DL927
DL927 is 4-DIGIT COUNTDOWN/UP TIMER manufactured by JinFengDa.
深圳市晶峰达电子科技有限公司
.jfd-ic.
DL927 4-DIGIT COUNTDOWN/UP TIMER
1. General Descriptions
DL927 is an UP/DOWN timer IC. It can directly drive a standard 4 digit 1/4 duty cycle
LCD. Maximum countdown time is 59:59 or 99:59. Count up cycle time is 60 or 100 minutes by bonding option. Also bonding option is for alarm time 32 or 64 seconds, 2kHz, and up/down or just down function. Feasible input options and universal functions give this chip many uses such as parking alarm timer, pillbox timer, kitchen timer, etc.
2. Features
- Special alarm trigger output for switch control or for driving another melody IC
- Internal voltage doubler
- 32,768Hz quartz crystal time base
- Single 1.5V...
