參數(shù)資料
型號(hào): DS21Q41BT
廠商: DALLAS SEMICONDUCTOR
元件分類: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PQFP128
封裝: TQFP-128
文件頁數(shù): 59/61頁
文件大?。?/td> 714K
代理商: DS21Q41BT
DS21Q41B
7 of 61
CONTROL PORT/TEST/SUPPLY PIN LIST Table 1-3
PIN
SYMBOL
TYPE
DESCRIPTION
57
TEST
I
3-State Control for all Output and I/O Pins
60
CS
I
Chip Select
58
FS0
I
Framer Select 0 for Parallel Control Port
59
FS1
I
Framer Select 1 for Parallel Control Port
61
BTS
I
Bus Type Select for Parallel Control Port
63
WR
(R/ W )
I
Write Input (Read/Write)
62
RD
(DS)
I
Read Input (Data Strobe)
23
A0
I
Address Bus Bit 0; LS
24
A1
I
Address Bus Bit 1
25
A2
I
Address Bus Bit 2
26
A3
I
Address Bus Bit 3
27
A4
I
Address Bus Bit 4
28
A5
I
Address Bus Bit 5
29
A6 or ALE (AS)
I
Address Bus Bit 6; MSB or Address Latch Enable (Address
Strobe)
30
INT
O
Receive Alarm Interrupt for all Four Framers
64
MUX
I
Non-Multiplexed or Multiplexed Bus Select
117
D0 or AD0
I/O
Data Bus Bit 0 or Address/Data Bus Bit 0; LSB
118
D1 or AD1
I/O
Data Bus Bit 1 or Address/Data Bus Bit 1
119
D2 or AD2
I/O
Data Bus Bit 2 or Address/Data Bus Bit 2
120
D3 or AD3
I/O
Data Bus Bit 3 or Address/Data Bus Bit 3
121
D4 or AD4
I/O
Data Bus Bit 4 or Address/Data Bus Bit 4
122
D5 or AD5
I/O
Data Bus Bit 5 or Address/Data Bus Bit 5
123
D6 or AD6
I/O
Data Bus Bit 6 or Address/Data Bus Bit 6
124
D7 or AD7
I/O
Data Bus Bit 7 or Address/Data Bus Bit 7; MSB
15
VDD
-
Positive Supply Voltage
47
VDD
-
Positive Supply Voltage
79
VDD
-
Positive Supply Voltage
111
VDD
-
Positive Supply Voltage
14
VSS
-
Signal Ground
46
VSS
-
Signal Ground
78
VSS
-
Signal Ground
110
VSS
-
Signal Ground
相關(guān)PDF資料
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DS21Q42TN DATACOM, FRAMER, PQFP128
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參數(shù)描述
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