Transcript 上課投影片

Rise and rise again until lambs become lions
授課老師：伍紹勳
課程助教：江長庭、柯俊先
Rise and rise again until lambs become lions
Outlines
74 series digital integrated circuit (IC)
Tools and devices
– Bread board
– Power supply
– Light-emitting diode (LED)
LAB 1
Rise and rise again until lambs become lions
74 Series Digital IC
74XXOO
– 74LS04、74LS08、
74HC04…
1
2
.
.
.
74XXOO
Logic high and low
74LS00
http://www.ti.com/lit/ds/symlink/sn74ls00.pdf
.
.
13
12
.
.
Rise and rise again until lambs become lions
74 Series Digital IC
Logic gate (邏輯閘)
– NOT gate or INVERT
• B = ~ A or B = A
A
B
– AND gate
Input A
Output B
0
1
1
0
– OR gate
• Q = AB
• Q = A+B
Input A
Input B
Output Q
Input A
Input B
Output Q
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
1
0
1
1
1
1
1
1
1
Rise and rise again until lambs become lions
74 Series Digital IC
Example of logic circuit design
– Alarming system
• Q : Broadcast warning signal
– A : No body at home
– B : Someone enters from the door
– C : Someone enters from the window
Rise and rise again until lambs become lions
74 Series Digital IC
7404
7408
7432
Rise and rise again until lambs become lions
Tools
邏輯分析儀*1 + USB線*1(或power supply)
1pin線*4
8pin線*2
紅鱷魚夾*1 黑鱷魚夾*1
Rise and rise again until lambs become lions
Tools and devices
Logic Analyzer (邏輯分析儀)
– Power supply
– USB connect to PC
GND
5V
5V
GND
Rise and rise again until lambs become lions
Tools and devices
Bread board (麵包板)
麵包板上孔洞旁邊的紅線(或藍線)表示這排洞下面的銅箔
是連通的(共電位)
Rise and rise again until lambs become lions
LAB 1
External Power
VCC
GND
Rise and rise again until lambs become lions
Tools and devices
LED
–
–
–
–
+ : long pin (connect to result)
- : short pin (connect to GND)
Logic 1 : bright
Logic 0 : dark
LED is dark
– Logic 0 ? No signal ? LED is broken ?
– To check it’s logic 0:
• + : long pin (connect to VCC)
• - : short pin (connect to result)
• Logic 0: bright
ps: Don’t directly connect VCC and GND
to LED for a long time. (∵大電流)
Rise and rise again until lambs become lions
LAB1
Show all cases Input/output of 7404(Inverter), 7408(AND),
7432(OR)
Rise and rise again until lambs become lions
LAB 1
1
1
1
0
1
AND
1
1
0
OR
INVERTER