AS8268 datasheet(9/136 Pages) AMSCO

Part #	AS8268

Description	Single-Phase 2-Current Energy Measurement Integrated Circuits with Microcontroller, RTC, Programmable Multi-Purpose I/Os

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Manufacturer	AMSCO [ams AG]

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Data Sheet AS8267 / AS8268

Revision 1.0, 19-Jun-07

Page 9 of 136

6.3

DC/AC Characteristics for Digital Inputs and Outputs

CMOS Input with Schmitt Trigger and Pull-up Resistor (RXD, RES_N)

Parameter

Symbol

Min

Typ

Max

Unit

Notes

High level input voltage

VIH

0.7 x VDD

V

Low level input voltage

VIL

0.3 x VDD

V

Low level input current

IIL

-100

-15

µA

Tested at VDD=3.6V and Vin=0V

CMOS Output (TXD)

Parameter

Symbol

Min

Typ

Max

Unit

Notes

High level output voltage

VOH

2.5

V

Tested at VDD=3.0V

Low level output voltage

VOL

0.4

V

Tested at VDD=3.0V

High level output current

IOH

4

mA

Tested at VDD=3.0V and Vout=VOH

Low level output current

IOL

-4

mA

Tested at VDD=3.0V and Vout=VOL

MPIO Inputs with Pull-up or Pull-down Resistor (SC, S_N, MISO, MOSI)

Parameter

Symbol

Min

Max

Unit Notes

High level input voltage

VIH

0.7*VDD

V

Low level input voltage

VIL

0.3*VDD

V

High level output voltage

VOH

2.5

V

Low level output voltage

VOL

0.4

V

High level output current

IOH

4

mA

Low level output current

IOL

-4

mA

Pull-up

High level input leakage

IIH

-1

1

µA Tested at VDD=Vin=3.6V

Low level input current

IIL

-100

-15

µA Tested at VDD=3.6V and Vin=0V;

‘pull-up’

Pull-down

High level input leakage

IIH

100

15

µA Tested at VDD=Vin=3.6V; ‘pull-down’

Low level input current

IIL

-1

1

µA Tested at VDD=3.6V and Vin=0V

Note:

VOH, VOL, IOH and IOL are tested at VDD=3.0V.

IOL is tested at Vout=VOL

IOH is tested at Vout=VOH

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