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美信 RS232接口芯片 MAX3222-MAX3241手册
资料介绍
美信 RS232接口芯片 MAX3222-MAX3241 手册
General Description
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 normal operating mode and 1Mbps in
the MegaBaud™ operating mode.
The MAX3222/MAX3232 have 2 receivers and 2 drivers.
The MAX3222 and MAX3232 are pin, package, and functionally
compatible with the industry-standard MAX242
and MAX232, respectively.
The MAX3241 has 5 receivers and 3 drivers, while the
MAX3237 has 3 receivers and 5 drivers. 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 to be
monitored without forward biasing the protection diodes in
circuitry that may have VCC completely removed.
The MAX3222, MAX3232, and MAX3241 are available in
space-saving TSSOP and SSOP packages with operating
temperatures of either -40°C to +85°C or 0°C to 70°C.
Applications
●● Battery-Powered Equipment
●● Hand-Held Equipment
●● Peripherals
●● Datacom Equipment
Benefits and Features
●● Integrated Features Saves Board Space and
Simplifies Design
• Charge Pump Circuitry Eliminates the Need for a
Bipolar ±12V Supply
• Wide Single-Supply Operation From +3V to +5.5V
Supply
• Always-On Extra Outputs Enable Monitoring of
External Devices
●● Power Saving Extends Battery Life
• 1μA Supply Current in Shutdown Mode While
Receiver is Active (MAX3222, MAX3237, MAX3241)
Ordering Information continued at end of data sheet.
Typical Operating Circuits appear at end of data sheet. Pin Configurations continued at end of data sheet.
MegaBaud and UCSP are trademarks of Maxim Integrated Products, Inc.
*Covered by U.S. Patent numbers 4,636,930; 4,679,134; 4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; and other patents
pending.
19-0273; Rev 10; 5/19
+Denotes lead-free package.
PART TEMP RANGE PINPACKAGE
PKG
CODE
MAX3222CUP+ 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
Ordering Information
Pin
部分文件列表
文件名 | 大小 |
MAX3222-MAX3241.pdf | 2M |
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