MC145446A View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC145446A Datasheet PDF : 14 Pages
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CONTROL REGISTER
E*
(NOTE 6)
6
SCK
7
9
DATA
R/W
1
(NOTE 1)
3
7
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
2
8
1
4
5
(LSB CLOCK)
CD1 CD0 CH SQ T3 T2 T1 T0 A3 A2 A1 A0 M3 M2 M1 M0
10
* The enable signal corresponds to preceding data format.
STATUS REGISTER
11
E
1
(NOTE 7) 18
12
SCK
DATA
13
17
(NOTE 5)
4
3
2
5
123012
2
1 (NOTE 2)
1
4 (NOTE 3)
5
D0 D1 D2 D3 D0 D1 D2 D0 D1
(HIGH–IMPEDANCE)
14
15
16
(NOTE 4)
R/W
NOTES:
1. The data in front of the enable signal pulse will be latched.
2. The latched data will be repeated until there is an enable pulse.
3. The detected data will be updated with the next enable pulse.
4. After the R/W pin becomes INACTIVE, the data will be lost.
5. D1 corresponds to Clock1.
6. The enable and the SCK signals need to be set at the logic low level when the R/W signal changes.
7. The SCK must be held at low level when the enable signal is at high level.
Figure 1. Serial Data Input Timing
MC145446A
6
MOTOROLA
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