Features: Basic machine-language instructions ........................................ 71
The minimum instruction execution time ........................... 0.25 s
(at 8MHz oscillation frequency)
Memory size
ROM ..................................................................16 K to 60 K bytes
RAM................................................................... 640 to 2048 bytes
Interrupts....................................................18 sources, 16 vectors
Timers ................................................................8-bit*4, 16-bit*2
A-D converter....................................................10-bit*8 channels
Serial I/O.............................8-bit*2 (UART or Clock-synchronized)
PWM ....................... 10-bit*2, 16-bit*1 (common to IGBT output)
LCD drive control circuit
Bias..................................................................................... 1/2, 1/3
Duty ............................................................................ 1/2, 1/3, 1/4
Common output ............................................................................ 4
Segment output .......................................................................... 24
Two clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
Watchdog timer.................................................................. 8-bit*1
LED direct drive port .................................................................... 8
(average current: 15 mA, peak current: 30 mA, total current: 90 mA)
Power source voltage
In through mode............................................................4.0 to 5.5 V
(at 8 MHz oscillation frequency)
In frequency/2 mode .....................................................1.8 to 5.5 V
(at 4 MHz oscillation frequency, A-D operation excluded)
In low-speed mode .......................................................1.8 to 5.5 V
(at 32 kHz oscillation frequency)
Power dissipation
In through mode....................................................................26 mW
(at 8 MHz oscillation frequency, VCC = 5 V)
In low-speed mode ...............................................................21 W
(at 32 kHz oscillation frequency, VCC = 3 V)
Operating temperature range .................................. 20 to 85°C
Pinout
Specifications
|
Symbol |
Parameter |
Conditions |
Ratings |
Unit |
|
VCC |
Power source voltage |
All voltages are based on Vss
Output transistors are cut off. |
0.3 to 6.5 |
V |
|
VI |
Input voltage P00P07, P10P17, P20P27, P30P37,
P4 P4 , P5 P5 P6 P6 |
0.3 to VCC+0.3 |
V |
|
VI |
Input voltage VL1 |
0.3 to VL2 |
V |
|
VI |
Input voltage VL2 |
VL1 to VL3 |
V |
|
VI |
Input voltage VL3 |
VL2 to 6.5 |
V |
|
VI |
Input voltage RESET, XIN, CNVSS |
0.3 to VCC+0.3 |
V |
|
VO |
Output voltageP00P07, P10P17, P20P27 |
At output port |
0.3 to VCC+0.3 |
V |
|
At segment output |
0.3 to VL3+0.3 |
V |
|
VO |
Output voltageCOM0COM3 |
|
0.3 to VL3+0.3 |
V |
|
VO |
Output voltageP30P37, P40P47, P50P57, P60P62 |
|
0.3 to VCC+0.3 |
V |
|
VO |
Output voltageXOUT |
|
0.3 to VCC+0.3 |
V |
|
Pd |
Power dissipation |
Ta = 25°C |
300 |
mW |
|
Topr |
Operating temperature |
|
20 to 85 |
°C |
|
Tstg |
Storage temperature |
|
40 to 125 |
°C |
DescriptionThe 38C2 group is the 8-bit microcomputer based on the 740 family core technology.
The 38C2 group has an LCD drive control circuit, a 10-channel A-D converter, and a Serial I/O as additional functions.
The various microcomputers in the 38C2 group include variations of internal memory size and packaging. For details, refer to the section on part numbering.
38C2 Data Sheet
