MDT90P01_09 Datasheet, PDF (2/11 Pages) Micon Design Technology Corporation – 4-bit micro-controller

5. Order Information
MDT90P01
Device
MARK
ROM
RAM
(Words) (Nibbles)
I/O
MDT90P01ST2611 01-1
512
24
4
MDT90P01ST2612 01-2
512
24
4
Timer
(8 Bit)
1
1
Package
SOT-26
SOT-26
Remark
PB2 Output is open
drain type
PB2 Output is CMOS
type
6. Block Diagram
Stack Two Levels
9 bits
Program Counters
ROM
512×11
9 bits
11 bits
Instruction
Register
RAM
24 x 4
Special Register
Oscillator Circuit
(INTRC 4M / 8Mhz)
Power on Reset
Power Down Reset
Instruction
Decoder
Control Circuit
D0~D3
Working Register
ALU
Data 4-bit
Status Register
Port B
Port
PB0~PB3
4 bits
8-bit Timer /Counter
Prescale
WDT/OST
Timer
PB2(RTCC)
This specification is subject to be changed without notice. Please visit our web site for the most updated information.
http://www.mdtic.com.tw
P. 2
2009/6 Ver. 1.1