MAX3222, MAX3232, MAX3237, MAX3241 3.0V至5.5V、低功耗、1Mbps、真RS-232收发器，使用四只0.1µF外部电容

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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 charge-pump 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.

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 V_CC completely removed.

The MAX3222, MAX3237, and MAX3241 are available in space-saving TSSOP and SSOP packages.

关键特性

应用/使用

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

	电池供电设备
	手持式装置
	高速调制解调器
	笔记本电脑、亚笔记本电脑与掌上电脑
	外设
	打印机

Key Specifications: RS-232 Line Driver/Receivers
Part Number	Supply Voltage (V)	Number of Tx	Number of Rx	Data Rate (kbps)	Typ. I_CC Current (mA)	Internal Charge Pump	Number of Ext. Caps	Nom. Cap. Value (µF)	Number of Rx Active in Shutdown	Package	Price^**
MAX3222	3.3 5	2	2	120	0.3	Yes	4	0.1	2	PDIP/18 SOIC/18 SSOP/20 TSSOP/20	$1.25 @ 1k
MAX3232		2	2	120	0.3				-	PDIP/16 SOIC/16 SSOP/16 TSSOP/16	$1.69 @ 1k
MAX3237		5	3	1,000	0.5				3	SSOP/28	$3.29 @ 1k
MAX3241		3	5	120	0.3				5	SOIC/28 SSOP/28 TSSOP/28	$3.11 @ 1k
See All RS-232 Line Driver/Receivers (155)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX242引脚排列(MAX3222)。

工业标准MAX232引脚排列(MAX3232)。

速率最高的1Mbps RS-232收发器(MAX3237)。

鼠标控制，关断时两个备用的接收器保持有效(MAX3241)。

*受美国专利#4,636,930、4,679,134、4,777,577、4,797,899、4,809,152、 4,897,774、4,999,761、5,649,210及其它正在申请的专利保护。