MSU2052L40 Просмотр технического описания (PDF) - Mosel Vitelic, Corp
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MSU2052L40 Datasheet PDF : 21 Pages
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MOSEL VITELIC
MSU2052/U2032
Operating Conditions
Symbol
tA
V CC3
V CC5
f osc 16
f osc 25
f osc 40
Description
Ambient temperature under bias
Supply voltage
Oscillator Frequency
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
Remarks
U20x2L
U20x2C
U20x2i16
U20x2i25
U20x2i40
AC Characteristics
(16/25/40 MHz, operating conditions; CL for Port 0, ALE and PSEN Outputs=150pF; CL for all Other Outputs=80pF)
Valid
f osc 16
Variable f osc
Symbol Parameter
Cycle
Min. Typ. Max Min. Typ. Max. Unit Remarks
T LHLL
ALE pulse width
RD/WRT 115
2xT - 10
nS
T AVLL
Address Valid to ALE low
RD/WRT 43
T - 20
nS
T LLAX
Address Hold after ALE low
RD/WRT 53
T - 10
nS
T LLIV
ALE low to Valid Instruction In
RD
240
4xT - 10 nS
T LLPL
ALE low to #PSEN low
RD
53
T - 10
nS
T PLPH
#PSEN pulse width
RD
173
3xT - 15
nS
T PLIV
#PSEN low to Valid Instruction In RD
177
3xT - 10 nS
T PXIX
Instruction Hold after #PSEN
RD
0
0
T PXIZ
Instruction Float after #PSEN
RD
87
nS
T + 25 nS
T AVIV
Address to Valid Instruction In
RD
292
5xT - 20 nS
T PLAZ
#PSEN low to Address Float
RD
10
10 nS
T RLRH
#RD pulse width
RD
365
6xT - 10
nS
T WLWH #WR pulse width
WRT
365
6xT - 10
nS
T RLDV
#RD low to Valid Data in
RD
302
5xT - 10 nS
T RHDX
T RHDZ
Data Hold after #RD
Data Float after #RD
RD
0
0
nS
RD
145
2xT + 20 nS
T LLDV
ALE low to Valid Data In
RD
490
8xT - 10 nS
T AVDV Address to Valid Data In
RD
542
9xT - 20 nS
T LLYL
T AVYL
ALE low to #WR or #RD low
RD/WRT 178
Address Valid to #WR or #RD low RD/WRT 230
197 3xT - 10
4xT - 20
3xT + 10 nS
nS
T QVWH Data Valid to #WR High
WRT
403
7xT - 35
nS
T QVWX Data Valid to #WR transition
WRT
38
T WHQX Data hold after #WR
WRT
73
T RLAZ
#RD low to Address Float
RD
T - 25
T + 10
nS
nS
5 nS
T YHLH
T CHCL
#WR or #RD high to ALE high
Clock fall time
RD/WRT 53
72
T - 10
T + 10 nS
nS
T CLCX
Clock low time
nS
T CLCH
Clock rise time
nS
T CHCX Clock high time
nS
T, T CLCL Clock period
63
1/ fosc
nS
Rev. 1.0 February 1998
7
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