Samsung 8-Bit Manual do Utilizador descarregar pdf (Página 219)

S3C9228/P9228 ELECTRICAL DATA

16-7

Table 16-5. A.C. Electrical Characteristics

(T

A

= – 25

°

C to + 85

°

C, V

DD

= 2.0 V to 5.5 V)

Parameter Symbol Conditions Min Typ Max Unit

SCK cycle time

t

KCY

External SCK source 1,000 – – ns

Internal SCK source 1,000

SCK high, low width

t

KH

, t

KL

External SCK source 500

Internal SCK source

t

KCY

/2–50

SI setup time to SCK

high

t

SIK

External SCK source 250

Internal SCK source 250

SI hold time to SCK high

t

KSI

External SCK source 400

Internal SCK source 400

Output delay for SCK to

SO

t

KSO

External SCK source – – 300 ns

Internal SCK source 250

Interrupt input, High,

Low width

t

INTH

,

t

INTL

All interrupt

V

DD

= 3 V

500 700 – ns

RESET input Low width

t

RSL

Input

V

DD

= 3 V

10 – –

µs

1 2 ... 214 215 216 217 218 219 220 221 222 223 224 ... 461 462

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