King Billion Electronics Co., Ltd.
HE89C21
駿 億 電 子 股 份 有 限 公 司
HE80000 SERIES
- Table of Contents -
1. General Description ___________________________________________________________________1
2. Features _____________________________________________________________________________2
3. Pin Description _______________________________________________________________________2
4. Pad Diagram _________________________________________________________________________4
5. Pad Coordinations ____________________________________________________________________4
6. LCD Power Supply____________________________________________________________________5
6.1.
LCDC Control register ______________________________________________________________6
7. LCD RAM Map ______________________________________________________________________6
8. Oscillators ___________________________________________________________________________7
9. General Purpose I/O___________________________________________________________________8
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
Timer1 ____________________________________________________________________________9
Timer2 ___________________________________________________________________________10
Watch Dog Timer __________________________________________________________________12
Low Voltage Reset _________________________________________________________________13
Dual-Tone Multiple Frequency Generator______________________________________________13
Absolute Maximum Rating __________________________________________________________14
Recommended Operating Conditions _________________________________________________15
AC/DC Characteristics _____________________________________________________________15
Application Circuit_________________________________________________________________16
Important Note____________________________________________________________________16
Updated Record ___________________________________________________________________16
1.General Description
HE89C21 is a member of 8-bit Micro-controller series developed by King Billion Electronics for telecom
applications. This chip has 4-COM x 32-SEG LCD driver with built-in regulator to provide stable visual
effect over the battery life, 16-bit general purpose I/O port, DTMF generator for the dialing tone
generation. It is suitable for application in feature telephone products.
The instruction set of HE80000 are easy to learn and simple to use. Thirty-two instructions with four-type
January 20, 2003
1
V1.0E
KB [ King blillion Electronics Co.,Ltd. ]
