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MAX232DR
+BOMIC TRANSCEIVER FULL 2/2 16SOIC
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #MAX232DR
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パッケージ SOIC (D)-16
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在庫状況1657
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Transceiver |
| Protocol | RS232 |
| NumberofDrivers/Receivers | 2/2 |
| Duplex | Full |
| ReceiverHysteresis | 500 mV |
| DataRate | 120Kbps |
| Voltage-Supply | 4.5V ~ 5.5V |
| OperatingTemperature | 0°C ~ 70°C |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
概要
Description
Key features of the MAX232DR include:
1. Dual Driver/Receiver: It includes two drivers (converting TTL to RS-232) and two receivers (converting RS-232 to TTL).
2. Voltage Levels: RS-232 outputs are typically ±12V, while TTL uses 0 to 5V, necessitating conversion.
3. Power Supply: Operates from a single 5V power supply, using on-chip charge pumps to generate necessary voltages for RS-232 communication.
4. Package Type: Available in surface-mount packaging, with "DR" indicating a SOIC (Small Outline Integrated Circuit) form factor.
5. Applications: Widely used in PCs, laptops, PDAs, and other devices requiring RS-232 connectivity.
The MAX232DR is valued for its versatility, ease of use, and reliable conversion capabilities in serial communication systems.
Equivalent
1. STMicroelectronics' ST3232CDR
2. Texas Instruments' SN75C3232
3. Analog Devices' ADM232A
4. NXP's SP232A
5. Intersil's ICL232
These provide similar functionality and are used in converting signal levels between TTL/CMOS logic and RS-232. Always check the datasheet to ensure compatibility with your specific application.
Features
Key features include:
- Two drivers and two receivers for full-duplex communication.
- Operates from a single 5V supply.
- Internal charge pump to generate RS-232 voltage levels.
- Low power consumption, typically 5mA.
- High data transmission rate, up to 120 kbps.
- ±30V input voltage range tolerance, protecting against voltage spikes.
- Slew rate limited to 30V/μs to minimize EMI.
- Available in a variety of packages, including SOIC (Small Outline Integrated Circuit) for space-constrained applications.
Overall, the MAX232DR offers reliable performance for interfacing TTL/CMOS logic levels with RS-232 compatible devices, often used in serial communication applications such as PCs, modems, and embedded systems.
Pinout
1. Pin 1 (C1+): Positive terminal for the charge pump capacitor.
2. Pin 2 (V+): Positive voltage generated by the charge pump.
3. Pin 3 (C1-): Negative terminal for the charge pump capacitor.
4. Pin 4 (C2+): Positive terminal for the second charge pump capacitor.
5. Pin 5 (C2-): Negative terminal for the second charge pump capacitor.
6. Pin 6 (V-): Negative voltage generated by the charge pump.
7. Pin 7 (T2OUT): Transmitter output 2.
8. Pin 8 (R2IN): Receiver input 2.
9. Pin 9 (R2OUT): Receiver output 2.
10. Pin 10 (T2IN): Transmitter input 2.
11. Pin 11 (T1IN): Transmitter input 1.
12. Pin 12 (R1OUT): Receiver output 1.
13. Pin 13 (R1IN): Receiver input 1.
14. Pin 14 (T1OUT): Transmitter output 1.
15. Pin 15 (GND): Ground.
16. Pin 16 (VCC): Power supply voltage.
The integrated charge pump generates the necessary voltage levels for RS-232 communication from a single 5V supply.