Rato
Description :
RT1249
RT1249/RT11250 serials are infra-red(IR) remote control receiver utilizing CMOS
technology, it can be used with RT1248. The RT1249 series are packaged in 16
pins(RT1249) and 24 pins(RT1250) DIP. This series are capable of controlling
several functions, such as non-inverse/inverse select IR signal input format, and
independent/dependent toggle signal output , etc.
Features :
Operating Voltage錛?.2鈭?.0V.
Pin Out :
Low power dissipation.
High noise immunity.
A oscillator can be constructed by connecting
a RC circuit.
Three kinds of output format are single-shot ,
continuous and toggle signal.
Able to output parallels multiple keying signals
from the transmitter.
Absolute Maximum Rating
Symbol
V
DD
V
I/O
P
D
T
OP
T
EST
Parameter
Supply Voltage
Input/Output Voltage
Power Dissipation
OperatingTemperature
Storage Temperature
Conditions
(Temp=25鈩?
Rating
5.5
-0.3 to V
DD
+0.3
200
-20 ~+70
-40 ~+125
Unit
V
V
mW
鈩?/div>
鈩?/div>
Electrical Characteristics
Symbol
V
DD
I
DD
f
OSC
I
OH
I
OL
Parameter
(Unless otherwise specified, V
DD
= 5V and Temp=25
鈩?/div>
)
Conditions
All Function Operations
Key on without Load
V
DD
=4.5鈭?.5V
V
O
=4V
V
O
=1V
Min.
2.2
-
22
-
1.0
Typ. Max. Unit
-
-
33
-
-
5.0
1.0
54
-1.0
-
V
mA
KHz
mA
mA
Operating Voltage
Operating Current
Oscillation Frequency
Output source current
Output sink current
1
1
