Rainbow-electronics AT77C105A Bedienungsanleitung PDF herunterladen (Seite 7)

AT77C105A [Preliminary]

5419A–BIOM–01/05

VDD_IO = 2.3V to 3.6V

Input/Output Voltage Level Compatibility

The I/O voltage level compatibility is set by the power voltage driven on the VDD_IO

pad. For 1.8V level compatibility, connect VDD_IO to a 1.8V power supply.

Table 10. Digital Inputs

Logic Compatibility CMOS

Name Parameter Conditions Test Level Min Typ Max Unit

Low level input current without pull-

up device

(1)

= 0V I 1 µA

High level input current without

pull-down device

(1)

= V

DD_IO

I1µA

IOZ

Tri-state output leakage without

pull-up/down device

(1)

= 0V or V

DD_IO

IV 1 µA

Low level input voltage

(1)

0.5

DD_IO

(1)

High level input voltage

(1)

0.6

DD_IO

(1)

HYST

Schmitt trigger hysteresis

(1)

0.06

DD_IO

0.09

DD_IO

Table 11. Digital Outputs

Logic Compatibility CMOS

Name Parameter Conditions Test Level Min Typ Max Unit

Low level output voltage

= 4 mA

DD _IO

= 2.3V to

3.6V

0.10

DD_IO

(1)

High level output voltage

= -4 mA

DD_IO

= 2.3V to

3.6V

I0.90 V

1 2 3 4 5 6 7 8 9 10 11 12 ... 38 39

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