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| X5643 Datasheet, PDF (11/19 Pages) Intersil Corporation – CPU Supervisor with 64Kbit SPI EEPROM | |||
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X5643, X5645
CAPACITANCE TA = +25°C, f = 1MHz, VCC = 5V
Symbol
COUT(2)
CIN(2)
Test
Output Capacitance (SO, RESET/RESET)
Input Capacitance (SCK, SI, CS, WP)
Max.
8
6
Unit
pF
pF
Conditions
VOUT = 0V
VIN = 0V
Notes: (1) VIL min. and VIH max. are for reference only and are not tested.
(2) This parameter is periodically sampled and not 100% tested.
EQUIVALENT A.C. LOAD CIRCUIT AT 5V VCC
5V
5V
2.06kâ¦
4.6kâ¦
A.C. TEST CONDITIONS
Input pulse levels
Input rise and fall times
Input and output timing level
VCC x 0.1 to VCC x 0.9
10ns
VCC x0.5
Output
3.03kâ¦
RESET/RESET
100pF
30pF
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified)
Serial Input Timing
Symbol
fSCK
tCYC
tLEAD
tLAG
tWH
tWL
tSU
tH
tRI(3)
tFI(3)
tCS
tWC(4)
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
Parameter
2.7-5.5V
Min.
Max.
0
2
500
250
250
200
250
50
50
100
100
500
10
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
11
FN8135.1
July 18, 2005
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