MAX3237E LINE DRIVER/RECEIVER Datasheet

MAX3237E Datasheet, PDF, Equivalent


Part Number

MAX3237E

Description

3-V TO 5.5-V MULTICHANNEL RS-232 1-MBit/s LINE DRIVER/RECEIVER

Manufacture

etcTI

Total Page 20 Pages
Datasheet
Download MAX3237E Datasheet


MAX3237E
MAX3237E
www.ti.com
SLLS709B – MAY 2006 – REVISED JANUARY 2010
3-V TO 5.5-V MULTICHANNEL RS-232
1-MBit/s LINE DRIVER/RECEIVER
Check for Samples: MAX3237E
FEATURES
1
• Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
• Operates With 3-V to 5.5-V VCC Supply
• Operates From 250 kbits/s to 1 Mbit/s
• Low Standby Current . . . 1 mA Typical
• External Capacitors . . . 4 × 0.1 mF
• Accepts 5-V Logic Input With 3.3-V Supply
• Designed to Be Interchangeable With Maxim
MAX3237E
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
DB, DW, OR PW PACKAGE
(TOP VIEW)
• ESD Protection for RS-232 I/O Pins
– ±15 kV – Human-Body Model (HBM)
– ±8 kV – IEC61000-4-2, Contact Discharge
– ±15 kV – IEC61000-4-2, Air-Gap Discharge
APPLICATIONS
• Battery-Powered, Hand-Held, and Portable
Equipment
• PDAs and Palmtop PCs
• Notebooks, Sub-Notebooks, and Laptops
• Digital Cameras
• Mobile Phones and Wireless Devices
QFN PACKAGE
(TOP VIEW)
C2 +
GND
C2−
V−
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
DOUT5
EN
SHDN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 C1+
27 V+
26 VCC
25 C1−
24 DIN1
23 DIN2
22 DIN3
21 ROUT1
20 ROUT2
19 DIN4
18 ROUT3
17 DIN5
16 ROUT1B
15 MBAUD
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
NC
32 31 30 29 28 27 26 25
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 10 11 12 13 14 15 16
C1–
DIN1
IN2
DIN3
ROUT1
ROUT2
DIN4
ROUT3
DESCRIPTION
The MAX3237E consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV
ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of
TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the
serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to
5.5-V supply. This device operates at data signaling rates of 250 kbit/s in normal operating mode
(MBAUD = GND) and 1Mbit/s when MBAUD = VCC. The driver output slew rate is a maximum of 30 V/ms.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2010, Texas Instruments Incorporated

MAX3237E
MAX3237E
SLLS709B – MAY 2006 – REVISED JANUARY 2010
www.ti.com
The MAX3237E transmitters are disabled and the outputs are forced into high-impedance state when the device
is in shutdown mode (SHDN = GND) and the supply current falls to less than 1 mA. Also, during shutdown, the
onboard charge pump is disabled; V+ is lowered to VCC, and V– is raised toward GND. Receiver outputs also
can be placed in the high-impedance state by setting enable (EN) high. ROUT1B remains active all the time,
regardless of the EN and SHDN condition.
The MAX3237EC is characterized for operation from 0°C to 70°C. The MAX3237EI is characterized for operation
from –40°C to 85°C.
AVAILABLE OPTIONS(1)
TA PACKAGED DEVICES(2)
MAX3237ECDBR
0°C to 70°C
MAX3237ECPWR
MAX3237ECRHBR (QFN package)
MAX3237ECDWR
MAX3237EIDBR
–40°C to 85°C
MAX3237EIPWR
MAX3237EIRHBR (QFN package)
MAX3237EIDWR
(1) For the most current package and ordering information, see the
Package Option Addendum at the end of this document, or see the
TI web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at
www.ti.com/packaging.
Table 1. FUNCTION TABLE
INPUTS
SHDN
0
0
1
1
EN
0
1
0
1
DOUT
Z (1)
Z (1)
Active
Active
OUTPUTS
ROUT
Active
Z (1)
Active
Z (1)
ROUT1B
Active
Active
Active
Active
(1) Z = high impedance (off)
2 Submit Documentation Feedback
Product Folder Link(s): MAX3237E
Copyright © 2006–2010, Texas Instruments Incorporated


Features MAX3237E www.ti.com SLLS709B – MAY 2 006 – REVISED JANUARY 2010 3-V TO 5.5 -V MULTICHANNEL RS-232 1-MBit/s LINE DR IVER/RECEIVER Check for Samples: MAX323 7E FEATURES 1 • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards • Operates With 3-V to 5.5-V VCC Supply • Operates From 250 kbits/s to 1 Mbit/s • Low Standby Cu rrent . . . 1 mA Typical • External C apacitors . . . 4 × 0.1 mF • Accepts 5-V Logic Input With 3.3-V Supply • Designed to Be Interchangeable With Max im MAX3237E • Latch-Up Performance Ex ceeds 100 mA Per JESD 78, Class II DB, DW, OR PW PACKAGE (TOP VIEW) • ESD P rotection for RS-232 I/O Pins – ±15 kV – Human-Body Model (HBM) – ±8 k V – IEC61000-4-2, Contact Discharge ±15 kV – IEC61000-4-2, Air-Gap Di scharge APPLICATIONS • Battery-Powere d, Hand-Held, and Portable Equipment PDAs and Palmtop PCs • Notebooks, S ub-Notebooks, and Laptops • Digital C ameras • Mobile Phones and Wireless Devices QFN PACKAGE (TOP VIEW) V− C2– GND C2+ C1+ V+ VCC NC C2 + GND C2.
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