BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 7

• Manufacturer Part Number: BS85B12-3
• Description: Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

BS85B12-3/BS85C20-3
Touch Key Flash MCU with LCD/LED Driver
Technical Document
Features
Rev. 1.00
CPU Features
Peripheral Features
Application Note
HA0075E MCU Reset and Oscillator Circuits Application Note
Operating Voltage:
f
f
f
Power down and wake-up functions to reduce power consumption
Fully integrated low and high speed internal oscillators
Low speed -- 32kHz
High speed -- 8MHz, 12MHz, 16MHz
Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
All instructions executed in one or two instruction cycles
Table read instructions
63 powerful instructions
Up to 4 subroutine nesting levels
Bit manipulation instruction
Fully integrated 12 or 20 touch key functions -- require no external components
Flash Program Memory: 2K 15 or 4K 15
RAM Data Memory: 256 8 or 384 8
EEPROM Memory: 64 8 or 128 8
Watchdog Timer function
Up to 38 bidirectional I/O lines
Two or three Timer Modules
Dual Time-Base functions for generation of fixed time interrupt signals
I
Low voltage reset function
Software controlled 4 14 or 4 22 LCD driver with 1/3 bias
Software controlled 6 8 or 8 14 LED driver
SYS
SYS
SYS
2
C and SPI interfaces
= 8MHz: V
= 12MHz: 2.7V~5.5V
= 16MHz: 4.5V~5.5V
LVR
~5.5V
1
February 1, 2011