SD42C4404 Datasheet, PDF (2/19 Pages) AUK corp – 4Bit Single Chip Microcontroller

SD42C/P4404
Features
Memory mapped I/O
Program memory : 4096 x 10bits (DMC42C4404)
2048 x 10bits (DMC42C4302)
Data memory : 512 x 4bits (DMC42C4404)
256 x 4bits (DMC42C4302)
Instructions
- Various bit manipulation
- 8-bit data operation
- 7-bit relative branch
- 1 byte absolute call
Instruction cycle times ( XI = 4.19MHz )
- 15.3 us ( XI/64 = 65.5KHz )
- 1.91 us ( XI/8 = 524.0KHz )
- 0.95 us ( XI/4 = 1.05MHz )
4 Register Bank
General register : 8 x 4-bit respectively
Accumulator
- Bit Accumulator (CY), 4 bit Accumulator (A),
8 bit Accumulator (XA)
Multiple vectored interrupt source
- External interrupt : 3
- Internal interrupt : 4
Watch timer (at 4.19MHz)
- fast mode : 3.91 msec
- normal mode : 0.5 sec
- buzzer output : 1, 2, 4 KHz
Basic interval timer
- 8 kinds of period
- Used stabilization wait timer to wake up Stop mode
One 8-bit timer / event counter
Key scan
- 7 channels
8-bit serial communication interface
- External / Internal clock selection
- Mode : Transmit, Receive
Receive only
Clock continuous
8-bit A/D converter
- 8-bit successive approximate type
- 4 channels
- Sample and hold
- Conversion time : 17.1us at 4.19MHz
24 I/O Pins
- CMOS Pins : 16
- High current LED direct drive pins
- Internal pull-up resistor ( Mask option )
- Internal pull-down resistor ( Mask option )
Power saving mode
- STOP : Main clock, CPU clock stop
- STBY : Only CPU clock stop
Main clock operation
Operating voltage range
- V_DD = 2.5 ~ 5V ± 10%
Operating temperature range
- T_A = -40 to +85
APPLICATION
Telephone, General
KSI-W031-000
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