X25040
EQUIVALENT A.C. LOAD CIRCUIT AT 5V V
CC
5V
2.16KΩ
OUTPUT
3.07KΩ
100pF
A.C. TEST CONDITIONS
Input Pulse Levels
V
CC
x 0.1 to V
CC
x 0.9
Input Rise and Fall Times
10ns
Input and Output Timing Level
V
CC
x 0.5
6451 PGM T10
6451 FHD F12.1
A.C. CHARACTERISTICS
(Over recommended operating conditions, unless otherwise specified)
Data Input Timing
Symbol
f
SCK
t
CYC
t
LEAD
t
LAG
t
WH
t
WL
t
SU
t
H
t
RI
t
FI
t
HD
t
CD
t
CS
t
WC(4)
Data Output Timing
Symbol
f
SCK
t
DIS
t
V
t
HO
t
RO(3)
t
FO(3)
t
LZ
t
HZ
Parameter
Clock Frequency
Output Disable Time
Output Valid from Clock LOW
Output Hold Time
Output Rise Time
Output Fall Time
HOLD
HIGH to Output in Low Z
HOLD
LOW to Output in High Z
Min.
0
Max.
1
500
400
300
300
100
100
Units
MHz
ns
ns
ns
ns
ns
ns
ns
6451 PGM T12.1
Parameter
Clock Frequency
Cycle Time
CS
Lead Time
CS
Lag Time
Clock HIGH Time
Clock LOW Time
Data Setup Time
Data Hold Time
Data In Rise Time
Data In Fall Time
HOLD
Setup Time
HOLD
Hold Time
CS
Deselect Time
Write Cycle Time
Min.
0
1000
500
500
400
400
100
100
Max.
1
2
2
200
200
500
10
Units
MHz
ns
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ms
6451 PGM T11.1
0
Notes:
(3) This parameter is periodically sampled and not 100% tested.
(4) t
WC
is the time from the rising edge of
CS
after a valid write sequence has been sent to the end of the self-timed internal
nonvolatile write cycle.
9
ICMIC [ IC MICROSYSTEMS ]
