Intel mcs-48 manual VIH1, Bus, Rd, Wr, Psen, Ale, VOL2, BUS, RD, WR, PSEN, ALE VOH1, Ill

18049/8039

ABSOLUTE MAXIMUM RATINGS·

AmbientTemperatureUnderBias	..... -40'Cto +SS'C
Storage Temperature	-6S'Cto +lS0'C
Voltage on Any Pin With
Respectto Ground	-O.SV to +7V

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . .. 1.S Watt

D.C. AND OPERATING CHARACTERISTICS

Symbol	Parameter	Min.
Vil	Input Low Voltage	-0.5
VIH	Input High Voltage
	(All Except XTALl, XTAL2, ffESEf)	2.2
VIH1	Input High Voltage (RESET, Xl, X2)	3.S
VOL	Output Low Voltage
	(BUS, RD, WR, PSEN, ALE)
VOl1	Output Low Voltage
	(All Other Outputs Except PROG)
VOL2	Output Low Voltage (PROG)
VOH	Output High Voltage
	(BUS, RD, WR, PSEN, ALE)	2.4
VOH1	Output High Voltage
	(All Other Outputs)	2.4

IIIInput Leakage Current (n, INT)

IOl	Output Leakage Current (Bus, TO)
	(High Impedance State)

100Power Down Supply Current loo+lee Total Supply Current

'COMMENT: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated iri th{} operational sections of this specification is not implied. Exposure to absolute maximum rating conGitions for extended periods may affect device reliability.

TA = -40°C to +8SoC, Vee = voo = +5V ± 10%, Vss= OV

Limits

Typ. Max. Uhit Test Conditions

0.6V

Vee V

Vee V

0.45V IOl = 1.6 ma

0.45V IOl = 1.2 ma

0.45V IOl = 0.8 rna

V IOH = -80 j.la

V IOH = -30 j.la

±10 J.l.A VSS";;VIN";;Vee

±10 J.l.A Vss + 0.45";; VIN ";;Vee

50mA TA = 25°C

170 mA TA = 2SoC

A.C. CHARACTERISTICS TA = -400C to +8So C, Vee =Voo =+SV ±10%, Vss =OV

Symbol	Parameter
ILL	ALE Pulse Width
t~L	Address Setup to ALE
tLA	Address Hold from ALE
tee	Control Pulse Width (PSEN, RD, WR)
tow	Data Set·Up Before WR
two	Data Hold After WR
tCY	Cycle Time

Min. Max. Unit Conditions (Note 2)

200ns

120ns

SOns

400ns

420ns

80ns CL=20pF

2.515.0 ,..s (6 MHz XTAL for IDS049)

tOR	Data Hold	0	200	ns
tRO	PSEN, RD to Data In		400	ns
tAW	Address Setup to WR	2:)0		ns
tAD	Address Setup to Data In		600	ns
tAFe	Address Float to RD, PSEN	-40		ns

Not•• : 1. 8039·6 specifications are also valid for 8049/8039 operating at SMHz.
2. Control Outputs: CL = 80pF
BUS Outputs:	eL =150pF	6-44	AFN~00737~04