X5648 INTERSIL [Intersil Corporation], X5648 Datasheet - Page 11

• Manufacturer Part Number: X5648
• Description: CPU Supervisor with 64Kbit SPI EEPROM
• Manufacturer: INTERSIL [Intersil Corporation]

EQUIVALENT A.C. LOAD CIRCUIT AT 5V V
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified)
Serial Input Timing
Serial Input Timing
Output
Symbol
t
t
t
f
t
t
WC
LEAD
t
3.03kΩ
t
CYC
t
RI
FI
SCK
LAG
t
t
SCK
WH
WL
SU
t
CS
H
SO
CS
(3)
(3)
(4)
SI
5V
Clock frequency
Cycle time
CS lead time
CS lag time
Clock HIGH time
Clock LOW time
Data setup time
Data hold time
Input rise time
Input fall time
CS deselect time
Write cycle time
2.06kΩ
t
SU
High Impedance
100pF
MSB IN
11
t
LEAD
RESET/RESET
t
H
Parameter
5V
CC
4.6kΩ
30pF
X5648, X5649
A.C. TEST CONDITIONS
Input pulse levels
Input rise and fall times
Input and output timing level
t
RI
Min.
500
250
250
200
250
500
50
50
0
t
FI
2.7-5.5V
LSB IN
t
CS
Max.
100
100
10
V
V
10ns
2
CC
CC
t
x 0.1 to V
x 0.5
LAG
Unit
MHz
March 17, 2005
CC
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
x 0.9
FN8136.0