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參數(shù)資料
| 型號： | ISL3331IRZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 20/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX 3.3V RS232/485 40-QFN |
| 產(chǎn)品培訓模塊： | Solutions for Industrial Control Applications |
| 標準包裝： | 50 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 2/2 |
| 規(guī)程： | RS232，RS422，RS485 |
| 電源電壓： | 3.15 V ~ 3.45 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 40-QFN 裸露焊盤（6x6） |
| 包裝： | 管件 |
4
FN6361.0
May 20, 2008
TABLE 3. ISL3331 FUNCTION TABLE
INPUTS
RECEIVER
OUTPUTS
DRIVER
OUTPUTS
DRIVER
DATA
RATE
(Mbps)
CHARGE
PUMPS
(Note 3)
MODE
485/232
ON
RXEN
AND/OR
RXEN
DEN
SLEW
SPB
RA
RB
YZ
0
1
1 and 0
0
N/A
High-Z
-
ON
RS-232
0
1
1 and 0
1
N/A
High-Z
ON
0.46
ON
RS-232
0
1
0 or 1
0
N/A
ON
High-Z
-
ON
RS-232
0
1
0 or 1
1
N/A
ON
0.46
ON
RS-232
0
1 and 0
1
N/A
High-Z
ON
High-Z
0.46
ON
RS-232
0
0 or 1
0
N/A
High-Z
ON
High-Z
0.46
ON
RS-232
0
0 or 1
1
N/A
ON
0.46
RS-232 (Note 4)
X
0
1 and 0
0
X
High-Z
-
OFF
Shutdown
1
1 and 0
0
X
High-Z
-
OFF
RS-485
1
X
1 and 0
1
0
1/0
High-Z
ON
0.46/0.115
OFF
RS-485
1
X
1 and 0
1
X
High-Z
ON
20
OFF
RS-485
1
X
0 or 1
0
X
ON
High-Z
-
OFF
RS-485
1
0 or 1
1
0
1/0
ON
High-Z
ON
0.46/0.115
OFF
RS-485
1
0 or 1
1
X
ON
High-Z
ON
20
OFF
RS-485
1
0
0 or 1
1
0
1/0
ON
High-Z
ON
0.46/0.115
OFF
RS-485 (Note 4)
1
0
0 or 1
1
X
ON
High-Z
ON
20
OFF
RS-485 (Note 4)
NOTES:
3. Charge pumps are on if in RS-232 mode and ON or DEN or RXEN is high, or RXEN is low.
4. Loopback is enabled when ON = 0, and DEN = 1, and (RXEN = 1 or RXEN = 0).
ISL3331 Truth Tables
RS-232 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
485/232
DEN
DY
DZ
YZ
0
1
0011
0
1
0110
0
1
1001
0
1
1100
0
X
High-Z
RS-232 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232 RXEN and/or RXEN
A
B
RA
RB
00 or 1
0
1
00 or 1
0
1
0
00 or 1
1
0
1
00 or 1
1
0
0 or 1
Open
1
0
1 and 0
X
High-Z High-Z
RS-485 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
DATA
485/232
DEN
SLEW
SPB
DY
YZ
Mbps
1
0
0/1
1/0
0/1
0.115
1
0
1
0/1
1/0
0/1
0.460
1
X
0/1
1/0
0/1
20
1
0
X
High-Z High-Z
-
RS-485 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232 RXEN and/or RXEN
B-A
RA
RB
10 or 1
≥ -40mV
1
High-Z
10 or 1
≤ -200mV
0
High-Z
1
0 or 1
Open or Shorted
together
1
High-Z
1
1 and 0
X
High-Z High-Z
ISL3330, ISL3331
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