CDT3050V Datasheet, PDF (1/4 Pages) BOWIN ELECTRONIC CO. – 3-DIGIT DOWN TIMER IC

其朋半導體股份有限公司
Chip Design Technology
Inc.
89 年 10 月 24 日
CDT3050V P. 1
3-DIGIT DOWN TIMER IC
■DESCRIPTION
The CDT3050H is a low voltage 3 digits
LCD driver for advanced Count Down
Timer.
Minimal components are used.
With START/STOP and RECALL setting
functions.
LCD: 1/2 Duty, 1/2 Bias, 2 Commons
■FEATURES
CMOS Technology
Supply Voltage Range：1.2 ~ 1.8VDC
Low Standby Current < 5µA
With a Trigger Output Capability
Time Setting： Max: 999 Minutes
Min: 1 Minute
32768 Hz Crystal used
LCD displays Seconds until the last
minute
16 seconds, 4Hz (64 Sounds) BiBi
Alarm when time runs out
“ ” - Operating symbol
“S” - Seconds symbol
■APPLICATIONS
Count Down Timer
Electronic Timer
Setting Control Timer
■DEVICE TYPE
Type No.
CDT3050V
Package
Chip form
■DC ELECTRONICAL CHARACTERISTICS
Characteristics
Operation Voltage
Operation Current
BZ Driver Current
Crystal
LCD Display Freq
K0~K9 Input Current
Trigger Output Current
Symbol
VDD
Idd
Ibz
Ikey
Itrig
Min
Type
Max
Unit
1.2
1.5
1.8
V
-
-
2.0
µA
2.0
-
-
mA
-
32768
-
Hz
-
32
-
Hz
-
-
5
µA
1
-
-
mA
※ Above testing conditions are based on VDD=1.5V
CDT-3050V --- 1