MAX3227E LINE DRIVER/RECEIVER Datasheet

MAX3227E Datasheet, PDF, Equivalent


Part Number

MAX3227E

Description

3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER

Manufacture

etcTI

Total Page 15 Pages
Datasheet
Download MAX3227E Datasheet


MAX3227E
www.ti.com
MAX3227E
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
SLLS715A – FEBRUARY 2006 – REVISED JUNE 2007
FEATURES
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 at Least 1 Mbit/s
Low Standby Current . . . 1 μA Typ
External Capacitors . . . 4 × 0.1 μF
Accepts 5-V Logic Input With 3.3-V Supply
Designed to Be Interchangeable With Maxim™
MAX3227E
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection for RS-232 I/O Pins
±15 kV – Human-Body Model
±8 kV – IEC61000-4-2, Contact Discharge
±15 kV – IEC61000-4-2, Air-Gap Discharge
Auto-Powerdown Plus Feature Automatically
Disables Drivers for Power Savings
Packaged in Plastic Shrink Small-Outline
Package
APPLICATIONS
Battery-Powered, Hand-Held, and Portable
Equipment
PDAs and Palmtop PCs
Notebooks, Sub-Notebooks, and Laptops
Digital Cameras
Mobile Phones and Wireless Devices
DB PACKAGE
(TOP VIEW)
READY
C1+
V+
C1−
C2+
C2−
V−
RIN
1
2
3
4
5
6
7
8
16 FORCEOFF
15 VCC
14 GND
13 DOUT
12 FORCEON
11 DIN
10 INVALID
9 ROUT
DESCRIPTION/ORDERING INFORMATION
The MAX3227E consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC
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 1 Mbit/s in normal operating mode and a maximum
of 30-V/μs driver output slew rate. This device also features a logic-level output (READY) that asserts when the
charge pump is regulating and the device is ready to begin transmitting.
The MAX3227E achieves a 1-μA supply current using the auto-powerdown plus feature. This device
automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the
connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at
any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating
system.
The MAX3227EC is characterized for operation from 0°C to 70°C. The MAX3227EI is characterized for
operation from –40°C to 85°C.
TA
0°C to 70°C
–40°C to 85°C
ORDERING INFORMATION
PACKAGE (1) (2)
ORDERABLE PART NUMBER
SSOP – DB
Tube of 80
Reel of 2000
MAX3227ECDB
MAX3227ECDBR
SSOP – DB
Tube of 80
Reel of 2000
MAX3227EIDB
MAX3227EIDBR
TOP-SIDE MARKING
MP227EC
MP227EI
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
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.
All trademarks are the property of their respective owners.
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 © 2006–2007, Texas Instruments Incorporated

MAX3227E
MAX3227E
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
SLLS715A – FEBRUARY 2006 – REVISED JUNE 2007
FUNCTION TABLE(1)
www.ti.com
FORCEON
H
H
L
L
L
L
X
X
INVALID
INVALID
INPUT CONDITIONS
FORCEOFF
RECEIVER
OR
DRIVER
EDGE
WITHIN
30 s
H NO
H NO
H YES
H YES
H NO
H NO
LX
LX
INVALID
INVALID
X
X
OUTPUT STATES
VALID
RS-232
LEVEL
PRESENT
AT
RECEIVER
DRIVER
RECEIVER
INVALID
Auto-Powerdown Plus Conditions
NO
Active
Active
L
YES
Active
Active
H
NO
Active
Active
L
YES
Active
Active
H
NO Z Active L
YES
Z Active H
NO Z Active
YES
Z Active
Auto-Powerdown Conditions
L
H
NO Z Active L
YES
Active
Active
H
READY
OPERATING MODE
H
Normal operation,
auto-powerdown plus disabled
H
Normal operation,
auto-powerdown plus disabled
H
Normal operation,
auto-powerdown plus enabled
H
Normal operation,
auto-powerdown plus enabled
L
Powerdown,
auto-powerdown plus enabled
L
Powerdown,
auto-powerdown plus enabled
L Manual powerdown
L Manual powerdown
L
Powerdown,
auto-powerdown enabled
H
Normal operation,
auto-powerdown enabled
(1) H = high level, L = low level, X = irrelevant, Z = high impedance
2 Submit Documentation Feedback


Features www.ti.com MAX3227E 3-V TO 5.5-V SINGLE -CHANNEL RS-232 LINE DRIVER/RECEIVER WI TH ±15-kV IEC ESD PROTECTION SLLS715A – FEBRUARY 2006 – REVISED JUNE 2007 FEATURES • Meets or Exceeds the Req uirements of TIA/EIA-232-F and ITU v.28 Standards • Operates With 3-V to 5.5 -V VCC Supply • Operates at Least 1 M bit/s • Low Standby Current . . . 1 A Typ • External Capacitors . . . 4 × 0.1 μF • Accepts 5-V Logic Input With 3.3-V Supply • Designed to Be In terchangeable With Maxim™ MAX3227E Latch-Up Performance Exceeds 100 mA P er JESD 78, Class II • ESD Protection for RS-232 I/O Pins – ±15 kV – Hu man-Body Model – ±8 kV – IEC61000- 4-2, Contact Discharge – ±15 kV – IEC61000-4-2, Air-Gap Discharge • Aut o-Powerdown Plus Feature Automatically Disables Drivers for Power Savings • Packaged in Plastic Shrink Small-Outlin e Package APPLICATIONS • Battery-Pow ered, Hand-Held, and Portable Equipment • PDAs and Palmtop PCs • Notebooks, Sub-Notebooks, and Laptops • Digital Cameras • Mobile Phones and Wireless D.
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