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參數(shù)資料
| 型號(hào)： | MAX3238ECAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS232 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： | 46 |
| 類(lèi)型： | 線(xiàn)路收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 5/3 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類(lèi)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： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 1406 (CN2011-ZH PDF) |
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MAX3238E/MAX3248E
+3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers
with ±15kV ESD-Protected I/O and Logic Pins
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(VCC = +3.3V, 250kbps data rate, 0.1F capacitors, all transmitters loaded with 3k
, TA = +25°C, unless otherwise noted.)
______________________________________________________________Pin Description
Output of the Valid Signal Detector. A logic 1 indicates if a valid RS-232 level is present on
receiver inputs.
INVALID
15
Noninverting Complementary Receiver Output. Always active.
R1OUTB
16
TTL/CMOS Transmitter Inputs (T5IN–T1IN). This pin has an active positive feedback resis-
tor. Once driven to a valid logic level, the pin retains that level if left unconnected until
power is cycled.
T_IN
17, 19, 22, 23, 24
TTL/CMOS Receiver Outputs (R3OUT–R1OUT)
R_OUT
18, 20, 21
Negative Terminal of Voltage-Doubler Charge-Pump Capacitor
C1-
25
RS-232 Transmitter Outputs (T1OUT–T5OUT)
T_OUT
5, 6, 7, 10, 12
RS-232 Receiver Inputs (R1IN–R3IN)
R_IN
8, 9, 11
Force-On Input. Drive high to override AutoShutdown Plus, keeping transmitters and
receivers on (FORCEOFF must be high) (Table 1). This pin has an active positive feedback
resistor. Once driven to a valid logic level, the pin retains that level if left unconnected until
power is cycled.
FORCEON
13
Force-Off Input. Drive low to shut down transmitters, receivers (except R1OUTB), and on-
board supply. This overrides AutoShutdown Plus and FORCEON (Table 1). This pin has an
active positive feedback resistor. Once driven to a valid logic level, the pin retains that
level if left unconnected until power is cycled.
FORCEOFF
14
-5.5V Generated by the Charge Pump
V-
4
Negative Terminal of Inverting Charge-Pump Capacitor
C2-
3
PIN
Ground
GND
2
Positive Terminal of Inverting Charge-Pump Capacitor
C2+
1
FUNCTION
NAME
26
VCC
+3.0V to +5.5V Supply Voltage
27
V+
+5.5V Generated by the Charge Pump
28
C1+
Positive Terminal of Voltage-Doubler Charge-Pump Capacitor
-6
-2
-4
2
0
4
6
-3
-5
1
-1
3
5
2.0
3.0
3.5
2.5
4.0
4.5
5.0
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
MAX3238E
toc04
SUPPLY VOLTAGE (V)
TRANSMITTER
OUTPUT
VOLTAGE
(V)
VOUT-
VOUT+
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
+1000pF
0
20
10
30
40
50
2.0
3.0
3.5
2.5
4.0
4.5
5.0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX3238E
toc05
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(mA)
1 TRANSMITTER 250kbps
4 TRANSMITTERS 15.6kbps
ALL TRANSMITTERS LOADED
WITH 3k
+1000pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX3238ECAI+ | 功能描述:RS-232接口集成電路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3238ECAI+T | 功能描述:RS-232接口集成電路 3-5.5V 250kbps Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3238ECAI-T | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3238ECDB | 功能描述:RS-232接口集成電路 3 to 5V Multichannel RS-232 Line Drv/Rcvr RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3238ECDBG4 | 功能描述:RS-232接口集成電路 3-5.5V Multich RS- 232 Line Drvr/Rcvr RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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