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| 型号： | MAX244EQH+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 35/38页 |
| 文件大小： | 0K |
| 描述： | IC RS-232 DRVR/RCVR 44-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 8/10 |
| 规程： | RS232 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
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mA
+5V-Powered, Multichannel RS-232
Drivers/Receivers
V
0.8
1.2
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Normal operation
VSHDN = 5V (MAX223)
VSHDN = 0V (MAX235/236/240/241)
1.7
2.4
RS-232 Input Logic-Low Voltage
TA = +25°C,
VCC = +5V
0.6
1.5
V
RS-232 Input Logic-High Voltage
TA = +25°C,
VCC = +5V
Shutdown (MAX223)
VSHDN = 0V,
VEN = +5V (R4IN R5IN)
1.5
2.4
ELECTRICAL CHARACTERISTICS—MAX223/MAX230–MAX241 (continued)
(MAX223/230/232/234/236/237/238/240/241, VCC = +5V ±10%; MAX233/MAX235, VCC = +5V ±5% C1–C4 = 1.0F;
MAX231/MAX239, VCC = +5V ±10%; V+ = +7.5V to +13.2V; TA = TMIN to TMAX; unless otherwise noted.) (Note 5)
Shutdown (MAX223)
VSHDN = 0V,
VEN = +5V (R4IN, R5IN)
Normal operation
VSHDN = +5V (MAX223)
VSHDN = 0V (MAX235/236/240/241)
RS-232 Input Hysteresis
VCC = +5V, no hysteresis in shutdown
0.2
0.5
1.0
V
RS-232 Input Resistance
TA = +25°C, VCC = +5V
35
7
k
Ω
TTL/CMOS Output Voltage Low
IOUT = 1.6mA (MAX231/232/233, IOUT = 3.2mA)
0.4
V
TTL/CMOS Output Voltage High
IOUT = -1mA
3.5
VCC - 0.4
V
TTL/CMOS Output Leakage Current
0V
≤ ROUT ≤ VCC; VEN = 0V (MAX223);
VEN = VCC (MAX235–241)
±0.05
±10
A
MAX223
600
ns
Receiver Output Enable Time
Normal
operation
MAX235/236/239/240/241
400
MAX223
900
ns
Receiver Output Disable Time
Normal
operation
MAX235/236/239/240/241
250
Normal operation
0.5
10
s
VSHDN = 0V
(MAX223)
440
Propagation Delay
RS-232 IN to
TTL/CMOS OUT,
CL = 150pF
640
3
5.1
30
V/s
MAX231/MAX232/MAX233, TA = +25°C, VCC = +5V,
RL = 3k
Ω to 7kΩ, CL = 50pF to 2500pF, measured from
+3V to -3V or -3V to +3V
430
Transmitter Output Resistance
VCC = V+ = V- = 0V, VOUT = ±2V
300
Ω
Transmitter Output Short-Circuit
Current
±10
mA
tPHLS
tPLHS
Transition Region Slew Rate
MAX223/MAX230/MAX234–241, TA = +25°C, VCC = +5V,
RL = 3k
Ω to 7kΩ CL = 50pF to 2500pF, measured from
+3V to -3V or -3V to +3V
Note 5: All units are production tested at hot except for the MAX240, which is production tested at TA = +25°C. Specifications over
temperature are guaranteed by design.
6
Maxim Integrated
MAX220–MAX249
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