Intel MCS48 User Manual page 277

8212
A.C.
CHARACTERISTICS
t
a
= o°c
to
+70°c,
v
C c
=
+5V ±
5%
Symbol
Parameter
Limits
Unit
Min. Typ.
Max.
tpw Pulse
Width 30 ns
tPD
Data
to
Output Delay 30
ns Note
1
tWE Write
Enable
to
Output Delay 40 ns Note
1
tSET
Data
Set
Up Time
15
ns
tH
Data Hold
Time
20 ns
tR
Reset
to
Output
Delay
40 ns Note
1
ts
Set to
Output Delay 30 ns Note
1
tE
Output
Enable/Disable
Time 45
ns
Note
1
tc
Clear
to
Output Delay
55
ns Note
1
CAPACITANCE*
F
=
1MHz,
Vbias
=
2.5V,
Vcc =
+5V, Ta
= 25°C
Symbol
Test
Limits
Typ.
Max.
ClN
DSi
MD
Input Capacitance
9pF 12pF
ClN
DS2, CK,
ACK,
DI-i-DIb
Input
Capacitance 5pF 9pF
COUT DOi-DOs
Output Capacitance 8pF 12pF
*This parameter
is
sampled and
not
100%
tested.
SWITCHING CHARACTERISTICS
Conditions
of
Test
Input Pulse Amplitude
=
2.5V
Input Rise
and
Fall
Times 5ns
Between 1V and 2V Measurements made
at
1.5V
with
15mA
and 30pF
Test
Load
Note
1:
Test Load
15mA &
30pF
V
C C
Test
C
L
*
Ri
R
2
tPD,
tWE,
tR, ts, tc
30pF 3oon 60on
tE,
ENABLE!
30pF
ioko iKn
tE,
ENABLE
t
30pF 30on 60on
tE,
DISABLEt 5pF 3oon 60on
tE,
DISABLEl
5pF
ioKn iKn
'Includes
probe and
jig
capacitance.
D.U.T.
T
•INCLUDING
JIG
& PROBE CAPACITANCE
7-39