參數(shù)資料
型號： MAX3140CEI+T
廠商： Maxim Integrated Products
文件頁數(shù)： 12/36頁
文件大小： 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
標準包裝： 2,500
特點： 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： 是
帶故障啟動位檢測功能： 是
帶CMOS： 是
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
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = +5V ±5%, DE = VCC, RE = GND, SHDN = VCC, fXTL = 1.8432MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values
are measured with VCC = +5V, UART configured for 9600 baud, TA = +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC to GND ..........................................................................+6V
Input Voltage to GND (CS, SHDN, X1, CTS, RX, DIN, SCLK,
RE, DE, H/F, SRL, TXP, RXP, Dl) .............-0.3V to (VCC + 0.3V)
Output Voltage to GND
DOUT, RTS, TX, X2, RO...........................-0.3V to (VCC + 0.3V)
IRQ ........................................................................-0.3V to +6V
Driver Output Voltage (Y, Z) ...............................................±13V
Receiver Input Voltage, Half Duplex (Y, Z)......................... ±13V
Receiver Input Voltage, Full Duplex (A, B) .........................±25V
TX, RTS Output Current ...................................................100mA
X2, DOUT, IRQ Short-Circuit Duration
(to VCC or GND) ......................................................Continuous
Continuous Power Dissipation (TA = +70°C)
28-pin QSOP (derate 10.8mW/°C above +70°C)..........860mW
Operating Temperature Ranges
MAX3140CEI .......................................................0°C to +70°C
MAX3140EEI ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Soldering Temperature (reflow) .......................................+260°C
ISOURCE = 5mA; DOUT, RTS
SHDN = GND or SHDNi bit = 1;
DE = GND; RE = VCC
SHDN = GND or SHDNi bit = 1
CONDITIONS
VCC - 0.5
pF
5
CIN2
Input Capacitance
A
±1
ILKG1
Input Leakage Current
mV
250
VHYST2
Input Hysteresis
V
0.3VCC
VIL2
Input Low Voltage
V
0.7VCC
VIH2
Input High Voltage
pF
5
CIN1
Input Capacitance
25
V
0.2VCC
VIL1
Input Low Voltage
V
0.7VCC
VIH1
Input High Voltage
0.64
1.6
0.7
1.9
A
20
ICC SHDN
(FULL)
Supply Current with Both
RS-485 Transceiver and UART
Shut Down
0.74
2
mA
0.69
1.8
ICC
Supply Current
mA
0.47
1
ICC SHDN
UART
Supply Current with Only UART
Shut Down
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ISINK = 4mA; DOUT, RTS
ISOURCE = 10mA; TX only
0.4
V
VCC - 0.5
VOH1
Output High Voltage
V
4.75
5.25
VCC
Supply Voltage
VX1 = 0 or VCC
A
2
IIN1
Input Current
SHDNi bit = 0
SHDNi bit = 1
ISINK = 25mA; TX only
V
0.9
VOL1
Output Low Voltage
CS = VCC; DOUT only
A
5
ILKG2
Output Leakage
±1
COUT1
Output Capacitance
pF
SHDN = VCC;
SHDNi bit = 0,
no load
DE = VCC
DE = GND
DE = VCC
DE = GND
SRL = VCC
SRL = GND
or open
UART OUTPUTS (DOUT, TX, RTS)
UART LOGIC INPUTS (DIN, SCLK, CS, SHDN, CTS, RX)
UART OSCILLATOR INPUT (X1)
POWER SUPPLY
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