MAX3222C/D MAXIM [Maxim Integrated Products], MAX3222C/D Datasheet

no-image

MAX3222C/D

Manufacturer Part Number
MAX3222C/D
Description
3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1uF External Capacitors
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.MAX3222CD.pdf (16 pages)
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.
Typical Operating Circuits appear at end of data sheet.
________________________Applications
19-0273; Rev 5; 3/99
MegaBaud is a trademark of Maxim Integrated Products.
*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.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
_______________General Description
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
____________________________Features
Ordering Information continued at end of data sheet.
_________________Pin Configurations
______________Ordering Information
MAX3222CUP
MAX3222CAP
MAX3222CWN
MAX3222CPN
Low Supply Current:
Guaranteed Data Rate:
1µA Low-Power Shutdown with Receivers Active
(MAX3222/MAX3237/MAX3241)
Flow-Through Pinout (MAX3237)
Meets EIA/TIA-232 Specifications Down to 3.0V
Guaranteed Mouse Driveability (MAX3241)
Pin Compatible with Industry-Standard MAX232
(MAX3232)
Pin Compatible with Industry-Standard MAX242
(MAX3222)
Guaranteed Slew Rate:
TOP VIEW
300µA (MAX3222/MAX3232/MAX3241)
500µA (MAX3237)
120kbps (MAX3222/MAX3232/MAX3241)
250kbps (MAX3237—Normal Operation)
1Mbps (MAX3237—MegaBaud Operation)
6V/µs (MAX3222/MAX3232/MAX3237/MAX3241)
24V/µs (MAX3237—MegaBaud Operation)
PART
Pin Configurations continued at end of data sheet.
T2OUT
R2IN
C1+
C2+
C2-
C1-
EN
V+
V-
1
2
3
4
5
6
7
9
8
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
MAX3222
DIP/SO
18
17
16
15
14
13
12
11
10
20 TSSOP
20 SSOP
18 SO
18 Plastic DIP
PIN-PACKAGE
R1IN
R1OUT
R2OUT
SHDN
V
GND
T1OUT
T1IN
T2IN
CC
1

Related parts for MAX3222C/D

Image
Part Number
Description
Manufacturer
Datasheet
Request R
5962-89877012C
Part Number:
5962-89877012C
Description:
LCC/M°/CIRCUITI INTEGRATI MAXIM
Manufacturer:
Maxim Integrated Products
Datasheet:
5962-89877012C.pdf (36 pages)
MAXPMBAE1#
Part Number:
MAXPMBAE1#
Description:
KIT/E/MAXIM ANALOG ESSENTIALS # COLLECTION OF PLUG-IN EVALUATION MODULES
Manufacturer:
Maxim Integrated Products
MAX3261CCJ
Part Number:
MAX3261CCJ
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3261CCJ.pdf (12 pages)
MAX3263CAG
Part Number:
MAX3263CAG
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX3263CAG.pdf (12 pages)
MAX8809AETL+
Part Number:
MAX8809AETL+
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX8809AETL.pdf (50 pages)
MAX1535CETJ+T
Part Number:
MAX1535CETJ+T
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
MAX1535CETJT.pdf (39 pages)
DS2741N+
Part Number:
DS2741N+
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
MAX13450EAUD+T
Part Number:
MAX13450EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX13451EAUD+T
Part Number:
MAX13451EAUD+T
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
MAX17497BATE+
Part Number:
MAX17497BATE+
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
MAX17502FATB+T
Part Number:
MAX17502FATB+T
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
MAX1978EVKIT
Part Number:
MAX1978EVKIT
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
MAX2606EUT+
Part Number:
MAX2606EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2608EUT+
Part Number:
MAX2608EUT+
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
MAX2831EVKIT+
Part Number:
MAX2831EVKIT+
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products

MAX3222C/D Summary of contents

Page 1

Rev 5; 3/99 3.0V to 5.5V, Low-Power 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors _______________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 ...

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 C1+ C1 C1- C2+ MAX3222 MAX3232 C2 C2- MAX3237 MAX3241 OUT * ...

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 C1+ 0 C1- 1 MAX3237 C2+ 0 C2- T1IN 24 T1 ...

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 SSOP/TSSOP ...

Page 15

... Transceivers Using Four 0.1µF External Capacitors PART TEMP. RANGE MAX3222EUP -40°C to +85°C MAX3222EAP -40°C to +85°C MAX3222EWN -40°C to +85°C MAX3222EPN -40°C to +85°C MAX3222C/D 0°C to +70°C MAX3232CUE 0°C to +70°C MAX3232CSE 0°C to +70°C MAX3232CWE 0°C to +70°C MAX3232CPE 0°C to +70°C MAX3232EUE -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 ...

Related keywords