LC865508B

Features:

(1) Read Only Memory (ROM) : LC865520B 20480 × 8 bits
: LC865516B 16384 × 8 bits
: LC865512B 12288 × 8 bits
: LC865508B 8192 × 8 bits
: LC865504B 4096 × 8 bits
(2) Random Access Memory (RAM) : LC865520B/16B/12B/08B/04B 512 × 8 bits
(3) Bus Cycle Time/Instruction Cycle Time
The LC865520B/16B/12B/08B/04B are constructed to read ROM twice within one instruction cycle.
It has 1.7 times the performance capability for the same instruction cycle compared to our 4-bit
microcontrollers (LC66000 series).
Bus cycle time indicates the speed to read ROM.


Pinout




Specifications

Parameter		Symbol	Pins	Conditions		Limits
					VDD[V]	min	typ	max	unit
Supply voltage		VDDMAX	VDD	VDD		-0.3		+7.0	V
Input voltage		VI(1)	Ports 74,75 • Ports 80,81,82,83 • RES			-0.3		VDD+0.3
Input/output voltage		VO(1)	• Port 1 • Ports 70,71,72,73 • Ports 84,85,86,87 • Ports 0, 3 of CMOS output			-0.3		VDD+0.3
		VIO(2)	Ports 0, 3 of N-ch open drain output			-0.3		15
High level output current	Peak output current	IOPH(1)	• Ports 0, 1, 3 • Ports 71,72,73 • Ports 84,85,86,87	• CMOS output • For each pin.		-10			mA
	Total output current	IOAH(1)	Ports 0, 1	Total of all pins		-15
		IOAH(2)	Port 3	Total of all pins		-10
		IOAH(3	• Ports 71,72,73 • Ports 84,85,86,87	Total of all pins
Low level output current	Peak output current	IOPL(1)	Ports 0, 1, 3	For each pin.				20
		IOPL(2)	• Ports 70,71,72,73 • Ports 84,85,86,87	For each pin.				15
	Total output current	IOAL(1)	Ports 0,1,70	Total of all pins				60
		IOAL(2)	Port 3	Total of all pins				40
		IOAL(3)	• Ports 71,72,73 • Ports 84,85,86,87	Total of all pins				20
Maximum power dissipation		Pdmax(1)	DIP42S	Ta=-30 to +70°C				630	mW
		Pdmax(2)	QFP48E	Ta=-30 to +70°C				350
Operating temperature range		Topr				-30		70	°C
Storage temperature range		Tstg				-55		125

Description

The LC865508B are 8-bit single chip microcontrollers with the following one-chip features:
- CPU : Operable at a minimum bus cycle time of 0.5s
- On-chip ROM Capacity : 20K/16K/12K/8K/4K bytes
- On-chip RAM Capacity : 512 bytes (LC865520B/16B/12B/08B/04B)
- 16-bit timer/counter (can be divided into two 8 bit timers)
- 16-bit timer/PWM (can be divided into two 8 bit timers)
- 8-channel * 8-bit AD converter
- Two 8-bit synchronous serial-interface circuits
- 13-source 10-vectored interrupt system