CD4047B
- Lower power consumption: special CMOS oscillator configuration
- Monostable (one-shot) or astable (free-running) operation
- True and complemented buffered outputs
- Only one external R anc C required
- Buffered inputs
- 100% tested for quiescent current at 20 V
- Standardized, symmetrical output characteristics
- 5-V, 10-V, and 15-V parametric ratings
- Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
- Monostable Multivibrator Features:
- Positive-or negative-edge trigger
- Output pulse width independent of trigger pulse duration
- Retriggerable option for pulse width expansion
- Internal power-on reset circuit
- Long pulse widths possible using small RC components by means of external counter provision
- Fast recovery time essentially independent of pulse width
- Pulse-width accuracy maintained at duty cycles approaching 100%
- Astable Multivibrator Features:
- Free-running or gatable operating modes
- 50% duty cycle
- Oscillator output available
- Good astable frequency stability:
Frequency deviation:
= ±2% + 0.03%/°C @ 100 kHz
= ±0.5% +0.015%/°C @ 10 kHz (circuits "trimmed" to frequency VDD = 10 V ± 10%)
- Applications:
Digital equipment where low-power dissipation and/or high noise immunity are primary design requirements:- Envelope detection
- Frequency multiplication
- Frequency division
- Frequency discriminators
- Timing circuits
- Time-delay applications
Data sheet acquired from Harris Semiconductor
CD4047B consists of a gatable astable multivibrator with logic techniques incorporated to permit positive or negative edge-triggered monostable multivibrator action with retriggering and external counting options.
Inputs include +TRIGGER, -TRIGGER, ASTABLE, ASTABLE\, RETRIGGER, and EXTERNAL RESET. Buffered outputs are Q\, Q and OSCILLATOR. In all modes of operation, and external capacitor must be connected between C-Timing and RC-Common terminal, and an external resistor must be connected between the R-Timing and RC-Common terminals.
Astable operation is enabled by a high level on the STABLE input or a low level on the ASTABLE\ input, or both. The period of the square wave at the Q and Q\ Outputs in this mode off operation is a function of the external components employed. "True" input pulses on the ASTABLE input or "Complement" pulses on the ASTABLE\ input allow the circuit to be used as a gatable multivibrator. The OSCILLATOR output period will be half of the Q terminal output in the astable mode. However, a 50% duty cycle is not guaranteed at this output.
The CD4047B triggers in the monostable mode when a positive-going edge occurs on the +TRIGGER-input while the -TRIGGER is held low. INput pulses may be of any duration relative to the output pulse.
If retrigger capability is desired, the RETRIGGER input is pulsed. The retriggerable mode of operation is limited to positive-going edge. The CD4047B will retrigger as long as the RETRIGGER-input is high, with or without transitions (See Fig. 34).
An external countdown option can be implemented by coupling "Q" to an external "N" counter and resetting the counter with the trigger pulse. The counter output pulse is fed back to the ASTABLE\ input and has a duration equal to N times the period of the multivibrator.
A high level on the EXTERNAL RESET input assures no output pulse during an "ON" power condition. This input can also be activated to terminate the output pulse at any tine. For monostable operation, whenever VDD is applied, and internal power-on reset circuit will clock the Q output low within one output period (tM).
The CD4047B-Series types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).
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技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | CD4047B TYPES データシート (Rev. C) | 2003年 8月 21日 | |||
| アプリケーション・ノート | Designing With the SN74LVC1G123 Monostable Multivibrator (Rev. A) | PDF | HTML | 2020年 3月 13日 | |||
| セレクション・ガイド | Logic Guide (Rev. AB) | 2017年 6月 12日 | ||||
| アプリケーション・ノート | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 2015年 12月 2日 | ||||
| セレクション・ガイド | ロジック・ガイド (Rev. AA 翻訳版) | 最新英語版 (Rev.AB) | 2014年 11月 6日 | |||
| ユーザー・ガイド | LOGIC Pocket Data Book (Rev. B) | 2007年 1月 16日 | ||||
| アプリケーション・ノート | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 2004年 7月 8日 | ||||
| ユーザー・ガイド | Signal Switch Data Book (Rev. A) | 2003年 11月 14日 | ||||
| アプリケーション・ノート | Understanding Buffered and Unbuffered CD4xxxB Series Device Characteristics | 2001年 12月 3日 |
設計および開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
14-24-LOGIC-EVM — 14 ピンから 24 ピンの D、DB、DGV、DW、DYY、NS、PW の各パッケージに封止した各種ロジック製品向けの汎用評価基板
14-24-logic-EVM 評価基板は、14 ピンから 24 ピンの D、DW、DB、NS、PW、DYY、DGV の各パッケージに封止した各種ロジック デバイスをサポートする設計を採用しています。
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| PDIP (N) | 14 | Ultra Librarian |
| SOIC (D) | 14 | Ultra Librarian |
| SOP (NS) | 14 | Ultra Librarian |
| TSSOP (PW) | 14 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点