參數(shù)資料
型號(hào): DS21Q43AT
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 8/60頁
文件大?。?/td> 748K
代理商: DS21Q43AT
DS21Q43A
8 of 60
CONTROL PORT/TEST/SUPPLY PIN LIST
Table 1-3
PIN
SYMBOL
TYPE
57
TEST
I
60
CS
I
58
FS0
I
59
FS1
I
61
BTS
I
63
WR
(R/
W
)
I
62
RD
(DS)
I
23
A0
I
24
A1
I
25
A2
I
26
A3
I
27
A4
I
28
A5
I
29
A6 or ALE (AS)
I
30
INT
O
64
MUX
I
117
D0 or AD0
I/O
118
D1 or AD1
I/O
119
D2 or AD2
I/O
120
D3 or AD3
I/O
121
D4 or AD4
I/O
122
D5 or AD5
I/O
123
D6 or AD6
I/O
124
D7 or AD7
I/O
15
V
DD
-
47
V
DD
-
79
V
DD
-
111
V
DD
-
14
V
SS
-
46
V
SS
-
78
V
SS
-
110
V
SS
-
DESCRIPTION
3-State Control for all Output and I/O Pins.
Chip Select.
Framer Select 0 for Parallel Control Port.
Framer Select 1 for Parallel Control Port.
Bus Type Select for Parallel Control Port.
Write Input (Read/Write).
Read Input (Data Strobe).
Address Bus Bit 0; LSB.
Address Bus Bit 1.
Address Bus Bit 2.
Address Bus Bit 3.
Address Bus Bit 4.
Address Bus Bit 5.
Address Bus Bit 6; MSB or Address Latch Enable (Address Strobe).
Receive Alarm Interrupt for all Four Framers.
Non-Multiplexed or Multiplexed Bus Select.
Data Bus Bit 0 or Address/Data Bus Bit 0; LSB.
Data Bus Bit 1 or Address/Data Bus Bit 1.
Data Bus Bit 2 or Address/Data Bus Bit 2.
Data Bus Bit 3 or Address/Data Bus Bit 3.
Data Bus Bit 4 or Address/Data Bus Bit 4.
Data Bus Bit 5 or Address/Data Bus Bit 5.
Data Bus Bit 6 or Address/Data Bus Bit 6.
Data Bus Bit 7 or Address/Data Bus Bit 7; MSB.
Positive Supply Voltage.
Positive Supply Voltage.
Positive Supply Voltage.
Positive Supply Voltage.
Signal Ground.
Signal Ground.
Signal Ground.
Signal Ground.
相關(guān)PDF資料
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