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ELECTRICAL DATA KS57C2308/P2308/C2316/P2316
14-6
Table 14-4. Subsystem Clock Oscillator Characteristics
(T
A
= – 40
°
C + 85
°
C, V
DD
= 1.8 V to 5.5 V)
Oscillator Clock
Configuration
Parameter Test Condition Min Typ Max Units
Crystal
Oscillator
XT
IN
XT
OUT
C1 C2
Oscillation frequency
(1)
– 32 32.768 35 kHz
Stabilization time
(2)
V
DD
= 4.5 V to 5.5 V
– 1.0 2 s
V
DD
= 1.8 V to 4.5 V
– – 10
External
Clock
XT
IN
XT
OUT
XT
IN
input frequency
(1)
– 32 – 100 kHz
XT
IN
input high and low
level width (t
XTL
, t
XTH
)
– 5 – 15 µs
NOTES:
1. Oscillation frequency and XT
IN
input frequency data are for oscillator characteristics only.
2. Stabilization time is the interval required for oscillating stabilization after a power-on occurs.
Table 14-5. Input/Output Capacitance
(T
A
= 25
°
C, V
DD
= 0 V )
Parameter Symbol Condition Min Typ Max Units
Input
capacitance
C
IN
f = 1 MHz; Unmeasured pins
are returned to V
SS
– – 15 pF
Output
capacitance
C
OUT
– – 15 pF
I/O capacitance
C
IO
– – 15 pF