DIGI-210 Review 2 Counters, Coders, Monos ©Paul Godin

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Presentation transcript:

DIGI-210 Review 2 Counters, Coders, Monos ©Paul Godin Created September 2007 Last edit Sept 2009

Determine the truncating state and the modulus of the following active-high up counters (1):

Determine the truncating state and the modulus of the following active-high up counters (2):

Determine the Count Direction (1)

Determine the Count Direction (2)

Determine the output states of the following devices 1 1 1 1 1

Configure the following counter as a symmetrical divide-by-10 (indicate the connections) Image from Texas Instruments

Configure the following counter as a divide-by-6 (indicate the connections) Image from Texas Instruments

Configure the following Monostable to provide a 6 second pulse on a negative edge trigger. Q R/C C R k= 0.23, C = 33uF

Determine the outputs for the 8-to-3 priority encoders with active-low input and active high output, with input enable A B C 1 2 3 4 5 6 7 En A B C 1 2 3 4 5 6 7 En

LED Circuit Calculate the value for R, given: Vout = 0 Volts VF = 1.5 Volts IMAX = 15 mA Calculate I, given: VOUT = 0.4 Volts VF = 1.8 Volts R = 330 Ω Vcc

Describe the output of the following circuit. Counter A B C Reset Monostable Non-retrig. 0.1 s 6Hz 3 2 1 Timing Diagram