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Document Number: 002-04578 Rev. *A
Page 48 of 64
MB90910 Series
ESCR : SCES = 1, ECCR : SCDE = 0
*: The tcp indicates machine clock
Parameter
Symbol
Condition
Value
Unit
Min
Max
Serial clock cycle time
t
SCYC
Internal shift clock opera-
tion
C
L
= 80pF + 1TTL.
5 tcp*
ns
SCK
SOT delay time
t
SHOVI
50
50
ns
SIN
SCK
setup time
t
IVSLI
tcp
80
ns
SCK
SIN hold time
t
SLIXI
0
ns
Serial clock “H” pulse width
t
SHSL
External shift clock opera-
tion
C
L
= 80pF + 1TTL.
3 tcp
t
R
ns
Serial clock “L” pulse width
t
SLSH
tcp
10
ns
SCK
SOT delay time
t
SHOVE
2 tcp
60
ns
SIN
SCK
setup time
t
IVSLE
30
ns
SCK
SIN hold time
t
SLIXE
tcp
30
ns
SCK fall time
t
F
10
ns
SCK rise time
t
R
10
ns
SCK
SOT
SIN
t
SHOVI
t
IVSLI
t
SLIXI
2.4 V
0.8 V
V
IH
V
IL
2.4 V
0.8 V
t
SCYC
Internal Clock Shift
Operation