3825

Features:

Basic machine-language instructions....................................... 71
The minimum instruction execution time ............................0.5 s
(at 8MHz oscillation frequency)
Memory size
ROM .................................................................. 4 K to 60 K bytes
RAM ................................................................. 192 to 2048 bytes
Programmable input/output ports ............................................. 43
Software pull-up/pull-down resistors (Ports P0P8)
nterrupts .................................................. 17 sources, 16 vectors
(includes key input interrupt) 
Timers ...........................................................8-bit*3, 16-bit * 2
Serial I/O ...................... 8-bit   1 (UART or Clock-synchronized)
A-D converter.................................................. 8-bit *8 channels
LCD drive control circuit
Bias ...................................................................................1/2, 1/3
Duty ............................................................................1/2, 1/3, 1/4
Common output .......................................................................... 4
Segment output......................................................................... 40
2 Clock generating circuits
Clock (XIN-XOUT)..................................Internal feedback resistor
Sub-clock (XCIN-XCOUT)..........Without internal feedback resistor
connect to external ceramic resonator or quartz-crystal oscillator)
Power source voltage
n high-speed mode ................................................... 4.0 to 5.5 V
n middle-speed mode ............................................... 2.5 to 5.5 V
(Low power source version: 2.2 V to 5.5 V)
(Extended operating temperature version: 3.0 V to 5.5 V)
n low-speed mode..................................................... 2.5 to 5.5 V
(Low power source version: 2.2 V to 5.5 V)
(Extended operating temperature version: 3.0 V to 5.5 V)
Power dissipation
n high-speed mode ...........................................................32 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
n low-speed mode..............................................................45 W
(at 32 kHz oscillation frequency, at 3 V power source voltage)
Operating temperature range ................................... 20 to 85°C
(Extended operating temperature version: 40 to 85°C)


Application

Camera, household appliances, consumer electronics, etc.


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 7.0	V
VI	Input voltage P16, P17, P20P27, P40P47, P50P57, P60P67, P80, P81		0.3 to VCC +0.3	V
VI	Input voltage P70P77		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 7.0	V
VI	Input voltage C1, C2		0.3 to 7.0	V
VI	Input voltage RESET , XIN		0.3 to VCC +0.3	V
VO	Output voltage C1, C2		0.3 to 7.0	V
VO	Output voltage P00P07, P10P15, P30P37	At output port	0.3 to VCC	V
		At segment output	0.3 to VL3	V
VO	Output voltage P16, P17, P20P27, P40P47, P50P57, P60P67, P71P77 P80, P81		0.3 to VCC +0.3	V
VO	Output voltage VL3		0.3 to 7.0	V
VO	Output voltage VL2, SEG0SEG17		0.3 to VL3	V
VO	Output voltage XOUT		0.3 to VCC +0.3	V
Pd	Power dissipation	Ta = 25°C	300	mW
Topr	Operating temperature		20 to 85
Tstg	Storage temperature		40 to 125

Description

The 3825 group is the 8-bit microcomputer based on the 740 fam-ily core technology.

The 3825 group has the LCD drive control circuit, an 8-channel A-D converter, and a Serial I/O as additional functions.

The various microcomputers in the 3825 group include variations of internal memory size and packaging.For details,refer to the section on  part numbering.

For details on availability of microcomputers in the 3825 group, re-fer the section on group expansion.