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參數(shù)資料
| 型號： | MN5521Q |
| 廠商： | PANASONIC CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | MULTIFUNCTION PERIPHERAL, PQFP208 |
| 封裝： | 28 X 28 MM, PLASTIC, QFP-208 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大?。?/td> | 152K |
| 代理商： | MN5521Q |
8
MN5521
For Information Equipment
Pin Descriptions (continued)
The P column gives the corresponding power supply group number;
the T column, the I/O direction: I/O = bidirectional, I = input, O = output, Tri = tristate,
IS = Schmidt input, OD = open drain.
Pin No.
Symbol
Pin Type
Function Description
PT
IDE I/F
26
IDED7
5
I/O
IDE data signal 'D7' for IDE interface
27
NHCS1
Tri
Hard-drive-chip select signal-1 for IDE interface
28
NHCS0
Hard-drive-chip select signal-0 for IDE interface
29
NIDEL0
O
IDE lower byte data-enable signal for IDE interface
(This signal occurs when the address is within the IDE region
and both R/W signals for I/O and memory are active.)
30
NIDEHI
IDE upper byte data-enable signal for IDE interface
(This signal occurs when the address is within the IDE region
and both R/W signals for I/O and memory are active.)
EXT FDC I/F
53
NFDCCS
5
O
Floppy disk controller-chip select signal
RTC I/F
104
XI
2
IS
Pins for connecting 32.768-kHz oscillator
105
XO
O
107
NSTOP2
I
Signal for cutting clock signal of 32 kHz from the built-in
real-time clock block (RTC) to the PCC block
108
NRTCRES
IS
Real-time clock reset signal
109
NSTNBY
2
I
Signal switching real-time clock to backup mode
110
NSTOP
Signal switching off OUT32K-pin output
111
NIRQ8
OD
Interrupt request signal from real-time clock
113
OUT32K
O
32.768-kHz clock output
Other interfaces
58
NRIOUT
5
O
Ring indicator signal from I/O PC card
60
ACCESS
Signal indicating access to this chip
67
MHZ24
1
IS
24-MHz clock signal input for internal control and serial
communications (The latter divide the frequency by 13 to
yield the baud rate clock.)
70
NSUSPEND
Signal suspending system operation
76
PWRGOOD
Signal input (POWER GOOD) confirming power from power
supply block (system reset signal for blocks other than the
real-time clock)
87
NSMIOUT
OD
SMI request signal from PCC
89
NSPKROUT
Digital audio signal for driving speaker
64 ,68 ,69
TEST1 ,2 ,3
IS
Test signal input (Keep this pin at "L" level.)
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