Intel mcs-48 manual Reset, Application Examples

APPLICATION EXAMPLES

+5V GND

b~L

	Vee	VDD Vss	P10	27
	2
			P11	28
~ XTAL 1
				29
~			P12	30
	3		P13
			P14	31
	XTAL 2
15-25pf			P15	32
			P16	33
f-----! RESET
			P17	34
1ufd			P20	21
	EA	8049	P21	22
			P22	23
-=-		8048		24
	5		P23
		8748		35
	55		P24
NC				36
			P25
			P26	37
			P27	38

}~'"

}~'"

[ INPUT 1 AND

OUTPUT

[ INPUT]

AND

OUTPUT

1		DBO 12		} ['''~]
	TO
		DB5	17
39		DB1	13
INPUT -- :	T1	DB2 14
{-	INT	DB3 15		BUS PORT	AND
		DB4	16		OUTPUT
		DB6 18
		DB7 19
	NC	NC

•All inputs and outputs (except RESET, X1, X2) standard TTL compatible

•P1 and P2 outputs drive 5V CMOS directly others require 10 to 50KO, pullup for CMOS compatibility

XTAL: Series Resonant	crs Knights MP060
1 to 6 MHz	Crystek CY6B
or	or equivalent
Parallel Resonant	or standard 3.58 MHz
for higher	TV Color Burst XTAL
accuracy
THE STAND ALONE 8048/8049

5-2