RT0301 Datasheet, PDF (1/4 Pages) Comchip Technology – CMOS Design for Door Bell application

Rato
RT0301/RT0302
The RT0301/RT0302 is a CMOS Design for Door Bell application
Features
Low Operator Voltage 3V ~ 4.5V
Auto Power down function
CMOS process
On-Chip RC oscillator
Low stand by current at 1 uA
8-Pin DIP or chip form available
Pin Diagram
TG ₁ 8 VCC
E1 2
E2 ₃
GND ₄
7 ^OSCI
6 ^OSCO
5 ^SOUT
RT0301/RT0302
Pin Description
Symbol
TG
E1
E2
GND
SOUT
OSCO
OSCI
Vcc
Pin Description
Trigger Single Input
"Ding" Freq
"Dong" Freq
Ground
Sound output
Frequency put
Frequency In
Power Source Input
Pin I / O
1
I
2
O
3
I
4
O
5
O
6
O
7
I
8
I
Electrical Characteristics
Vcc=3V , Temp.=25
Characteristics
Operating Voltage
Operating Current
Quiescent Current
Symbol Min. Typ. Max. Unit
Remarks
Vcc
- 3 4.5 V
Iop
- 0.1 0.5 mA No Load
Isb
- 1 5 uA
SOUT Driving Current Ioc
1 - - mA @VDS=1V
Oscillator Freq
Fop
- 50 - KHz External 30%, ROSC=430K
Operating Temp
Temp 0 25 70
P/N
RT0301
RT0302
TIMES
1
2
2000.04.11
Door Bell Generator
1