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參數(shù)資料
| 型號(hào)： | LC897127K |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封裝： | SQFP-144 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大?。?/td> | 79K |
| 代理商： | LC897127K |
No. 6251-8/14
LC897127K
LC897127K Pin Functions
When ATAPI to SCSI Conversion is Used
Type
I
INPUT
B
BIDIRECTION
NC
NOT CONNECT
O
OUTPUT
P
POWER
Pin No.
Pin
Type
Function
1VSS0
P
2
IO2
B
ATAPI data I/O.
3
IO1
B
These pins have built-in pull-up resistors.
4
IO0
B
5
MCK2SEL
I
This pin must be connected to VDD.
6VSS0
P
7VSS0
P
8VSS0
P
9VDD
P
10
NC
11
VDD
P
12
DMARQ
I
ATAPI interface
13
VDD
P
14
DIOW
O
15
DIOR
O
ATAPI interface
16
DMACK
O
17
MCK
O
XTALCLK0 1/1, 1/2, and stop output
18
VDD
P
19
VSS0
P
20
RESET
I
IC reset. The IC is reset on a low-level input.
21
CSCTRL
I
Microcontroller CS low/high
22
TEST3
I
23
TEST0
I
Test pins. These pins must be connected to VSS0 in normal operation.
24
TEST1
I
25
TEST2
I
26
VSS0
P
27
XTALCK0
I
Crystal oscillator circuit input
28
XTAL0
O
Crystal oscillator circuit output
29
TEST4
I
Test pin. This pin must be connected to VSS0 in normal operation.
30
VSS0
P
31
VSS0
P
32
VSS0
P
33
VSS0
P
34
IOP7
I
General-purpose inputs
35
IOP6
I
These pins have built-in pull-up resistors.
36
VSS0
P
37
VDD
P
38
IOP5
I
39
IOP4
I
40
IOP3
I
General-purpose inputs
41
IOP2
I
These pins have built-in pull-up resistors.
42
IOP1
I
43
IOP0
I
44
VSS0
P
45
RD
I
Microcontroller data read signal input
46
WR
I
Microcontroller data write signal input
47
CS
I
Register chip select input from the microcontroller
48
SUA0
I
49
SUA1
I
50
SUA2
I
Microcontroller register selection signals
51
SUA3
I
52
SUA4
I
53
SUA5
I
Continued on next page.
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