參數(shù)資料
型號(hào): MAX3171CAI
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 通用總線功能
英文描述: 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述: TRIPLE LINE TRANSCEIVER, PDSO28
封裝: 5.30 MM, 0.65 MM PITCH, SSOP-28
文件頁數(shù): 7/15頁
文件大小: 271K
代理商: MAX3171CAI
M
+3.3V Multiprotocol 3Tx/3Rx
Software-Selectable Control Transceiver
_______________________________________________________________________________________
7
Pin Description
PIN
NAME
FUNCTION
1
V+
Positive Supply Generated by the Charge Pump (connect to V+ pin of MAX3172/MAX3174).
Bypass V+ to ground with a 3.3μF ceramic capacitor.
2
C2+
Positive Terminal of the Inverting Charge-Pump Capacitor. Connect C2+ to C2- with a 1μF
ceramic capacitor.
3
C2-
Negative Terminal of the Inverting Charge-Pump Capacitor. Connect C2+ to C2- with a 1μF
ceramic capacitor.
4
V-
Negative Supply Generated by the Charge Pump (connect to V- pin of MAX3172/MAX3174).
Bypass V- to ground with a 3.3μF ceramic capacitor.
5, 6, 7
T_IN
Transmitter CMOS Inputs (T1IN, T2IN, T3IN)
8, 9, 10
R_OUT
Receiver CMOS Outputs (R1OUT, R2OUT, R3OUT)
11, 12, 13
M_
Mode Select Inputs (M0, M1, M2). Internally pulled up to V
CC
. See Table 1 for detailed
information.
14
DCE/
DTE
DCE/
DTE
Mode Select Input. Logic level high selects DCE interface; logic level low selects
DTE interface. Internally pulled up to V
CC
.
15, 18
R_INB
Noninverting Receiver Inputs (R3INB, R2INB)
16, 17
R_INA
Inverting Receiver Inputs (R3INA, R2INA)
19
T3OUTB/R1INB
Noninverting Transmitter Output/Noninverting Receiver Input
20
T3OUTA/R1INA
Inverting Transmitter Output/Inverting Receiver Input
21, 23
T_OUTB
Noninverting Transmitter Outputs (T2OUTB, T1OUTB)
22, 24
T_OUTA
Inverting Transmitter Outputs (T2OUTA, T1OUTA)
25
C1-
Negative Terminal of the Voltage-Doubler Charge-Pump Capacitor. Connect C1+ to C1- with
a 1μF ceramic capacitor.
26
GND
Ground
27
V
CC
+3.3V Supply Voltage (±5%). Bypass V
CC
to ground with a 3.3μF ceramic capacitor.
28
C1+
Positive Terminal of the Voltage-Doubler Charge-Pump Capacitor. Connect C1+ to C1- with a
1μF ceramic capacitor.
Figure 3. V.10/V.28 Driver Test Circuit
R
L
C
L
Tx
Figure 4. V.10/V.28 Receiver Test Circuit
Test Circuits (continued)
50pF
Tx
Rx
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