MAX221
+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)
TSSOP (derated 6.7mW/°C above +70°C) ................533mW
SSOP (derated 7.1mW/°C above +70°C) ..................571mW
Operating Temperature Range
MAX221C_ _ .....................................................0°C to +70°C
MAX221E_ _ ..................................................-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
I
IN
Input Leakage Current
TIN, EN, FORCEOFF
V
2.4
V
IH
Input Threshold High
DC CHARACTERISTICS
LOGIC INPUTS
AUTOSHUTDOWN
