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MAX221EEUE

Part # MAX221EEUE
Description Single Transmitter/Receiver RS-232 16-Pin TSSOP - Bulk
Category IC
Availability In Stock
Qty 16
Qty Price
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14 + $5.47344
Manufacturer Available Qty
MAXIM
Date Code: 0437
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Date Code: 0514
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

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
Single RS-232 Transceiver in a Small 16-Pin TSSOP
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
Latchup Free
1µA Supply Current
AutoShutdown Saves Power without Changes
to BIOS
Guaranteed 250kbps Data Rate
MAX221E
±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
ROUT9
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
0.1µF
C3
0.1µF
15
C1
0.1µF
C2
0.1µF
C
BYPASS
0.1µF
+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 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
Pin Configuration
Ordering Information
AutoShutdown is a trademark of Maxim Integrated Products.
MAX221EEAE 40°C to +85°C 16 SSOP
MAX221E
±15kV ESD-Protected, +5V, 1µA, Single RS-232
Transceiver with AutoShutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V ±10%, C1–C4 = 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
..........................................................................-0.3V to +6V
V+ ...............................................................(V
CC
- 0.3V) to +14V
V- ...........................................................................-14V to +0.3V
Input Voltages
TIN............................................................-0.3V to (V+ + 0.3V)
RIN...................................................................................±30V
FORCEON, FORCEOFF, EN ..................-0.3V to (V
CC
+ 0.3V)
Output Voltages
TOUT ................................................(V- - 0.3V) to (V+ + 0.3V)
ROUT, INVALID ......................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration, TOUT .....................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TSSOP (derated 6.7mW/°C above +70°C) .......533mW
16-Pin SSOP (derated 7.1mW/°C above +70°C) .........571mW
Operating Temperature Range
MAX221EC_ _. ....................................................0°C to +70°C
MAX221EE_ _ ..................................................-40°C to +85°C
Maximum Junction Temperature .................................... +150°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
Figure 3
Figure 3
No load, T
A
= +25°C
Figure 3
I
SOURCE
= 1.0mA
I
SINK
= 1.6mA
CONDITIONS
I
CC
= 1µA, Figure 3
ROUT; I
SINK
= 3.2mA
Figure 3
TIN, EN, FORCEOFF, FORCEON
T
A
= +25°C, Figure 1
EN = V
CC
, 0 ROUT V
CC
TIN = 0 to V
CC
ROUT; I
SOURCE
= 1.0mA
µs30t
INVL
Receiver Positive or Negative
Threshold to INVALID Low
µs1t
INVH
Receiver Positive or Negative
Threshold to INVALID High
µs250t
WU
Receiver Threshold to
Transmitter Enabled
VV
CC
- 0.6
INVALID Output Voltage High
V0.4
INVALID Output Voltage Low
V
-0.3 0.3
Receiver Input Threshold,
Transmitter Disabled
-2.7
Positive threshold
V
2.7
Receiver Input Threshold,
Transmitter Enabled
µA
±0.05 ±10
Negative threshold
Output Leakage Current
V
3.5
V
OH
Output Voltage High
mA
510
I
CC
V
CC
Supply Current
UNITSMIN TYP MAXSYMBOLPARAMETER
V
0.4
V
OL
Output Voltage Low
V
0.8
V
IL
Input Threshold Low
µA
110
I
SHDN
Shutdown Supply Current
µA
110
I
AS
AutoShutdown Supply Current
µA
±1
Input Leakage Current
EN, FORCEOFF, TIN
V
2.4
V
IH
Input Threshold High
DC CHARACTERISTICS
LOGIC INPUTS
AUTOSHUTDOWN
MAX221E
±15kV ESD-Protected, +5V, 1µA, Single RS-232
Transceiver with AutoShutdown
_______________________________________________________________________________________ 3
TIMING CHARACTERISTICS
(V
CC
= +5V ±10%, C1–C4 = 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±10%, C1–C4 = 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1: Transmitter skew is measured at the transmitter zero crosspoints.
R
L
= 3kto 7k, C
L
= 50pF to 1000pF,
V
CC
= 4.5V
CONDITIONS
kbps
250
Maximum Data Rate
UNITSMIN TYP MAXSYMBOLPARAMETER
T
A
= +25°C, V
CC
= 5V, R
L
= 3kto 7k,
C
L
= 500pF to 1000pF, measured from
-3V to +3V or +3V to -3V
(Note 1)
Normal operation
Normal operation
C
L
= 150pF
V/µs3630Transition-Region Slew Rate
ns
50
|t
PHL
t
PLH
|Receiver Skew
ns
200
|t
PHL
t
PLH
|Transmitter Skew
ns
200
Receiver Output Disable Time
ns
300
Receiver Output Enable Time
ms
0.15
t
PHL,
t
PLH
Receiver Propagation Delay
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
V
CC
= V+ = V- = 0, V
OUT
= ±2V
Driver loaded with 3kto ground
T
A
= +25°C, V
CC
= 5V
V
CC
= 5V, no hysteresis in shutdown
T
A
= +25°C, V
CC
= 5V
T
A
= +25°C, V
CC
= 5V
mA±10 ±60Output Short-Circuit Current
300Output Resistance
V±5 ±9Output Voltage Swing
k357Input Resistance
V0.5Input Hysteresis
V1.7 2.4Input Threshold High
V0.8 1.2Input Threshold Low
V-25 25Input Voltage Range
IEC 1000-4-2 Air-Gap Discharge
kV
±15
RIN, TOUT IEC 1000-4-2 Contact Discharge ±8
Human Body Model ±15
RECEIVER INPUT
TRANSMITTER OUTPUT
ESD PROTECTION
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