参数资料
型号: MAX244EQH+TD
厂商: Maxim Integrated Products
文件页数: 23/38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)
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(VCC = +5V ±10%, C1–C4 = 0.1F MAX220, C1 = 0.047F, C2–C4 = 0.33F, TA = TMIN to TMAX unless otherwise noted.) (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
All except MAX220/MAX243, VCC = +5V, no
hysteresis in shutdown
0.2
0.5
1.0
MAX220
0.3
RS-232 Input Hysteresis
MAX243
1
V
3
5
7
RS-232 Input Resistance
TA = +25°C (MAX220)
3
5
7
k
IOUT = 3.2mA
0.2
0.4
TTL/CMOS Output Voltage Low
IOUT = 1.6mA (MAX220)
0.4
V
TTL/CMOS Output Voltage High
IOUT = -1.0mA
3.5
VCC - 0.2
V
Sourcing VOUT = VGND
-2
-10
TTL/CMOS Output Short-Circuit Current
Sinking VOUT = VCC
10
30
mA
TTL/CMOS Output Leakage Current
VSHDN = VCC or VEN = VCC (VSHDN = 0V for
MAX222), 0V
VOUT
VCC
±0.05
±10
μA
EN Input Threshold Low
MAX242
1.4
0.8
V
EN Input Threshold High
MAX242
2.0
1.4
V
Supply Voltage Range
4.5
5.5
V
MAX220
0.5
2
No load
MAX222/MAX232A/MAX233A/
MAX242/MAX243
4
10
MAX220
12
VCC Supply Current (VSHDN = VCC),
Figures 5, 6, 11, 19
3k
load
both inputs
MAX222/MAX232A/MAX233A/
MAX242/MAX243
15
mA
TA = +25°C
0.1
10
TA = 0°C to +70°C
2
50
TA = -40°C to +85°C
2
50
Shutdown Supply Current
MAX222/
MAX242
TA = -55°C to +125°C
35
100
μA
SHDN Input Leakage Current
MAX222/MAX242
±1
μA
SHDN Threshold Low
MAX222/MAX242
1.4
0.8
V
SHDN Threshold High
MAX222/MAX242
2.0
1.4
V
MAX222/MAX232A/
MAX233/MAX242/MAX243
6
12
30
Transition Slew Rate
CL = 50pF to 2500pF,
RL = 3k
to 7k ,
VCC = +5V, TA =
+25°C, measured
from +3V to -3V or
-3V to +3V
MAX220
1.5
3
30.0
V/μs
MAX222/MAX232A/
MAX233/MAX242/MAX243
1.3
3.5
tPHLT, Figure 1
MAX220
4
10
MAX222/MAX232A/
MAX233/MAX242/MAX243
1.5
3.5
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation)
tPLHT, Figure 1
MAX220
5
10
μs
Maxim Integrated
3
MAX220–MAX249
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