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MC14516BFEL bảng dữ liệu(PDF) 1 Page - ON Semiconductor |
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1 / 11 page © Semiconductor Components Industries, LLC, 2006 June, 2006 − Rev. 7 1 Publication Order Number: MC14516B/D MC14516B Binary Up/Down Counter The MC14516B synchronous up/down binary counter is constructed with MOS P−channel and N−channel enhancement mode devices in a monolithic structure. This counter can be preset by applying the desired value, in binary, to the Preset inputs (P0, P1, P2, P3) and then bringing the Preset Enable (PE) high. The direction of counting is controlled by applying a high (for up counting) or a low (for down counting) to the UP/DOWN input. The state of the counter changes on the positive transition of the clock input. Cascading can be accomplished by connecting the Carry Out to the Carry In of the next stage while clocking each counter in parallel. The outputs (Q0, Q1, Q2, Q3) can be reset to a low state by applying a high to the reset (R) pin. This CMOS counter finds primary use in up/down and difference counting. Other applications include: (1) Frequency synthesizer applications where low power dissipation and/or high noise immunity is desired, (2) Analog−to−Digital and Digital−to−Analog conversions, and (3) Magnitude and sign generation. Features • Diode Protection on All Inputs • Supply Voltage Range = 3.0 Vdc to 18 Vdc • Internally Synchronous for High Speed • Logic Edge−Clocked Design — Count Occurs on Positive Going Edge of Clock • Single Pin Reset • Asynchronous Preset Enable Operation • Capable of Driving Two Low−Power TTL Loads or One Low−Power Schottky Load Over the Rated Temperature Range • Pb−Free Packages are Available* MAXIMUM RATINGS (Voltages Referenced to VSS) Parameter Symbol Value Unit DC Supply Voltage Range VDD −0.5 to +18.0 V Input or Output Voltage Range (DC or Transient) Vin, Vout −0.5 to VDD + 0.5 V Input or Output Current (DC or Transient) per Pin Iin, Iout ±10 mA Power Dissipation, per Package (Note 1) PD 500 mW Ambient Temperature Range TA −55 to +125 °C Storage Temperature Range Tstg −65 to +150 °C Lead Temperature (8−Second Soldering) TL 260 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW/ _C From 65_C To 125_C *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 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 See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ORDERING INFORMATION A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G = Pb−Free Package MARKING DIAGRAMS PDIP−16 P SUFFIX CASE 648 SOIC−16 D SUFFIX CASE 751B 1 16 14516BG AWLYWW SOEIAJ−16 F SUFFIX CASE 966 1 16 MC14516B ALYWG 16 1 MC14516BCP AWLYYWWG 1 1 1 |
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