Design Problem: Using the 74163 and any necessary logic, design a counter that counts continuously in the following sequence: 0 to 32 skipping 13 then repeats. Discussion: • Modify the counter such that it can be count to 63. Discuss your experience in the laboratory and any problems with the procedure. Show the circuit for the design problem only. Include in your report. Make sure to include the pin numbers of the gates used. You do NOT have to show the package outline, just the pin numbers of the gates.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Theory And Background
Introduction
The 74163 is a synchronous 4-bit binary counter which has the following inputs:
Synchronous active low Load (LD) and Clear (CLR)
Two count enable inputs P and T
Four data inputs A, B, C and D
The counter generates 4-bit output and a ripple carry output (RCO) to enable counters
cascading.
The Synchronous Reset (Clear) input overrides all other control inputs, but is active only
during the rising clock edge.
The counter will count up Count if both ENP and ENT are asserted.
Data inputs A, B, C and D will be loaded if LD is asserted (overrides counting).
The RCO is asserted only if ENT is asserted. So, we can set the counter to stop counting at
15 by setting ENP = 0. Then, RCO = ENT.
The following figures show the connection diagrams and logic diagram of the 74LS163
counter:
74x163
RIPPLE
DUTPUTS
CARRY
ENABLE
VCC outrut OA
LOAD
CLK
O CLR
이 LD
15
14
15
12
11
1
10
ENP
ENT
14
QA
13
QB
12
B
ac
OC
11
QD
15
RCO
CLEAR CLOCK A
D ENABLE GND
DATA INPUTS
State table for a 74163 synchronous 4-bit binary counter
Current State
CLR L LD L ENT ENP QD QC QB QA QD* QC* QB* QA* _RCO*
Inputs
Outputs
1
D
A
QD
QC
QC
QB
QB
1
QA
1
1
QD
QA
1
1
1
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Transcribed Image Text:Theory And Background Introduction The 74163 is a synchronous 4-bit binary counter which has the following inputs: Synchronous active low Load (LD) and Clear (CLR) Two count enable inputs P and T Four data inputs A, B, C and D The counter generates 4-bit output and a ripple carry output (RCO) to enable counters cascading. The Synchronous Reset (Clear) input overrides all other control inputs, but is active only during the rising clock edge. The counter will count up Count if both ENP and ENT are asserted. Data inputs A, B, C and D will be loaded if LD is asserted (overrides counting). The RCO is asserted only if ENT is asserted. So, we can set the counter to stop counting at 15 by setting ENP = 0. Then, RCO = ENT. The following figures show the connection diagrams and logic diagram of the 74LS163 counter: 74x163 RIPPLE DUTPUTS CARRY ENABLE VCC outrut OA LOAD CLK O CLR 이 LD 15 14 15 12 11 1 10 ENP ENT 14 QA 13 QB 12 B ac OC 11 QD 15 RCO CLEAR CLOCK A D ENABLE GND DATA INPUTS State table for a 74163 synchronous 4-bit binary counter Current State CLR L LD L ENT ENP QD QC QB QA QD* QC* QB* QA* _RCO* Inputs Outputs 1 D A QD QC QC QB QB 1 QA 1 1 QD QA 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1. 1. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Design Problem:
Using the 74163 and any necessary logic, design a counter that counts continuously in the
following sequence: 0 to 32 skipping 13 then repeats.
Discussion:
• Modify the counter such that it can be count to 63.
Discuss your experience in the laboratory and any problems with the procedure.
Show the circuit for the design problem only. Include in your report.
Make sure to include the pin numbers of the gates used.
You do NOT have to show the package outline, just the pin numbers of the gates.
Transcribed Image Text:Design Problem: Using the 74163 and any necessary logic, design a counter that counts continuously in the following sequence: 0 to 32 skipping 13 then repeats. Discussion: • Modify the counter such that it can be count to 63. Discuss your experience in the laboratory and any problems with the procedure. Show the circuit for the design problem only. Include in your report. Make sure to include the pin numbers of the gates used. You do NOT have to show the package outline, just the pin numbers of the gates.
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