參數(shù)資料
型號(hào)： ISL3331IRZ
廠商： INTERSIL CORP
元件分類： Buffer和線驅(qū)動(dòng)
英文描述： 3.3V, ±15kV ESD Protected, Dual Protocol (RS-232/RS-485) Transceivers; Temperature Range: -40°C to 85°C; Package: 40-QFN
中文描述： DUAL LINE TRANSCEIVER, PQCC40
封裝： 6 X 6 MM, ROHS COMPLIANT, PLASTIC, QFN-40
文件頁數(shù)： 20/25頁
文件大小： 945K
代理商： ISL3331IRZ
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
ON
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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