Intel MCS-80/85 Computer Hardware User Manual


 
8080Al8080A·1/8080A·2
A.C. CHARACTERISTICS (8080A)
(TA
=
O°C
to
70°C,
VOO
= +12V ±5%,
Vee
=
+5V
±5%,
Vee
=
-5V
±5%,
Vss
=OV; unless otherwise noted)
·1
·1
·2
·2
Symbol Parameter
Min. Max.
Min.
Max. Min. Max.
Unit
Test Condition
tCy(3)
Clock Period
0.48 2.0
0.32 2.0 0.38
2.0
"sec
tr,tl
Clock Rise and Fall Time
0
50
0
25
0
50
nsec
t01
01
Pulse
Width
60
50
60
nsec
t02
02
Pulse
Width
220
145 175 nsec
tD1
Delay
01
to
02
0
0
0
nsec
tD2
Delay 02
to
01
70
60
70
nsec
tD3
Delay
01
to
02
Leading Edges
80
60
70
nsec
tDA
Address
Output Delay From 02
200
150 175 nsec
}CL=100
pF
too
Data Output Delay From
02
220
180
200
nsec
tDC
Signal Output Delay From 02 or 02 (SYNC, WR, WAIT, HLDA)
120
110 120 nsec
}
CL=50pF
tDF
DBI N Delay From 02
25
140
25
130
25
140 nsec
tOl[11
Delay for Input Bus
to
Enter Input Mode
tDF tDF tDF
nsec
tDS1
Data Setup Time During
01
and DBIN
30
10
20
nsec
tDS2
Data Setup Time to
02
During DBIN 150
120
130 nsec
tDH(1)
Data
Holt
time
From 02 During DBIN
(1)
(1)
(1)
nsec
tiE
INTE Output Delay From 02
200
200
200
nsec
CL=50
pF
tRS
READY Setup Time During 02
120
90 90
nsec
tHS
HOLD Setup
Time to 02
140
120 120 nsec
tiS
INT Setup Time During 02
120
100
100
nsec
tH
Hold Time From 02 (READY, INT, HOLD) 0
0 0
nsec
tFO
Delay to Float During Hold (Address and Data Bus)
120
120 120
nsec
-
tAW
Address Stable Prior
to
WR
(5)
(5)
(5)
nsec
tow
Output Data Stable Prior to
WR
(6)
(6)
(6)
nsec
two
Output Data Stable From
WR
(7)
(7)
(7)
nsec
tWA
Address Stable From
WR
(7)
(7) (7)
nsec
CL =
100 pF: Address, Data
CL =
50
pF: WR,HLDA,DBIN
tHF
HLDA to
Float Delay
(8)
(8)
(8)
nsec
tWF
WR
to
Float Delay
(9)
(9) (9)
nsec
tAH
Address
Hold Time After DBIN During HLDA
-20
-20
-
20
nsec
-
A.C. TESTING LOAD CIRCUIT
DEVICE
UNDER
lC'~"'"
TEST
Cl~
100pF
C
l
INCLUDES JIG CAPACITANCE
--
6-4
AFN-00735C