CXP85840A

Features:

• A wide instruction set (213 instructions) which covers various types of data
16-bit operation/multiplication and division/Boolean bit operation instructions
• Minimum instruction cycle 333ns at 12MHz operation
• Incorporated ROM 40K bytes (CXP85840A) 48K bytes (CXP85848A) 56K bytes (CXP85856A)
• Incorporated RAM 2176 bytes (Excludes closed caption decoder and VRAM for on-screen display)
• Peripheral functions
A/D converter 8-bit 6-channel successive approximation method (Conversion time of 26.7µs at 12MHz)
Serial interface 8-bit clock sync type, 1 channel
Timer 8-bit timer 8-bit timer/counter 19-bit time-base timer
Closed caption decoder Data slicer
Corresponds to FCC (EDS supported), 8*13 dots, 192 character types 15 character colors, 4 lines *34 characters frame background 15 colors/ half blanking italic, underline, vertical scrolling
On-screen display (OSD) function 12 ´ 16 dots, 192 character types, 15 character colors 2 lines *24 characters frame background 8 colors/ half blanking background on full screen 15 colors/ half blanking edging and vertical scrolling for every line jitter elimination circuit sprite OSD, 12 *16 dots, 1 screen, 8 colors for every dot
I²C bus interface
PWM output 8 bits, 8 channels
Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
HSYNC counter 2 channels
Watchdog timer
• Interruption 15 factors, 15 vectors, multi-interruption possible
• Standby mode Sleep
• Package 64-pin plastic SDIP/QFP
• Piggyback/evaluator CXP85890A 64-pin ceramic PSDIP (Supports custom font) Silicon gate CMOS IC


Pinout




Specifications

Item	Symbol	Rating	Unit	Remarks
Supply voltage	VDD	0.3 to +7.0	V
Input voltage	VIN	0.3 to +7.0*1	V
Output voltage	VOUT	0.3 to +7.0*1	V
Mid-voltage drive output voltage	VOUTP	0.3 to +15.0	V	PF0 to PF3 pins
High level output current	IOH	5	mA
High level total output current	IOH	50	mA	Total of all output pins
Low level output current	IOL	15	mA	Ports excluding large current output (value per pin)
	IOLC	20	mA	Large current output ports (value per pin*2)
Low level total output current	IOL	130	mA	Total for all outputs
Operating temperature	Topr	20 to +75	°C
Storage temperature	Tstg	55 to +150	°C
Allowable power dissipation	PD	600	mW	SDIP-64P-01
		380	mW	GFP-64P-L01

Description

The CXP85840A/85848A/85856A are the CMOS 8-bit microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter, time-base timer, closed caption decoder, data slicer, on-screen display function, I²C bus interface, PWM output,remote control reception circuit, HSYNC counter and watchdog timer, besides the basic configurations of 8-bit CPU, ROM, RAM, I/O ports.
The CXP85840A/85848A/85856A also provide a power-on reset function and sleep function that enables to lower the power consumption.