HEF4047B
Monostable/astable multivibrator
The HEF4047B is a retriggerable astable multivibrator that can be configured as either a positive-edge or negative-edge triggered monostable multivibrator. The output pulse width is programmed by selection of external components (Rt and Ct). Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Features and benefits
Monostable (one-shot) or astable (free-running) operation
True and complemented buffered outputs
Only one external resistor and capacitor required
Positive- or negative-edge triggering
Output pulse width independent of trigger pulse duration
Retriggerable option for pulse-width expansion
Long pulse width possible using small RC components with external counter provision
Fast recovery time independent of pulse width
Pulse-width accuracy maintained at duty cycles approaching 100%
Free-running or gatable operating modes
50% duty cycle
Oscillator output available
Applications
參數類型
| 型號 | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| HEF4047BT | 3.0?-?15 | CMOS | ± 2.4 | 50 | medium | -40~85 | 69 | 1 | 26 | SO14 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態 | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| HEF4047BT | HEF4047BT,653 (933372910653) |
Active | HEF4047BT |
SO14 (SOT108-1) |
SOT108-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
暫無信息 |
文檔 (11)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| HEF4047B | Monostable/astable multivibrator | Data sheet | 2024-09-03 |
| AN11051 | Pin FMEA HEF4000 family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| mgr506 | Block diagram: HEF4047BP, HEF4047BT | Block diagram | 2009-11-03 |
| SOT108-1 | 3D model for products with SOT108-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SO14_SOT108-1_mk | plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body | Marcom graphics | 2017-01-28 |
| SOT108-1 | plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |