X9251-2.7 INTERSIL [Intersil Corporation], X9251-2.7 Datasheet - Page 15

• Manufacturer Part Number: X9251-2.7
• Description: Single Supply/Low Power/256-Tap/SPI Bus
• Manufacturer: INTERSIL [Intersil Corporation]

EQUIVALENT A.C. LOAD CIRCUIT
AC TIMING
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
T
t
t
t
SCK
CYC
WH
WL
LEAD
LAG
SU
H
RI
FI
DIS
V
HO
RO
FO
HOLD
HSU
HH
HZ
LZ
CS
WPASU
WPAH
Symbol
I
SPI clock frequency
SPI clock cycle rime
SPI clock high rime
SPI clock low time
Lead time
Lag time
SI, SCK, HOLD and CS input setup time
SI, SCK, HOLD and CS input hold time
SI, SCK, HOLD and CS input rise time
SI, SCK, HOLD and CS input fall time
SO output disable time
SO output valid time
SO output hold time
SO output rise time
SO output fall time
HOLD time
HOLD setup time
HOLD hold time
HOLD low to output in high Z
HOLD high to output in low Z
Noise suppression time constant at SI, SCK, HOLD and CS inputs
CS deselect time
WP, A0 setup time
WP, A0 hold time
SO pin
15
V
CC
2kΩ
2kΩ
10pF
Parameter
X9251
R
H
10pF
C
SPICE Macromodel
L
R
TOTAL
R
W
25pF
C
W
Min.
500
200
200
250
250
400
100
100
50
50
0
0
2
0
0
10pF
C
L
R
Max.
L
250
200
100
100
100
100
10
2
2
2
September 14, 2005
Units
MHz
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
FN8166.2