參數(shù)資料
型號: ISL3332IAZ
廠商: INTERSIL CORP
元件分類: Buffer和線驅(qū)動
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: 28-SSOP
中文描述: DUAL LINE TRANSCEIVER, PDSO28
封裝: ROHS COMLIANT, PLASTIC, MO-150-AHB, SSOP-28
文件頁數(shù): 20/26頁
文件大小: 946K
代理商: ISL3332IAZ
3
FN6362.0
May 27, 2008
TABLE 2. ISL3332 FUNCTION TABLE
INPUTS
RECEIVER OUTPUTS
DRIVER OUTPUTS
CHARGE PUMPS
(NOTE 1)
MODE
SEL1 or 2
ON/OFF
DE 1 or 2
RA
RB
YZ
0
1
N.A.
ON
RS-232
X
0
X
High-Z
OFF
Shutdown
1
0
ON
High-Z *
High-Z
OFF
RS-485
1
ON
High-Z *
ON
OFF
RS-485
NOTE:
1. 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.
ISL3332 Truth Tables (FOR EACH PORT)
RS-232 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF
DY
DZ
YZ
0
10011
0
10110
0
11001
0
11100
0
X
High-Z
RS-232 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
AB
RA
RB
0
10011
0
10110
0
11001
0
11100
0
1
Open
1
0
X
High-Z
RS-485 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF
DE1 or 2
DY
YZ
1
11010
1
11101
1
0
X
High-Z
1
0
X
High-Z
RS-485 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
B-A
RA
RB *
11
≥ -40mV
1
High-Z
11
≤ -200mV
0
High-Z
1
Open or Shorted together
1
High-Z
1
0
X
High-Z
* Internally pulled high through a 40k
Ω resistor.
ISL3332, ISL3333
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