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參數(shù)資料
| 型號(hào)： | MAX3250EAI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS-232 250KBPS 28-SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 2/2 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
MAX3250
±50V Isolated, 3.0V to 5.5V,
250kbps, 2 TX/2 RX, RS-232 Transceiver
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V to 5.5V, see Typical Operating Circuit and Table 1 for capacitor values, ISOCOM = GND, TA = TMIN to TMAX, unless oth-
erwise noted. Typical values are at VCC = 3.3V and TA = +25°C.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RECEIVER INPUTS (relative to ISOCOM)
Input-Voltage Range
-25
+25
V
VCC = 3.3V
1.2
0.6
Input Threshold Low
TA = +25°C
VCC = 5.0V
1.3
0.8
V
VCC = 3.3V
2.4
1.6
Input Threshold High
TA = +25°C
VCC = 5.0V
2.4
1.7
V
Input Hysteresis
0.5
V
Input Resistance
TA = +25°C
3
5
7
k
TRANSMITTER OUTPUTS (relative to ISOCOM)
Output-Voltage Swing
All transmitter outputs loaded with 3k
to ISOCOM,
TA = +25°C
±5.0
±5.4
V
Output Resistance
ISOVCC = V+ = V- = 0V, VT_OUT =
±2V
300
10M
Output Short-Circuit Current
-60
+60
mA
Output Leakage Current
VCC = 0 or 3V to 5.5V, VT_OUT =
±12V, SHDN = GND
-25
+25
A
TIMING CHARACTERISTICS
(VCC = 3.0V to 5.5V, see Typical Operating Circuit and Table 1 for capacitor values, ISOCOM = GND, TA = TMIN to TMAX, unless oth-
erwise noted. Typical values are at VCC = 3.3V and TA = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Data Rate
RL = 3k
, CL = 1000pF to ISOCOM, one transmitter,
TA = +25°C
250
kbps
Receiver Propagation Delay
R_IN to R_OUT, CL = 150pF to GND
0.4
s
Receiver Skew
|tPHL - tPLH|
100
ns
Transmitter Skew
|tPHL - tPLH| (Note 3)
120
ns
CL = 150pF to 1000pF
to ISOCOM
630
Transition-Region Slew Rate
VCC = 3.3V, TA = +25°C,
RL = 3k
to 7k to ISOCOM,
measured from +3V to -3V or
-3V to +3V
CL = 150pF to 2500pF
to ISOCOM
430
V/s
FAULT Propagation Delay
0.3
s
Time to Shutdown
0.5
s
VISOCOM = GND
300
Time to Exit Shutdown
VISOCOM =
±50V
350
s
Note 2: All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device
ground, unless otherwise noted.
Note 3: Transmitter skew is measured at the transmitter zero crosspoints.
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