UTCRCR02

CMOS IC

QW-R502-001,B

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNITS

Operating Voltage

2.5

4.0

5.0

V

Supply Current

*

3.0

mA

Input Current

For RDB and LDB pins

60

µA

Input Low Voltage

For RDB and LDB pins

0.5

V

Input High Voltage

For RDB and LDB pins

3.5

V

Output High Voltage

µA

3.5

V

Output High Current

-1.5

mA

Output Low Voltage

0.5

V

Output Low Current

1.0

mA

Note*:Output unlosded; 2.2MΩfeedback resistors for the two reversing amplifiers; 200KΩ external resistor for the

on-chip oscillator.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNITS

Oscillator Frequency*

Fosc

102

128

154

KHz

SI Pin Vpp Receive Sensitivity

Guaranteed Effective Decoding

300

mV

Cycle Time of Function Code

0.75

1

1.25

ms

Cycle Time of Start Code

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%

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