可以在下降波形上觸發和復位，輸出結構可以提供或吸收高達 200mA 的電流。
指定操作適用於 5V~15V 的電源。
特徵
- 非穩態或單穩態運行
- 低關閉時間
- 在非穩態和單穩態模式下運行
- 計時從微秒到小時
- 可調佔空比
- TTL 兼容輸出可以吸收或提供高達 200mA 的電流
