HEF4047BF Philips Semiconductors, HEF4047BF Datasheet
HEF4047BF
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HEF4047BF Summary of contents
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DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4047B MSI Monostable/astable multivibrator Product specification File under Integrated Circuits, IC04 INTEGRATED ...
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... Philips Semiconductors Monostable/astable multivibrator DESCRIPTION The HEF4047B 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 MR (Master Reset). Buffered outputs are O, O and OSCILLATOR OUTPUT. In ...
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... Philips Semiconductors Monostable/astable multivibrator Astable operation is enabled by a HIGH level on the ASTABLE input. The period of the square wave at O and O outputs is a function of the external components employed. ‘True’ input pulses on the ASTABLE or ‘complement’ pulses on the ASTABLE input, allow the circuit to be used as a gatable multivibrator ...
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Acrobat reader. white to force landscape pages to be ... (1) Special input protection that allows operating input voltages outside the supply voltage lines. ...
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... Philips Semiconductors Monostable/astable multivibrator FUNCTIONAL CONNECTIONS FUNCTION astable multivibrator free running true gating complement gating monostable multivibrator pos. edge-triggering neg. edge-triggering retriggerable (1) external count down Notes 1. Input pulse to RESET of external counting chip; external counting chip output to pin all cases, external resistor between pins 2 and 3, external capacitor between pins 1 and 3. ...
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... Philips Semiconductors Monostable/astable multivibrator AC CHARACTERISTICS pF; input transition times SS amb L Propagation delays ASTABLE, ASTABLE OSC. OUTPUT HIGH to LOW LOW to HIGH ASTABLE, ASTABLE O, O HIGH to LOW LOW to HIGH / TRIGGER O, O HIGH to LOW LOW to HIGH TRIGGER, RETRIGGER HIGH to LOW TRIGGER, RETRIGGER ...
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... Philips Semiconductors Monostable/astable multivibrator Minimum MR pulse width; HIGH Minimum input pulse width; any input exept MR APPLICATION INFORMATION General features: Monostable (one-shot) or astable (free-running) operation True and complemented buffered outputs Only one external R and C required Monostable multivibrator features: Positive- or negative-edge triggering Output pulse width independent of trigger pulse duration ...
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... Philips Semiconductors Monostable/astable multivibrator 1. Astable mode design information a. Unit-to-unit transfer-voltage variations The following analysis presents worst-case variations from unit-to-unit as a function of transfer-voltage (V running (astable) operation – --------------------------- - – – ------------------------------ - ...
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... Philips Semiconductors Monostable/astable multivibrator b. Variations due to changes addition to variations from unit-to-unit, the astable period may vary as a function of frequency with respect to V Typical variations are presented graphically in Figs 5 and 6 with reference. Fig.5 Typical O and O period accuracy as a function of supply voltage; astable mode; T ...
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... Philips Semiconductors Monostable/astable multivibrator Fig.6 Typical O and O period accuracy as a function of supply voltage; astable mode; T CURVE f O kHz A 500 10 B 225 100 C 100 100 D 50 100 January 1995 Product specification HEF4047B MSI = 25 C. amb ...
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... Philips Semiconductors Monostable/astable multivibrator 2. Monostable mode design information The following analysis presents worst case variations from unit-to-unit as a function of transfer-voltage (V one-shot (monostalbe) operation ‘ – -------------- – ----------------------------------------------------------- - , where t = – – ...
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... Philips Semiconductors Monostable/astable multivibrator 3. Retrigger mode operation The HEF4047B can be used in the retrigger mode to extend the output pulse duration compare the frequency of an input signal with that of the internal oscillator. In the retrigger mode the input pulse is applied to pins 8 and 12, and the output is taken from pin ...
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... Philips Semiconductors Monostable/astable multivibrator 5. Timing component limitations The capacitor used in the circuit should be non-polarized and have low leakage (i.e. the parallel resistance of the capacitor should be an order of magnitude greater than the external resistor used). There is no upper or lower limit for either R However, in consideration of accuracy, C this capacitance can be measured and taken into account) ...
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... Philips Semiconductors Monostable/astable multivibrator Fig.10 Power consumption as a function of the output frequency Fig.11 Power consumption as a function of the output frequency January 1995 = 5 V; astable mode astable mode Product specification HEF4047B MSI ...
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... Philips Semiconductors Monostable/astable multivibrator Fig.12 Power consumption as a function of the output frequency January 1995 = 15 V; astable mode Product specification HEF4047B MSI ...