MOSEL VITELIC
Operating Conditions
Symbol
t A
V CC3
V CC5
f osc 16
f osc 25
f osc 40
Oscillator Frequency
Description
Ambient temperature under bias
Supply voltage
Min.
0
2.7
4.5
3.0
16
25
Typ.
25
3.0
5.0
16
25
40
Max.
70
4.5
5.5
16
25
40
Unit
°
C
V
V
MHz
MHz
MHz
MSU2051/U2031
Remarks
U20x1L
U20x1S, U20x1C
U20x1i16
U20x1i25
U20x1i40
AC Characteristics
(16/25/40 MHz, operating conditions; CL for Port 0, ALE and PSEN Outputs=150pF; CL for all Other Outputs=80pF)
Valid
Symbol
T LHLL
T AVLL
T LLAX
T LLIV
T LLPL
T PLPH
T PLIV
T PXIX
T PXIZ
T AVIV
T PLAZ
T RLRH
T WLWH
T RLDV
T RHDX
T RHDZ
T LLDV
T AVDV
T LLYL
T AVYL
T QVWH
T QVWX
T WHQX
T RLAZ
T YHLH
T CHCL
T CLCX
T CLCH
T CHCX
T, T CLCL
Parameter
ALE pulse width
Address Valid to ALE low
Address Hold after ALE low
ALE low to Valid Instruction In
ALE low to #PSEN low
#PSEN pulse width
#PSEN low to Valid Instruction In
Instruction Hold after #PSEN
Instruction Float after #PSEN
Address to Valid Instruction In
#PSEN low to Address Float
#RD pulse width
#WR pulse width
#RD low to Valid Data in
Data Hold after #RD
Data Float after #RD
ALE low to Valid Data In
Address to Valid Data In
ALE low to #WR or #RD low
Address Valid to #WR or #RD low
Data Valid to #WR High
Data Valid to #WR transition
Data hold after #WR
#RD low to Address Float
#WR or #RD high to ALE high
Clock fall time
Clock low time
Clock rise time
Clock high time
Clock period
Cycle
RD/WRT
RD/WRT
RD/WRT
RD
RD
RD
RD
RD
RD
RD
RD
RD
WRT
RD
RD
RD
RD
RD
RD/WRT
RD/WRT
WRT
WRT
WRT
RD
RD/WRT
53
178
230
403
38
73
0
365
365
0
Min.
115
43
53
f osc 16
Typ. Max
Variable f osc
Min.
2xT - 10
T - 20
T - 10
240
4xT - 10
T - 10
3xT - 15
177
0
87
292
10
6xT - 10
6xT - 10
302
0
145
490
542
197
3xT - 10
4xT - 20
7xT - 35
T - 25
T + 10
5
72
T - 10
T + 10
2xT + 20
8xT - 10
9xT - 20
3xT + 10
5xT - 10
T + 25
5xT - 20
10
3xT - 10
Typ.
Max.
Unit
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
Remarks
53
173
63
1/ fosc
Rev. 1.0 February 1998
7
MOSEL [ MOSEL VITELIC, CORP ]
