參數(shù)資料
型號(hào)： MAX221E
廠商： Maxim Integrated Products, Inc.
英文描述： Quadruple Bus Buffer Gates With 3-State Outputs 14-VQFN -40 to 85
中文描述： ±15kV ESD保護(hù)、+5V、1µA、單路RS-232收發(fā)器，帶有AutoShutdown
文件頁(yè)數(shù)： 1/12頁(yè)
文件大小： 177K
代理商： MAX221E
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
The MAX221E is a +5V powered, single transmit/
receive RS-232 and V.28 communications interface with
automatic shutdown/wake-up features and high data
rate capabilities.
The MAX221E features enhanced electrostatic discharge
(ESD) protection. Both the transmitter output and receiver
input are protected to ±15kV using the IEC 1000-4-2 Air-
Gap Discharge Method, to ±8kV using the IEC 1000-4-2
Contact Discharge Method, and to ±15kV using the
Human Body Model.
The MAX221E achieves a low 1μA supply current with
Maxim’s revolutionary AutoShutdown feature.
AutoShutdown saves power without changes to the
existing BIOS or operating system by entering low-
power shutdown mode when the RS-232 cable is dis-
connected or when the transmitter of the connected
peripheral is off. The MAX221E wakes up and drives the
INVALID
pin high when an active RS-232 cable is con-
nected, signaling the host that a peripheral is connected
to the communications port.
The MAX221E is available in a 16-pin SSOP package as
well as a 16-pin TSSOP that uses 50% less board space
than a 16-pin SO.
Applications
Maintenance/Diagnostic Ports
Industrial Systems
Telecommunications
Set-Top Boxes
Features
o
Single RS-232 Transceiver in a Small 16-Pin TSSOP
o
ESD Protection for RS-232 I/O Pins
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
o
Latchup Free
o
1μA Supply Current
o
AutoShutdown Saves Power without Changes
to BIOS
o
Guaranteed 250kbps Data Rate
M
±15kV ESD-Protected, +5V, 1μA, Single RS-232
Transceiver with AutoShutdown
________________________________________________________________ Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
EN
FORCEOFF
V
CC
GND
TOUT
FORCEON
TIN
INVALID
ROUT
TOP VIEW
MAX221E
TSSOP/SSOP
C1+
V+
C2-
C1-
C2+
V-
RIN
MAX221E
FORCEON
EN
12
1
ROUT
9
FORCEOFF
16
INVALID
10
GND
14
TIN
11
C2-
6
C2+
5
C1-
4
C1+
2
RIN 8
TOUT
13
V-
7
V+
3
V
CC
V
CC
C4
0.1
μ
F
C3
0.1
μ
F
15
C1
0.1
μ
F
C2
0.1
μ
F
C
BYPASS
0.1
μ
F
+5V
TO POWER-
MANAGEMENT
UNIT
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED.
5k
Typical Operating Circuit
19-1527; Rev 0; 8/99
PART
MAX221ECUE
MAX221ECAE
MAX221EEUE
MAX221EEAE
40°C to +85°C
40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
16 TSSOP
16 SSOP
16 TSSOP
16 SSOP
Pin Configuration
Ordering Information
AutoShutdown is a trademark of Maxim Integrated Products.
相關(guān)PDF資料
PDF描述
MAX221ECAE 16-Bit Buffers/Drivers With 3-State Outputs 48-TSSOP -40 to 85
MAX221ECUE 【15kV ESD-Protected, +5V, 1レA, Single RS-232 Transceiver with AutoShutdown
MAX221EEUE 16-Bit Buffers/Drivers With 3-State Outputs 48-TVSOP -40 to 85
MAX221EEAE 【15kV ESD-Protected, +5V, 1レA, Single RS-232 Transceiver with AutoShutdown
MAX221 Quadruple Bus Buffer Gates With 3-State Outputs 14-TSSOP -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX221EAE 功能描述:RS-232接口集成電路 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:
MAX221EAE+ 功能描述:RS-232接口集成電路 5V 1uA Single RS-232 Txr w/AutoShut 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:
MAX221EAE+T 功能描述:RS-232接口集成電路 5V 1uA Single RS-232 Txr w/AutoShut 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:
MAX221EAE-T 功能描述:RS-232接口集成電路 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:
MAX221ECAE 功能描述:RS-232接口集成電路 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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