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鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� MAX241ECAI
寤犲晢锛� Maxim Integrated Products
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 38/38闋�(y猫)
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鎻忚堪锛� IC TX W/RCVR RS232 5V 28-SSOP
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 46
椤炲瀷锛� 鏀剁櫦(f膩)鍣�
椹�(q奴)鍕�(d貌ng)鍣�/鎺ユ敹鍣ㄦ暩(sh霉)锛� 4/5
瑕�(gu墨)绋嬶細 RS232
闆绘簮闆诲锛� 4.5 V ~ 5.5 V
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 28-SSOP锛�0.209"锛�5.30mm 瀵級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 28-SSOP
鍖呰锛� 绠′欢
+5V-Powered, Multichannel RS-232
Drivers/Receivers
Supply Voltage Range
4.75
5.25
V
Transmitter Enable Time
MAX225
10
20
tET
No load
MAX244鈥揗AX249
11
30
510
30
MAX225
40
VCC Supply Current
(Normal Operation)
3k
惟 loads on
all outputs
MAX244鈥揗AX249
57
mA
Transition Slew Rate
825
CL = 50pF to 2500pF, RL = 3k
惟 to 7k惟, VCC = +5V,
TA = +25掳C, measured from +3V to -3V or -3V to +3V
TA = TMIN to TMAX
CONDITIONS
50
V/s
MAX246鈥揗AX249
(excludes charge-pump startup)
Shutdown Supply Current
A
5
tPHLT, Figure 1
1.3
3.5
s
tPLHT, Figure 1
1.5
3.5
Transmitter Disable Time
Transmitter Propagation Delay
TLL to RS-232 (Normal Operation)
s
tDT, Figure 4
100
ns
Transmitter + to - Propagation
Delay Difference (Normal Operation)
tPHLT - tPLHT
UNITS
MIN
TYP
MAX
350
PARAMETER
ns
Receiver + to - Propagation
Delay Difference (Normal Operation)
tPHLR - tPLHR
350
ns
4.5
5.5
MAX244鈥揗AX249
MAX225
Leakage current
卤1
Logic-low voltage
1.4
0.8
Control Input
Logic-high voltage
2.4
1.4
V
A
TA = +25掳C
tPHLR, Figure 2
0.6
1.5
tPLHR, Figure 2
0.6
1.5
Receiver Propagation Delay
TLL to RS-232 (Normal Operation)
s
tPHLS, Figure 2
0.6
10
tPLHS, Figure 2
3.0
10
Receiver Propagation Delay
TLL to RS-232 (Low-Power Mode)
s
Receiver-Output Enable Time
tER, Figure 3
100
500
ns
Receiver-Output Disable Time
tDR, Figure 3
100
500
ns
MAX225/MAX245鈥揗AX249
(includes charge-pump startup)
10
ms
POWER SUPPLY AND CONTROL LOGIC
AC CHARACTERISTICS
Note 7: All units production tested at hot. Specifications over temperature are guaranteed by design.
Note 8: The 300
惟 minimum specification complies with EIA/TIA-232E, but the actual resistance when in shutdown mode or VCC =
0V is 10M
惟 as is implied by the leakage specification.
ELECTRICAL CHARACTERISTICS鈥擬AX225/MAX244鈥揗AX249 (continued)
(MAX225, VCC = +5.0V 卤5%; MAX244鈥揗AX249, VCC = +5.0V 卤10%, external capacitors C1鈥揅4 = 1F; TA = TMIN to TMAX; unless
otherwise noted.) (Note 7)
Maxim Integrated
9
MAX220鈥揗AX249
鐩搁棞(gu膩n)PDF璩囨枡
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鐩搁棞(gu膩n)浠ｇ悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
MAX241ECAI+ 鍔熻兘鎻忚堪:RS-232鎺ュ彛闆嗘垚闆昏矾 15kV ESD-Protected 5V RS232 Transceiver RoHS:鍚� 鍒堕€犲晢:Exar 鏁�(sh霉)鎿�(j霉)閫熺巼:52 Mbps 宸ヤ綔闆绘簮闆诲:5 V 闆绘簮闆绘祦:300 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:LQFP-100 灏佽:
MAX241ECAI+T 鍔熻兘鎻忚堪:RS-232鎺ュ彛闆嗘垚闆昏矾 15kV ESD-Protected 5V RS232 Transceiver RoHS:鍚� 鍒堕€犲晢:Exar 鏁�(sh霉)鎿�(j霉)閫熺巼:52 Mbps 宸ヤ綔闆绘簮闆诲:5 V 闆绘簮闆绘祦:300 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:LQFP-100 灏佽:
MAX241ECAI-T 鍔熻兘鎻忚堪:RS-232鎺ュ彛闆嗘垚闆昏矾 RoHS:鍚� 鍒堕€犲晢:Exar 鏁�(sh霉)鎿�(j霉)閫熺巼:52 Mbps 宸ヤ綔闆绘簮闆诲:5 V 闆绘簮闆绘祦:300 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:LQFP-100 灏佽:
MAX241ECWI 鍔熻兘鎻忚堪:RS-232鎺ュ彛闆嗘垚闆昏矾 RoHS:鍚� 鍒堕€犲晢:Exar 鏁�(sh霉)鎿�(j霉)閫熺巼:52 Mbps 宸ヤ綔闆绘簮闆诲:5 V 闆绘簮闆绘祦:300 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:LQFP-100 灏佽:
MAX241ECWI+ 鍔熻兘鎻忚堪:RS-232鎺ュ彛闆嗘垚闆昏矾 15kV ESD-Protected 5V RS232 Transceiver RoHS:鍚� 鍒堕€犲晢:Exar 鏁�(sh霉)鎿�(j霉)閫熺巼:52 Mbps 宸ヤ綔闆绘簮闆诲:5 V 闆绘簮闆绘祦:300 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰�(f膿ng)鏍�:SMD/SMT 灏佽 / 绠遍珨:LQFP-100 灏佽:
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