參數(shù)資料
型號： MAX3228
廠商： Maxim Integrated Products, Inc.
英文描述： +2.5V to +5.5V RS-232 Transceivers in UCSP
中文描述： +2.5V至+5.5V、RS-232收發(fā)器，UCSP封裝
文件頁數(shù)： 1/14頁
文件大?。?/td> 238K
代理商： MAX3228
General Description
The MAX3228/MAX3229 are +2.5V to +5.5V powered
EIA/TIA-232 and V.28/V.24 communications interfaces
with low power requirements, and high data-rate capa-
bilities, in a chip-scale package (UCSP).
The MAX3228/MAX3229 achieve a 1μA supply current
with Maxim’s AutoShutdown feature. They save
power without changes to existing BIOS or operating
systems by entering low-power shutdown mode when
the RS-232 cable is disconnected, or when the trans-
mitters of the connected peripherals are off.
The transceivers have a proprietary low-dropout trans-
mitter output stage, delivering RS-232 compliant perfor-
mance from a +3.1V to +5.5V supply, and RS-232
compatible performance with a supply voltage as low
as +2.5V. The dual charge pump requires only four
small 0.1μF capacitors for operation from a +3.0V sup-
ply. Each device is guaranteed to run at data rates of
250kbps while maintaining RS-232 output levels.
The MAX3228/MAX3229 offer a separate power-supply
input for the logic interface, allowing configurable logic
levels on the receiver outputs and transmitter inputs.
Operating over a +1.65V to V
CC
range, V
L
provides the
MAX3228/MAX3229 compatibility with multiple logic
families.
The MAX3229 contains one receiver and one transmit-
ter. The MAX3228 contains two receivers and two
transmitters. The MAX3228/MAX3229 are available in
tiny chip-scale packaging and are specified across the
extended industrial temperature range of -40°C to
+85°C.
Applications
Personal Digital Assistants
Cell Phone Data Lump Cables
Set-Top Boxes
Hand-Held Devices
Cell Phones
Features
o
6
5 Chip-Scale Packaging (UCSP)
o
1μA Low-Power AutoShutdown
o
250kbps Guaranteed Data Rate
o
Meets EIA/TIA-232 Specifications Down to +3.1V
o
RS-232 Compatible to +2.5V Allows Operation
from Single Li+ Cell
o
Small 0.1μF Capacitors
o
Configurable Logic Levels
M
+2.5V to +5.5V RS-232 Transceivers
in UCSP
________________________________________________________________
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.
1
V
L
MAX3228
5k
T2OUT
T2IN
TTL/CMOS
INPUTS
C2-
T1IN
C2+
C1-
C1+
A1
A5
C1
D1
A2
A3
A6
B6
B1
A4
E3
E4
E2
20
μ
A
20
μ
A
E1
C5
B5
V-
V+
V
CC
2.5V TO 5.5V
C4
0.1
μ
F
C3
0.1
μ
F
C1
0.1
μ
F
C
BYPASS
C2
0.1
μ
F
0.1
μ
F
FORCEOFF
FORCEON
INVALID
T1OUT
GND
V
L
TO POWER-
MANAGEMENT
UNIT
RS-232
OUTPUTS
V
L
V
L
V
L
1.65V TO 5.5V
V
L
5k
R2IN
R2OUT
TOUTPUTS
D6
C6
E6
E5
R1IN
R1OUT
RS-232
V
L
V
L
0.1
μ
F
Typical Operating Circuits
19-2140; Rev 0; 8/01
*Requires solder temperature profile described in the Absolute
Maximum Ratings section.
*UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliabilitly Notice in the UCSP Reliability section of this
data sheet for more information.
Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
MAX3228
EBV
MAX3229
EBV
-40
°
C to +85
°
C
-40
°
C to +85
°
C
6
5 UCSP*
6
5 UCSP*
UCSP is a trademark of Maxim Integrated Products, Inc.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Typical Operating Circuits continued at end of data sheet.
Pin Configurations appear at end of data sheet.
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3228AEEWV+ 制造商:Maxim Integrated Products 功能描述:+2.5V TO +5.5V RS-232 TRANCEIVERS IN UCSP - Bulk
MAX3228AEEWV+T 功能描述:RS-232接口集成電路 +2.5V to +5.5V RS-232 Tranceivers in UCSP RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3228EBV 制造商:Maxim Integrated Products 功能描述:+2.5V TO +5.5V RS-232 TRANSCEIVERS - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:
MAX3228EBV+ 制造商:Maxim Integrated Products 功能描述:LINE TRANSMITTER/RCVR 2TR 2TX 2RX 30UCSP - Rail/Tube
MAX3228EBV+T 功能描述:RS-232接口集成電路 Integrated Circuits (ICs) RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
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