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参数资料
| 型号： | ISL3333IRZ-T |
| 厂商： | INTERSIL CORP |
| 元件分类： | Buffer和线驱动 |
| 英文描述： | 3.3V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485) Transceivers; Temperature Range: -40°C to 85°C; Package: 40-QFN T&R |
| 中文描述： | DUAL LINE TRANSCEIVER, PQCC40 |
| 封装： | 6 X 6 MM, ROHS COMPLIANT, PLASTIC, QFN-40 |
| 文件页数： | 21/26页 |
| 文件大小： | 946K |
| 代理商： | ISL3333IRZ-T |
4
FN6362.0
May 27, 2008
TABLE 3. ISL3333 FUNCTION TABLE
INPUTS
RECEIVER
OUTPUTS
DRIVER
OUTPUTS
CHARGE
PUMPS
(NOTE 2)
DRIVER
DATA
RATE
(Mbps)
MODE
SEL1 or 2 ON/OFF
SPA
SPB
RXEN 1
or 2
DEN 1
or 2
DE 1 or 2
RA
RB
YZ
0
1
X
0
N.A.
ON
High-Z
ON
0.46
RS-232
0
1
X
0
1
N.A.
ON
0.46
RS-232
0
1
X
1
0
N.A.
High-Z
ON
0.46
RS-232
0
1
X
1
N.A.
High-Z
ON
0.46
RS-232
X
0
X
High-Z
OFF
N.A.
Shutdown
1
X
0
N.A.
0
ON
High-Z * High-Z
High-Z
OFF
N.A.
RS-485
1
0
N.A.
1
ON
High-Z *
ON
OFF
0.46
RS-485
1
0
1
0
N.A.
1
ON
High-Z *
ON
OFF
0.115
RS-485
1
0
N.A.
1
ON
High-Z *
ON
OFF
20
RS-485
1
0
N.A.
1
ON
High-Z *
ON
OFF
20
RS-485
1
X
1
N.A.
0
High-Z High-Z * High-Z
High-Z
OFF
N.A.
RS-485
1
0
1
N.A.
1
High-Z High-Z *
ON
OFF
0.46
RS-485
1
0
1
N.A.
1
High-Z High-Z *
ON
OFF
0.115
RS-485
1
0
1
N.A.
1
High-Z High-Z *
ON
OFF
20
RS-485
1
N.A.
1
High-Z High-Z *
ON
OFF
20
RS-485
NOTE:
2. Charge pumps are off if SEL1 = SEL2 = 1, or if ON/OFF = 0. If ON = 1, and either port is programmed for RS-232 mode, then the charge pumps
are on.
ISL3333 Truth Tables (FOR EACH PORT)
RS-232 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF DEN1 or 2
DY
DZ
YZ
01
1
0
1
01
1
0
1
0
01
1
0
1
01
1
0
1
0
X
High-Z High-Z
0
X
High-Z High-Z
RS-232 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
RXEN 1
or 2
A
B
RA
RB
0
1
000
1
0
1
001
1
0
1
010
0
1
0
1
011
0
1
0
Open
1
0
1
X
High-Z High-Z
0
X
High-Z High-Z
RS-485 TRANSMITTING MODE
INPUTS
OUTPUTS
DATA
RATE
SEL1
or 2
ON/
OFF
DE
1 or 2 SPA SPB
DY
YZ
Mbps
1
0
0/1
1/0
0/1
0.46
1
0
1
0/1
1/0
0/1
0.115
1
X
0/1
1/0
0/1
20
1
0
X
High-Z High-Z
N.A.
1
0
X
High-Z High-Z
N.A.
RS-485 RECEIVING MODE
INPUTS
OUTPUT
SEL1
or 2
ON/OFF
RXEN 1
or 2
B-A
RA
RB *
11
0
≥ -40mV
1
High-Z
11
0
≤ -200mV
0
High-Z
1
0
Open or Shorted
together
1
High-Z
1
X
High-Z High-Z
1
0
X
High-Z High-Z
* Internally pulled high through a 40k
Ω resistor.
ISL3332, ISL3333
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