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MC14538BDG Scheda tecnica(PDF) 1 Page - ON Semiconductor |
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MC14538BDG Scheda tecnica(HTML) 1 Page - ON Semiconductor |
1 / 12 page © Semiconductor Components Industries, LLC, 2005 August, 2005 − Rev. 7 1 Publication Order Number: MC14538B/D MC14538B Dual Precision Retriggerable/Resettable Monostable Multivibrator The MC14538B is a dual, retriggerable, resettable monostable multivibrator. It may be triggered from either edge of an input pulse, and produces an accurate output pulse over a wide range of widths, the duration and accuracy of which are determined by the external timing components, CX and RX. Output Pulse Width T = RX @ CX (secs) RX = W CX = Farads Features • Unlimited Rise and Fall Time Allowed on the A Trigger Input • Pulse Width Range = 10 ms to 10 s • Latched Trigger Inputs • Separate Latched Reset Inputs • 3.0 Vdc to 18 Vdc Operational Limits • Triggerable from Positive (A Input) or Negative−Going Edge (B−Input) • Capable of Driving Two Low−Power TTL Loads or One Low−Power Schottky TTL Load Over the Rated Temperature Range • Pin−for−pin Compatible with MC14528B and CD4528B (CD4098) • Use the MC54/74HC4538A for Pulse Widths Less Than 10 ms with Supplies Up to 6 V • Pb−Free Packages are Available* MAXIMUM RATINGS (Voltages Referenced to VSS) Symbol Parameter Value Unit VDD DC Supply Voltage Range −0.5 to +18.0 V Vin, Vout Input or Output Voltage Range (DC or Transient) −0.5 to VDD + 0.5 V Iin, Iout Input or Output Current (DC or Transient) per Pin ±10 mA PD Power Dissipation, per Package (Note 1) 500 mW TA Operating Temperature Range −55 to +125 °C Tstg Storage Temperature Range −65 to +150 °C TL Lead Temperature (8−Second Soldering) 260 °C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW/ _C From 65_C To 125_C This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high−impedance circuit. For proper operation, Vin and Vout should be constrained to the range VSS v (Vin or Vout) v VDD. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD). Unused outputs must be left open. http://onsemi.com MARKING DIAGRAMS PDIP−16 P SUFFIX CASE 648 MC14538BCP AWLYYWWG SOIC−16 DW SUFFIX CASE 751G A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G = Pb−Free Indicator SOEIAJ−16 F SUFFIX CASE 966 MC14538B ALYWG See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ORDERING INFORMATION 16 1 1 16 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 14538BG AWLYYWW 16 1 SOIC−16 D SUFFIX CASE 751B TSSOP−16 DT SUFFIX CASE 948F 14538BG AWLYWW 14 538B ALYW 1 16 1 16 |
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