參數(shù)資料
型號(hào)： MAX3140EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 微控制器/微處理器
英文描述： CABLE ASSEMBLY; LEAD-FREE SOLDER; SMA MALE TO SMC PLUG; 50 OHM, RG400/U COAX, DOUBLE SHIELDED
中文描述： 1 CHANNEL(S), 240K bps, SERIAL COMM CONTROLLER, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-28
文件頁(yè)數(shù)： 12/36頁(yè)
文件大?。?/td> 468K
代理商： MAX3140EEI
M
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
12
______________________________________________________________________________________
Pin Desc ription (c ontinued)
Transc eiver Func tion Tables
21
22
Positive Supply (4.75V to 5.25V)
V
CC
DIN
22
23
24
UART SPI/MICROWIRE Serial-Data Output. High impedance when
CS
is high.
DOUT
24
UART SPI/MICROWIRE Serial-Data Input. Schmitt-trigger input.
23
25
26
UART Active-Low Chip-Select Input. DOUT goes high impedance when
CS
is high.
IRQ
, TX,
and
RTS
are always active. Schmitt-trigger input.
CS
26
27
28
UART Hardware Shutdown Input. When shut down (
SHDN
= 0), the UART oscillator turns off
immediately without waiting for the current transmission to end, reducing the supply current
to just leakage currents.
SHDN
28
UART Active-Low Interrupt Output. Open-drain interrupt output to microprocessor.
IRQ
27
UART SPI/MICROWIRE Serial-Clock Input. Schmitt-trigger input.
SCLK
25
RS-485 Receiver Phase. Connect RXP to GND or leave it unconnected for normal receiver
phase/polarity. Connect RXP to V
CC
to invert the receiver phase/polarity.
RXP
21
FULL
DUPLEX
HALF
DUPLEX
PIN
NAME
FUNCTION
*In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs ( A and B) still have a 1/8-unit load, but
do not affect the receiver output.
RE
DE
TXP
TRANSMITTING
Z
Y
DI
0
1
1
X
1
0
1
0
0
X
1
0
1
0
1
X
1
1
0
1
0
X
1
1
High-Z
High-Z
X
0
0
X
Shutdown (High-Z)
X
1
0
X
0
0
0
0
1
1
1
1
H/
F
OUTPUTS
INPUTS
0
0
1
1
0
0
1
1
RXP
X
X
X
X
X
X
X
X
DE
0
0
0
0
0
0
0
0
RE
≥
-0.05V
≤
-0.2V
≥
-0.05V
≤
-0.2V
X
X
X
X
Open/
Shorted
A-B
1
0
0
1
1
0
0
1
RO
X
X
X
X
≥
-0.05V
≤
-0.2V
≥
-0.05V
≤
-0.2V
Y-Z
0
0
1
1
X
X
X
X
0
0
0
0
0
X
1
Open/
Shorted
X
0
1
1
0
1
0
X
Open/
Shorted
X
Open/
Shorted
X
X
X
1
0
1
1
X
X
X
High-Z
X
Shutdown
(High-Z)
X
OUTPUTS
RECEIVING
INPUTS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3140EEI+ 功能描述:UART 接口集成電路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3140EEI+T 功能描述:UART 接口集成電路 SPI/uWire Compatible RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3140EEI-T 功能描述:UART 接口集成電路 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX3147NC SPL 制造商:Toshiba America Electronic Components 功能描述:NORTEL HDD - Bulk
MAX314C/D 功能描述:模擬開(kāi)關(guān) IC 10Ohm Quad SPST CMOS Analog Switches RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
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