參數(shù)資料
型號(hào): MAX3140EEI+T
廠商: Maxim Integrated Products
文件頁數(shù): 2/36頁
文件大?。?/td> 0K
描述: IC UART W/RS485 28-QSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
特點(diǎn): 收發(fā)器
FIFO's: 8 字節(jié)
規(guī)程: RS232,RS485
電源電壓: 4.75 V ~ 5.25 V
帶IrDA 編碼器/解碼器:
帶故障啟動(dòng)位檢測功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 28-QSOP
供應(yīng)商設(shè)備封裝: 28-QSOP
包裝: 帶卷 (TR)
MAX3140
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
10
______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC = +5V, TA = +25°C, unless otherwise noted.)
0
20
40
60
80
100
120
140
OUTPUT CURRENT vs.
RS-485 DRIVER OUTPUT LOW VOLTAGE
MAX3140-19
OUTPUT LOW VOLTAGE (V)
OUTPUT
CURRENT
(mA)
02468
10
12
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-8
-2
OUTPUT CURRENT vs.
RS-485 DRIVER OUTPUT HIGH VOLTAGE
MAX3140-20
OUTPUT HIGH VOLTAGE (V)
OUTPUT
CURRENT
(mA)
6
4
2
-6
-4
0
50ns/div
VA - VB
(2V/div)
RO
(5V/div)
MAX3140-21
RS-485 RECEIVER PROPAGATION DELAY
(SRL = GND)
50ns/div
VA - VB
(2V/div)
RO
(5V/div)
MAX3140-22
RS-485 RECEIVER PROPAGATION DELAY
(SRL = OPEN OR VCC)
2
μs/div
RS-485 DRIVER PROPAGATION DELAY
(SRL = OPEN)
DI
(5V/div)
VY - VZ
(2.5V/div)
MAX3140-23
500ns/div
RS-485 DRIVER PROPAGATION DELAY
(SRL = VCC)
DI
(5V/div)
VY - VZ
(2.5V/div)
MAX3140-24
50ns/div
RS-485 DRIVER PROPAGATION DELAY
(SRL = GND)
DI
(5V/div)
VY - VZ
(2.5V/div)
MAX3140-25
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