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參數(shù)資料
| 型號： | YSS944-VZ |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封裝： | LEAD FREE, PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 36/36頁 |
| 文件大?。?/td> | 831K |
| 代理商： | YSS944-VZ |
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YSS944/943/940
9
Type
Pin
No.
Pin Name
I/O
Note 1)
Function
135
nMUTE
O
This is the output pin during auto mute periods.
133
ZEROFLG
O
This is the consecutive zero data input detection pin.
13
STATUS7
12
STATUS6
11
STATUS5
10
STATUS4
116
STATUS3
115
STATUS2
114
STATUS1
113
STATUS0
O
These are status output pins 7 to 0.
They are used to confirm firmware operations.
Normally, they should be left unconnected.
57
IOPORT7
56
IOPORT6
These are general I/O port pins 7 to 0.
Their I/O status can be set via register settings.
55
IOPORT5
54
IOPORT4
53
IOPORT3
52
IOPORT2
47
IOPORT1
General-purpose
I/O ports
46
IOPORT0
I+/O
These are general I/O port pins 7 to 0.
Their I/O status can be set via register settings.
Pull-up during input, no pull-up during output
16
17
24
25
Test
132
TEST
Is
Test pins
Connect these pins to a ground.
Note 1)
I/O symbols
I:
Input
Is:
Schmitt trigger input
I+:
Input with built-in pull-up circuit *
O:
Output
Ot:
Tri-state output
* The built-in pull-up circuit guarantees a high-level input in LSI when the terminal is opened.
And it is not possible to use it as a high-level output outside of LSI.
Note 2)
Example of circuit connected to crystal oscillator
12.288 MHz
XI
XO
* The above resistor and capacitor vary depending on the crystal oscillator. Be sure to comply with the specifications of the
crystal oscillator used.
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