MAX3232CSE Maxim Integrated Products, MAX3232CSE Datasheet

IC TXRX RS232 1MBPS LP 16-SOIC

MAX3232CSE

Manufacturer Part Number
MAX3232CSE
Description
IC TXRX RS232 1MBPS LP 16-SOIC
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX3232CSE

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Case
SOP
Dc
00+
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
Q1175588
________________General Description
The MAX3222/MAX3232/MAX3237/MAX3241 trans-
ceivers have a proprietary low-dropout transmitter out-
put 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 cur-
rent. 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 out-
puts in addition to their standard outputs. These extra
outputs are always active, allowing external devices
such as a modem to be monitored without forward bias-
ing the protection diodes in circuitry that may have V
completely removed.
The MAX3222, MAX3237, and MAX3241 are available
in space-saving TSSOP and SSOP packages.
________________________Applications
Typical Operating Circuits appear at end of data sheet.
19-0273; Rev 7; 1/07
MegaBaud and UCSP are trademarks of Maxim Integrated Products, Inc.
*
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.
Transceivers Using Four 0.1µF External Capacitors
3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232
Notebook, Subnotebook, and Palmtop Computers
High-Speed Modems
Battery-Powered Equipment
Hand-Held Equipment
Peripherals
Printers
________________________________________________________________ Maxim Integrated Products
CC
♦ For Smaller Packaging:
♦ For Integrated ESD Protection:
♦ For Low-Voltage or Data Cable Applications:
_________________Pin Configurations
_______________Ordering Information
+
Ordering Information continued at end of data sheet.
__Next Generation Device Features
MAX3222CUP+
MAX3222CAP+
MAX3222CWN+
MAX3222CPN+
Denotes lead-free package.
MAX3228E/MAX3229E: +2.5V to +5.5V RS-232
Transceivers in UCSP™
MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246E: ±15kV ESD-Protected, Down to 10nA,
3.0V to 5.5V, Up to 1Mbps, True RS-232
Transceivers
MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,
2 Tx/2 Rx RS-232 Transceivers with ±15kV
ESD-Protected I/O and Logic Pins
PART
TOP VIEW
Pin Configurations continued at end of data sheet.
T2OUT
R2IN
TEMP RANGE
C1+
C2+
C1-
C2-
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
EN
V+
V-
1
2
3
4
5
6
7
8
9
+
MAX3222
MAX3222
DIP/SO
PIN-PACKAGE
20 TSSOP
20 SSOP
18 SO
18 Plastic Dip
18
17
16
15
14
13
12
11
10
SHDN
V
GND
T1OUT
R1IN
R1OUT
T2IN
R2OUT
T1IN
CC
W18+1
U20+2
A20+1
CODE
P18+5
PKG
1

Related parts for MAX3232CSE

MAX3232CSE Summary of contents

Page 1

... Battery-Powered Equipment Hand-Held Equipment Peripherals Printers Typical Operating Circuits appear 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. ...

Page 2

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors ABSOLUTE MAXIMUM RATINGS V ...........................................................................-0. (Note 1) ...............................................................-0.3V to +7V V- (Note 1) ................................................................+0. (Note 1)...................................................................+13V ...

Page 3

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors ELECTRICAL CHARACTERISTICS (continued +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2 PARAMETER Input Hysteresis Input Resistance T = +25°C A TRANSMITTER ...

Page 4

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors TIMING CHARACTERISTICS—MAX3237 (V = +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2 PARAMETER R = 3kΩ MBAUD = GND V = ...

Page 5

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors _____________________________Typical Operating Characteristics (continued +3.3V, 235kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ MAX3241 TRANSMITTER OUTPUT VOLTAGE vs. LOAD ...

Page 6

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors ______________________________________________________________Pin Description PIN MAX3222 MAX3232 MAX3237 DIP/SO SSOP 1 1 — ...

Page 7

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors _______________Detailed Description Dual Charge-Pump Voltage Converter The MAX3222/MAX3232/MAX3237/MAX3241’s internal power supply consists of a regulated dual charge pump that provides output voltages of +5.5V (doubling ...

Page 8

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors PROTECTION DIODE UART Tx GND SHDN = GND a) OLDER RS-232: POWERED-DOWN UART DRAWS CURRENT FROM ACTIVE RECEIVER OUTPUT IN ...

Page 9

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors Table 1. MAX3222/MAX3237/MAX3241 Shutdown and Enable Control Truth Table T_OUT R_OUT 0 0 ...

Page 10

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors Figure 4a. MAX3241 Transmitter Output Voltage vs. Load Current per Transmitter Figure 4b. Mouse Driver Test Circuit 10 ______________________________________________________________________________________ 6 5 ...

Page 11

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors V CC 0.1µ C1+ C1 C1- C2+ MAX3222 MAX3232 C2 C2- MAX3237 MAX3241 OUT R_ OUT * EN 5kΩ 0V ...

Page 12

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors Interconnection with 3V and 5V Logic The MAX3222/MAX3232/MAX3237/MAX3241 can directly interface with various 5V logic families, includ- ing ACT and HCT CMOS. See Table 3 ...

Page 13

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors _____________________________________Typical Operating Circuits (continued) 0.1µ C1+ 0.1µF 25 C1- 1 MAX3237 C2+ 0.1µF 3 C2- T1IN 24 T1 T2IN 23 T2 ...

Page 14

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors _____________________________________________Pin Configurations (continued C1 C1- 4 MAX3222 C2 T2OUT 8 R2IN 9 R2OUT 10 ...

Page 15

... MAX3222EWN+ -40°C to +85° MAX3222EPN+ -40°C to +85°C 18 Plastic Dip MAX3222C/D 0°C to +70°C Dice* MAX3232CUE+ 0°C to +70°C 16 TSSOP MAX3232CSE+ 0°C to +70°C 16 Narrow SO MAX3232CWE+ 0°C to +70°C 16 Wide SO MAX3232CPE+ 0°C to +70°C 16 Plastic DIP MAX3232EUE+ -40°C to +85°C 16 TSSOP MAX3232ESE+ -40° ...

Page 16

Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors ___________________Chip Topography MAX3222 SHDN V+ C1 C1- C2+ 0.127" (3.225mm) C2- V- T2IN T2OUT R2IN R2OUT 0.087" (2.209mm) TRANSISTOR COUNT: 339 SUBSTRATE CONNECTED ...

Page 17

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 17 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2007 Maxim Integrated Products Package Information PACKAGE OUTLINE, TSSOP 4 ...

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