S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X ELECTRICAL DATA
17-7
Table 17-5. A.C. Electrical Characteristics
(TA = − 25°C to + 85
°C, VDD = 2.0 V to 3.6 V)
Parameter Symbol Conditions Min Typ Max Unit
External SCK source 1,000 − − ns SCK cycle time tKCY
Internal SCK source 1,000
External SCK source 500 SCK high, low width tKH, tKL
Internal SCK source tKCY/2−50
External SCK source 250 SI setup time to SCK high tSIK
Internal SCK source 250
tKSI External SCK source 400
SI hold time to SCK high
Internal SCK source 400
External SCK source − − 300 ns Output delay for SCK to SO tKSO
Internal SCK source 250
Interrupt input, High, Low width tINTH,
tINTL
All interrupt
VDD = 3 V 500 700 − ns
nRESET input Low width tRSL Input
VDD = 3 V 10 − − µs
t
INTH
t
INTL
0.8 V
DD
0.2 V
DD
NOTE:
The unit t
CPU
means one CPU clock period.
External
Interrupt
Figure 17-3. Input Timing for External Interrupts