SPI/I2C UART with 128-Word FIFOs in WLP MAX3108 54 Maxim Integrated Power-Supply" />
參數(shù)資料
型號(hào)： MAX3108EWA+T
廠商： Maxim Integrated Products
文件頁數(shù)： 50/56頁
文件大?。?/td> 0K
描述： IC UART
產(chǎn)品培訓(xùn)模塊： Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
系列： *
SPI/I2C UART with 128-Word FIFOs in WLP
MAX3108
54
Maxim Integrated
Power-Supply Sequencing
The power supplies of the MAX3108 can be turned on
in any order. Each supply can be present over the entire
specified range regardless of the presence or level of the
others. Ensure the presence of the interface supplies VL
and VEXT before sending input signals to the controller
and transceiver interfaces.
Connector Sharing
The TX and RTS outputs can be programmed to be high
impedance. This feature is used in cases where the
MAX3108 shares a common connector with other com-
munications devices. Set the output of the MAX3108 to
high impedance when the other communication devices
are active. Set the MODE1[2]: TXHiZ bit high to set TX
to a high-impedance state. Set the MODE1[3]: RTSHiZ
bit high to set RTS to a high-impedance state. Figure 25
shows an example of connector sharing with a USB
transceiver.
RS-232 5x3 Application
The four GPIOs can be used to implement the other flow
control signals defined in ITU V.24. Figure 26 shows how
the GPIOs create the DSR, DTR, DCD, and RI signals
found on some RS-232/V.28 interfaces.
Set the FlowCtrl[1:0] bits high to enable automatic hard-
ware RTS/CTS flow control.
Figure 25. Connector Sharing with a USB Transceiver
Figure 26. RS-232 Application
MAX3108
TX
RX
MAX13481E
D+
D-
OE
TX/D+
RX/D-
SHARED
CONNECTOR
MAX3108
TX
RX
Tx
Rx
SPI/I2C
MAX3245
T1IN
R1OUT
MICROCONTROLLER
RST
LDOEN
IRQ
RTS
CTS
RTS
CTS
T2IN
R2OUT
GPIO0
GPIO1
DTR
DSR
T3IN
R3OUT
GPIO2
GPIO3
DCD
RI
R4OUT
R5OUT
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