
UTC RCR02
DC ELECTRICAL CHARACTERISTICS
(Over the operating rating,T
A
= -10
°
C~ +40
°
C,V
DD
=4.0V
±
10%)
PARAMETER
SYMBOL
TEST CONDITIONS
Operating Voltage
V
DD
Supply Current
I
DD
*
Input Current
I
IN
For RDB and LDB pins
Input Low Voltage
V
IL
For RDB and LDB pins
Input High Voltage
V
IH
For RDB and LDB pins
Output High Voltage
V
OH
I
OUT
=400
μ
A
Output High Current
I
OH
V
OUT=
1.4V
Output Low Voltage
V
OL
I
OUT
=1.0mA
Output Low Current
I
OL
V
OUT=
0.5V
Note*:Output unlosded; 2.2M
Ω
feedback resistors for the two reversing amplifiers; 200K
Ω
external resistor for the
on-chip oscillator.
AC ELECTRICAL CHARACTERISTICS
(Over the operating rating, T
A
= -10
°
C~ +40
°
C,V
DD
=4.0V
±
10%)
PARAMETER
SYMBOL
TEST CONDITIONS
T
A
=25
°
C,R=200K
Ω
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R502-001,B
MIN
2.5
3.5
3.5
-1.5
1.0
TYP
4.0
MAX
UNITS
5.0
3.0
60
0.5
0.5
V
mA
μ
A
V
V
V
mA
V
mA
MIN
TYP
MAX
UNITS
Oscillator Frequency*
Fosc
102
128
154
KHz
SI Pin Vpp Receive Sensitivity
V
SI
Guaranteed Effective Decoding
300
mV
Cycle Time of Function Code
T
FUN
F
OSC
=128KHz
0.75
1
1.25
ms
Cycle Time of Start Code
T
STA
F
OSC
=128KHz
1.5
2
2.5
ms
Note*:The relative error between the frequencies of the two on-chip oscillators in the RCT02 and RCR02 must be
less than
±
25%
BIT FORMAT FOR THE RECEIVED SIGNAL
(W1 is used for function codes,W2 for start codes)
W1
W1:1KHz 50% Duty Cycle Typical
W2
W2: 500Hz 75% Duty Cycle Typical
WORD FORMAT FOR RECEIVED SIGNAL
Start Code: 4 ' W2
Function Code: n ' W1
1 Word