TRlTÖNG DH SLf PHAM KY THUÄT
THÄNH PHÖ HO CHI MINH
KHOA CÖ KHI CHE TAO MAY
BÖ MÖN CÖ DIEN TU*
DE THI CUÖI KY HK II NH 2018 - 2019
Mön: Ky thuat so.
Mä mön hoc: DITE226829.
De so/Mä de: 01. De thi cö 01 trang.
Thai gian: 60 phüt.
Dvrgc phep su düng täi lieu.
Cäu 1: (2 diem)
Cho mach DAC 8 bit cö dien äp ngö ra circ dai Vfs = 5,1V.
a. Tim ngö väo so D7D6D5D4D3D2D1D0 khi ngö ra Vout = 3V. (1 diem)
b. Tim ngö ra Vout khi ngö väo 101010012. (1 diem)
Cäu 2: (4 diem)
Mach dieu khien den giao thöng (Den sang (m üc 1) tu* träi sang phäi RED - YELLOW - GREEN)
nhir hinh sau:
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a. Xäc dinh häm logic cho den RED. (1 diem)
b. Xäc dinh häm logic cho den YELLOW . (1 diem)
c. Xäc dinh häm logic cho den GREEN. (1 diem)
d. Lap bäng trang thäi (su that) cho mach dieu khien den giao thöng. (1 diem)
Cäu 3: (4 diem)
Thiet ke mach dem nhi phän döng bo theo bieu dö trang thäi nhu sau:
a. Xäc dinh so FF JK cö CLK täc döng canh len, PRE vä CLR täc döng muc cao. (0.5 diem)
b. Lap bäng trang thäi (sir that). (1 diem)
c. Tim häm ngö väo cäc FF JK. (1.5 diem)
d. Ve mach dem. (1 diem)___________________________________________________________
Ghi chü: Cän bö coi thi khöng äuac giäi thich de thi.
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Chuän däu ra cüa hoc phän (ve kien thurc) Nöi düng kiem tra
[CDR G l. 1 ]: Trinh bäy dirgc tinh khä düng cüa he thöng so. Cäu 1,2
[CDR G2.1]: Trinh bäy dugc phuang phäp thiet ke cho he thöng so. Cäu 2, 3
Ngäy 30 thäng 5 näm 2019
Thöng qua bo mön
(ky vä ghi rö ho ten).
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