HT9170B View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT9170B' PDF : 13 Pages View PDF
HT9170B/HT9170D
Data output
The data outputs (D0~D3) are tristate outputs. When OE input becomes low, the data outputs (D0~D3) are high imped-
ance.
Application Circuits
Application Circuit 1
D TM F
100kW
0 .1 m F
100kW
T o o th e r d e v ic e
X 'ta l
C1
C2
VSS
V DD
1 VP
V D D 18
2 VN
R T /G T 1 7
3 GS
E S T 16
4 VREF
D V 15
5 IN H
D 3 14
6 PW DN
D 2 13
7 X1
D 1 12
8 X2
D 0 11
9 VSS
O E 10
H T 9 1 7 0 B /D
0 .1 m F
300kW
T o o th e r d e v ic e
Note:
X¢tal = 3.579545MHz crystal
C1 = C2 @ 20pF
X¢tal = 3.58MHz ceramic resonator
C1 = C2 @ 39pF
Application Circuit 2
V DD
D TM F
0 .1 m F R 1
180pF
1
2
VP
VN
V D D 18
R T /G T 1 7
0 .1 m F
0 .1 m F R 2
R5
E S T 16
A v=
R5
R2
=
R 3+R 5
R 1+R 3
R3
R4
3 GS
4 VREF
300kW
D V 15
R 2R 4
R 3= R 2+R 4
T o o th e r d e v ic e
5 IN H
6 PW DN
D 3 14
E x a m p le : A v = 3
D 2 13
R 1=60kW
R 2=100kW
R 3=60kW
R 4=150kW
C1
R 5=300kW
X 'ta l
C2 VSS
7 X1
8 X2
9 VSS
D 1 12
D 0 11
O E 10
H T 9 1 7 0 B /D
T o o th e r d e v ic e
Note:
X¢tal = 3.579545MHz crystal
C1 = C2 @ 20pF
X¢tal = 3.58MHz ceramic resonator
C1 = C2 @ 39pF
Rev. 1.11
8
February 23, 2009
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