參數(shù)資料
型號: PSM2001ACD
英文描述: PSM2001ACD Webchip Module(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ,RS-232驅(qū)動器,RS*485驅(qū)動器構(gòu)成))
中文描述: PSM2001ACD Webchip模塊(網(wǎng)絡(luò)通信控制器模塊(由PS2000ACQ和RS - 232驅(qū)動器,恏巴* 485驅(qū)動器構(gòu)成))
文件頁數(shù): 9/17頁
文件大?。?/td> 385K
代理商: PSM2001ACD
PSM2001ACD WebChip Module Datasheet
Doc. Number:
INHD003
Version 1.0
8/20/2001
6 Recommended Operating Conditions
The recommended operating conditions of the PSM2001ACD are shown in Table 2.
Table 2 Recommended Operating Conditions
MIN NOM MAX
UNIT
Operating ambient temperature
0 +70
C
o
Supply voltage
4.75 5 5.25
V
High level operating voltage, ( /INT, DO, DI, CLK, /CS, RSI,
RSO1, RSO2 )
2
V
Low level operating voltage, ( INT, DO, DI, CLK, CS, RSI, RSO1,
RSO2 )
0.8
V
RS-232 receiver’s input voltage, ( RXD, DCD )
±
30
V
Driver
-60
mA
RS-485 high level output current
Receiver
-8
mA
Driver
60
mA
RS-485 low level output current
Receiver
4
mA
7 Application Notes
7.1
PSM2001ACD and User MCU Interface Method
As shown in Figure 3, the PSM2001ACD uses a standard SPI to connect to the
user’s MCU, and the communication protocol conforms to the MCUnet
TM
protocol.
If the user’s MCU doesn’t have an SPI interface available, a common I/O port can be
used to make up an SPI port. For detailed information on the interface methods
between the PSM2001ACD and the user MCU, please refer to the PSM20XX Family
WebChip
TM
Module User’s Guide, the application note on Interfacing the PSM20XX
Family to 8051 Type Microcontrollers, and the MCUnet
TM
Protocol.
P&S DataCom Corporation
Page
9
of
17
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