MAX3228EBV

Maxim Integrated
Интерфейс RS-232 - [UCSP30]; TX: 2; RX: 2; Скорость: 250 кбит/с; Напряжение: 2.5...5.5 В; Т раб: -40...85 °C
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Технические характеристики

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Корпус UCSP30
Количество передатчиков
Количество приёмников
Максимальная скорость передачи данных
Напряжение питания
Рабочая температура
Примечания Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, CMOS, PBGA30
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19-0273; Rev 7; 1/07 3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors __Next Generation Device Features The MAX3222/MAX3232/MAX3237/MAX3241 transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The devices require only four small 0.1µF external chargepump capacitors. The MAX3222, MAX3232, and MAX3241 are guaranteed to run at data rates of 120kbps while maintaining RS-232 output levels. The MAX3237 is guaranteed to run at data rates of 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232 output levels. ♦ For Smaller Packaging: MAX3228E/MAX3229E: +2.5V to +5.5V RS-232 Transceivers in UCSP™ ♦ For Integrated ESD Protection: MAX3222E/MAX3232E/MAX3237E/MAX3241E/ MAX3246E: ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers ♦ For Low-Voltage or Data Cable Applications: MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins The MAX3222/MAX3232 have 2 receivers and 2 drivers. The MAX3222 features a 1µA shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1µA supply current. The MAX3222 and MAX3232 are pin, package, and functionally compatible with the industry-standard MAX242 and MAX232, respectively. The MAX3241 is a complete serial port (3 drivers/ 5 receivers) designed for notebook and subnotebook computers. The MAX3237 (5 drivers/3 receivers) is ideal for fast modem applications. Both these devices feature a shutdown mode in which all receivers can remain active while using only 1µA supply current. Receivers R1 (MAX3237/MAX3241) and R2 (MAX3241) have extra outputs in addition to their standard outputs. These extra outputs are always active, allowing external devices such as a modem to be monitored without forward biasing the protection diodes in circuitry that may have VCC completely removed. The MAX3222, MAX3237, and MAX3241 are available in space-saving TSSOP and SSOP packages. _______________Ordering Information PIN-PACKAGE PKG CODE 0°C to +70°C 20 TSSOP U20+2 MAX3222CAP+ 0°C to +70°C 20 SSOP A20+1 MAX3222CWN+ 0°C to +70°C 18 SO W18+1 MAX3222CPN+ 0°C to +70°C 18 Plastic Dip P18+5 PART TEMP RANGE MAX3222CUP+ +Denotes lead-free package. Ordering Information continued at end of data sheet. _________________Pin Configurations TOP VIEW + EN 1 ________________________Applications Notebook, Subnotebook, and Palmtop Computers High-Speed Modems Battery-Powered Equipment Hand-Held Equipment Peripherals Printers Typical Operating Circuits appear at end of data sheet. 18 SHDN 17 VCC C1+ 2 V+ 3 16 GND C1- 4 MAX3222 15 T1OUT C2+ 5 MAX3222 14 R1IN C2- 6 13 R1OUT V- 7 12 T1IN T2OUT 8 11 T2IN R2IN 9 10 R2OUT DIP/SO Pin Configurations continued at end of data sheet. MegaBaud and UCSP are trademarks of Maxim Integrated Products, Inc. * ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX3222/MAX3232/MAX3237/MAX3241* ________________General Description PDF
Документация на серию MAX3222 

MAX3222/32/37/41 DS

Дата модификации: 04.05.2010

Размер: 902.6 Кб

17 стр.

19-2140; Rev 1; 5/04 +2.5V to +5.5V RS-232 Transceivers in UCSP The MAX3228/MAX3229 offer a separate power-supply input for the logic interface, allowing configurable logic levels on the receiver outputs and transmitter inputs. Operating over a +1.65V to VCC range, VL provides the MAX3228/MAX3229 compatibility with multiple logic families. The MAX3229 contains one receiver and one transmitter. The MAX3228 contains two receivers and two transmitters. The MAX3228/MAX3229 are available in tiny chip-scale packaging and are specified across the extended industrial temperature range of -40°C to +85°C. Features ♦ 6 ✕ 5 Chip-Scale Packaging (UCSP) ♦ 1µA Low-Power AutoShutdown ♦ 250kbps Guaranteed Data Rate ♦ Meets EIA/TIA-232 Specifications Down to +3.1V ♦ RS-232 Compatible to +2.5V Allows Operation from Single Li+ Cell ♦ Small 0.1µF Capacitors ♦ Configurable Logic Levels Ordering Information PART MAX3228EBV -40°C to +85°C 6 x 5 UCSP* MAX3229EBV -40°C to +85°C 6 x 5 UCSP* *Requires solder temperature profile described in the Absolute Maximum Ratings section. *UCSP reliability is integrally linked to the user’s assembly methods, circuit board material, and environment. Refer to the UCSP Reliabilitly Notice in the UCSP Reliability section of this data sheet for more information. Typical Operating Circuits 2.5V TO 5.5V 1.65V TO 5.5V 0.1µF CBYPASS 0.1µF A1 C1 Applications Personal Digital Assistants C1 0.1µF Hand-Held Devices D1 A2 C2 0.1µF Cell Phone Data Lump Cables Set-Top Boxes A3 A5 VCC C1+ C1- VL V+ MAX3228 C2+ V- B1 C3 0.1µF A4 C4 0.1µF VL C2- T1OUT A6 T1IN TTL/CMOS INPUTS E3 RS-232 OUTPUTS VL T2OUT E4 B6 T2IN VL Cell Phones R1IN D6 R1OUT Typical Operating Circuits continued at end of data sheet. PINPACKAGE TEMP RANGE TTL/CMOS OUTPUTS VL E6 5kΩ RS-232 INPUTS R2IN E5 C6 R2OUT Pin Configurations appear at end of data sheet. 5kΩ VL UCSP is a trademark of Maxim Integrated Products, Inc. AutoShutdown is a trademark of Maxim Integrated Products, Inc. VL INVALID 20µA 20µA E2 FORCEOFF C5 B5 FORCEON TO POWERMANAGEMENT UNIT VL GND E1 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX3228/MAX3229 General Description The MAX3228/MAX3229 are +2.5V to +5.5V powered EIA/TIA-232 and V.28/V.24 communications interfaces with low power requirements, and high data-rate capabilities, in a chip-scale package (UCSP™). The MAX3228/MAX3229 achieve a 1µA supply current with Maxim’s AutoShutdown™ feature. They save power without changes to existing BIOS or operating systems by entering low-power shutdown mode when the RS-232 cable is disconnected, or when the transmitters of the connected peripherals are off. The transceivers have a proprietary low-dropout transmitter output stage, delivering RS-232 compliant performance from a +3.1V to +5.5V supply, and RS-232 compatible performance with a supply voltage as low as +2.5V. The dual charge pump requires only four small 0.1µF capacitors for operation from a +3.0V supply. Each device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. PDF
Документация на MAX3228EBV 

MAX3228/9 DS

Дата модификации: 30.06.2004

Размер: 804.5 Кб

14 стр.

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