參數(shù)資料
型號(hào)： DS2406X
英文描述： Dual Addressable Switch Plus 1K-Bit Memory
中文描述： 雙址開(kāi)關(guān)與1K位存儲(chǔ)器
文件頁(yè)數(shù)： 16/30頁(yè)
文件大?。?/td> 156K
代理商： DS2406X
DS2406
16 of 30
After the Channel Control bytes have been transmitted the bus master receives the Channel Info byte
(Figure 9). This byte indicates the status of the channel flip-flops, the PIO pins, the activity latches as
well as the availability of channel B and external power supply. To be able to read from a PIO channel,
the output transistor needs to be non-conducting, which is equivalent to a 1 for the channel flip-flop.
Reading 0 for both the channel flip-flop and the sensed level indicates that the output transistor of the PIO
is pulling the node low. For the Channel Info byte PIO A and B are sampled at the same time, as in the
synchronous mode. If channel B is available, bit 6 of the Channel Info Byte reads 1. For 1-channel
versions of the DS2406, the PIO B sensed level, channel flip-flop value, and activity latch value should
be ignored. Without an external supply, the supply indication bit (bit 7) reads 0. As long as the voltage
applied to the V
CC
pin is high enough to operate the device this bit will read 1.
CHANNEL INFO BYTE
Figure 9
BIT 7
BIT 6
Supply
Indication
0 = no
supply
A only
BIT 5
PIO-B
Activity
Latch
BIT 4
PIO-A
Activity
Latch
BIT 3
PIO B
Sensed
Level
BIT 2
PIO A
Sensed
Level
BIT 1
PIO-B
Channel
Flip-Flop Q
BIT 0
PIO-A
Channel
Flip-Flop Q
Number of
Channels
0 = channel
ONE-CHANNEL READ/WRITE
Figure 10a
READ (IC=0, Asynchronous Mode)
PIO
1-WIRE
WRITE (IC=0, Asynchronous Mode)
td1
15 μs < td1 < 60 μs
PIO
1-WIRE
td0
200 ns < td0 < 300 ns
PIO SAMPLING
TWO-CHANNEL READ
Figure 10b
PIO SAMPLING
1
2
PIO-A
1-WIRE
1-WIRE
PIO-B
IC=1, SYNCHRONOUS MODE
A1
B1
IC=0, ASYNCHRONOUS MODE
3
5
7
9
8
6
4
A3
B3
A5
B5
A7
B7
A9
A1
B2
A3
B4
A5
B6
A7
B8
A9
相關(guān)PDF資料
PDF描述
DS2407 Dual Addressable Switch Plus 1K.Bit Memory
DS2407P Dual Addressable Switch Plus 1K.Bit Memory
DS2407T Dual Addressable Switch Plus 1K.Bit Memory
DS2407V Dual Addressable Switch Plus 1K.Bit Memory
DS2407X Dual Addressable Switch Plus 1K.Bit Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2407 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Addressable Switch Plus 1K.Bit Memory
DS2407FP000 制造商:Thomas & Betts 功能描述:200A,CON,3P4W,MG,407,3P250V
DS2407MP000 制造商:Thomas & Betts 功能描述:200A,PLG,3P4W,MG,407,3P250V
DS2407MP00K 制造商:Thomas & Betts 功能描述:200A,PLG,3P4W,MG,407,00K,3P250V
DS2407MR000 制造商:Thomas & Betts 功能描述:200A,NLT,3P4W,MG,407,3P250V
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