DMC42C1008的产品特征：
*Memory mapped I/O
*Program memory : 8192 x 10bits
*Data memory : 512 x 4bits
*Instructions
- Various bit manipulation
- 8-bit data operation
- 7-bit relative branch
- 1 byte absolute call
,*Instruction cycle times
- Main ( XI = 4.19MHz )
. 15.3 us ( XI/64 = 65.5KHz )
. 1.91 us ( XI/8 = 524.0KHz )
. 0.95 us ( XI/4 = 1.05MHz )
- Sub ( XTI = 32.768KHz )
. 122 us ( XTI/4 = 8.19KHz )
*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 : 4
- Internal interrupt : 4
*Watch timer
- 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
*8-bit serial communication interface
- External / Internal clock selection
- Mode : Transmit ·Receive
Receive only
Clock continuous
*LCD controller/driver
- selectable number of segments ;
20/24/28/32 segment (4/8/12 lines can
be specified as bit ports)
- Display mode selection
· Static
· 1/2 duty (1/2 bias)
· 1/3 duty (1/2 bias)
· 1/3 duty (1/3 bias)
· 1/4 duty (1/3 bias)
*Key scan
- 4, 6, 8 Pins Selectable : Port 4, 5
- Falling edge operation
*64 I/O Pins
- LCD driver output pins : 36
. Segment ouput pins : 20
. Segment CMOS output pins : 12
. Common ounput pins : 4
- CMOS input/output pins : 32
*Power saving mode
- STOP : Main clock, CPU clock stop
- STBY : Only CPU clock stop
Main clock operation
* Package : 80 QFP
DMC42C1008的技术参数：
| PARAMETER |
SYMBOL |
CONDITION |
RATING |
UNIT |
| Supply Voltage |
VDD |
- |
-0.3 to +7.0 |
V |
| Input Voltage |
VI |
All I/O ports |
-0.3 to VDD+0.3 |
V |
| Output Voltage |
VO |
- |
-0.3 to VDD+0.3 |
V |
| Output Current High |
IOH |
One I/O port active |
-15 |
mA |
| All I/O ports active |
-30 |
| Output Current Low |
IOL |
One I/O port active
- |
Peak Value
RMS Value |
+30
+15 |
mA |
Total value for ports
P1, P2, P3, P8 |
Peak Value
RMS Value |
+100
+60 |
Total value for ports
P0, P4, P5, P6 |
Peak Value
RMS Value |
+100
+60 |
| Operating Temperature TA |
- |
-40 to +85 |
|
| Storage Temperature |
Tstg |
- |
-55 to +125 |
|
DMC42C1008的产品描述：
The DMC42C1008 is a microcomputer of the 4-bit single chip microcomputer DMC42xx series which can match an 8-bit microcomputer in the data processing capability.
The DMC42C1008 can handle 1-bit, 4-bit, and 8-bit data as well as operates at high speed (minimum instruction execution time : 0.95us) it contains a LCD pannel controller/driver.
