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MC14520B

ON Semiconductor
Part Number MC14520B
Manufacturer ON Semiconductor
Description Dual Up Counters
Published Apr 20, 2007
Detailed Description MC14518B, MC14520B Dual Up Counters The MC14518B dual BCD counter and the MC14520B dual binary counter are constructed...
Datasheet PDF File MC14520B PDF File

MC14520B
MC14520B

Overview
MC14518B, MC14520B Dual Up Counters The MC14518B dual BCD counter and the MC14520B dual binary counter are constructed with MOS P−channel and N−channel enhancement mode devices in a single monolithic structure.
Each consists of two identical, independent, internally synchronous 4−stage counters.
The counter stages are type D flip−flops, with interchangeable Clock and Enable lines for incrementing on either the positive−going or negative−going transition as required when cascading multiple stages.
Each counter can be cleared by applying a high level on the Reset line.
In addition, the MC14518B will count out of all undefined states within two clock periods.
These complementary MOS up counters find primary use in multi−stage synchronous or ripple counting applications requiring low power dissipation and/or high noise immunity.
Features • Diode Protection on All Inputs • Supply Voltage Range = 3.
0 Vdc to 18 Vdc • Internally Synchronous for High Internal and External Speeds • Logic Edge−Clocked Design − Incremented on Positive Transition of Clock or Negative Transition on Enable • Capable of Driving Two Low−power TTL Loads or One Low−power Schottky TTL Load Over the Rated Temperature Range • NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable • This Device is Pb−Free and is RoHS Compliant http://onsemi.
com SOIC−16 WB DW SUFFIX CASE 751G PIN ASSIGNMENT CA EA Q0A Q1A Q2A Q3A RA VSS 1 2 3 4 5 6 7 8 16 VDD 15 RB 14 Q3B 13 Q2B 12 Q1B 11 Q0B 10 EB 9 CB MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 1) Symbol Parameter Value VDD DC Supply Voltage Range −0.
5 to +18.
0 Unit V MARKING DIAGRAM 16 Vin, Vout Iin, Iout PD TA Tstg TL Input or Output Voltage Range (DC or Transient) Input or Output Current (DC or Transient) per Pin Power Dissipation, per Package (Note 2) Operating Temperature Range Storage Temperature Range Lead Temperature (8−Second Soldering) −0.
5 to VDD + 0.
5 ...


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