ST3243 ST Microelectronics, ST3243 Datasheet - Page 4

• Manufacturer Part Number: ST3243
• Description: RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
• Manufacturer: ST Microelectronics

ST3243
ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
AUTO-POWERDOWN ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
4/11
Symbol
Symbol
Symbol
I
V
ASHDN
I
I
V
V
1
1
1
V
SHDN
SHDN
V
V
V
V
V
t
t
t
THYS
I
RITD
RITE
WU
invh
invL
I
OL
IOH
TIH
IOL
TIL
OH
- C
- C
IL
OL
- C
4
4
4
= 0.1 F, V
= 0.1 F, V
= 0.1 F, V
Supply Current
Auto-powerdown
Shutdown Supply Current
Supply Current
Auto-powerdown Disabled
Input Logic Threshold Low
Input Logic Threshold High T-IN, FORCEON, FORCEOFF
Transmitter Input
Hysteresis
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
Receiver Input Threshold to
Transmitter Enabled
Receiver Input Threshold to
Transmitter Disabled
INVALID Output Voltage
LOW
INVALID Output Voltage
HIGH
Receiver Threshold to
Transmitter Enabled
Receiver Positive or
Negative Threshold to
INVALID HIGH
Receiver Positive or
Negative Threshold to
INVALID LOW
Parameter
Parameter
Parameter
CC
CC
CC
= 3V to 5.5V, T
= 3V to 5.5V, T
= 3V to 5.5V, T
A
A
A
= 25°C)
= 25°C)
= 25°C)
V
All R_IN open
V
All R_IN open
V
FORCEON = FORCEOFF = V
T-IN, FORCEON, FORCEOFF
V
V
T-IN, FORCEON, FORCEOFF
Receiver Disabled
I
I
Positive Threshold
Negative Threshold
1 A Supply Current
I
I
OUT
OUT
OUT
OUT
CC
CC
CC
CC
CC
A
A
A
= -40 to 85°C, unless otherwise specified.
= 3.3 or 5.0V
= 3.3 or 5.0V
= 3.3 or 5.0V
= -40 to 85°C, unless otherwise specified.
= 3.3V
= 5V
= -40 to 85°C, unless otherwise specified.
= 1.6mA
= -1mA
= 1.6mA
= -1mA
Test Conditions
Test Conditions
Test Conditions
FORCEOFF = V
FORCEOFF = GND
T
T
T
A
A
A
= 25°C
= 25°C
= 25°C
CC
No Load
CC
V
V
CC
CC
Min.
Min.
Min.
-0.3
2.4
2.7
2
-0.6 V
-0.6
Typ.
CC
Typ.
Typ.
250
0.3
0.5
30
0.01
0.05
1
1
1
-0.1
Max.
Max.
Max.
2.7
0.3
0.4
10
10
0.8
0.4
1
1.0
10
Unit
Unit
Unit
mA
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
s
s
s