Rainbow-electronics AT73C246 Bedienungsanleitung PDF herunterladen (Seite 13)

11050A–PMAAC–07-Apr-10

AT73C246

9.3 Digital I/Os DC Characteristics

Notes: 1. V

PAD

referred pins ITB, RSTB: open drain outputs. Only V

and I

parameters are applicable.

2. V

PAD

referred pins WAKEUP1, WAKEUP2, WAKEUP3, MCLK, DAI, TWCK: CMOS inputs. Only V

and V

parameters are

applicable.

3. V

PAD

referred pins MCLK32K, DAO: CMOS outputs. Only V

, V

and I

parameters are applicable.

4. V

PAD

referred pin TWD: CMOS input and open drain output. Only V

, V

, I

parameters are applicable.

5. V

PAD

referred pins LRFS, BCLK: CMOS BiDir. All parameters applicable

Note: V

BACKUP

referred pins PWREN, HRST, WAKEUP0: CMOS inputs. Only V

and V

parameters are applicable.

Table 9-3. V

PAD

Referred Digital I/Os

Symbol Parameter Comments Min Typ Max Units

PAD

Operating Supply Voltage 1.75 3.6 5.5 V

Input Low-Level Voltage -0.3 -

0.3 x

PAD

Input High-Level Voltage

0.7 x

PAD

0.3

Output High-Level Voltage I

max.

0.75 x

PAD

--V

Output Low-Level Voltage I

max - -

0.25 x

PAD

Output Current - - 8 mA

Pull-Up or Pull-Down Resistance When applicable. 70 100 145 kΩ

Table 9-4. V

BACKUP

Referred Digital I/Os

Symbol Parameter Comments Min Typ Max Units

BACKUP

Operating Supply Voltage 1.75 2.5 2.65 V

Input Low-Level Voltage -0.3 -

0.3 x

BACKUP

Input High-Level Voltage

0.7 x

BACKUP

+ 0.3

Output High-Level Voltage I

max.

0.75 x

BACKUP

--V

Output Low-Level Voltage I

max - -

0.25 x

BACKUP

Output Current - - 8 mA

Pull-Up or Pull-Down resistance When applicable. 70 100 145 kΩ

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