STA321 datasheet(14/157 Pages) STMICROELECTRONICS

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Electrical specifications

STA321

14/157

Doc ID 15351 Rev 3

3.3

Electrical characteristics

Unless otherwise specified, the results in Table 6 below are given for the operating

conditions VCC =3.3 V, RL = 32 Ω, fMCLK = 12.288 MHz, Tamb = 25 °C and with the PLL set

to default conditions.

Table 6.

Electrical specifications

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

General

VOH

High output voltage, 1.8-V pads

1.4

High output voltage, 3.3-V pads

VVDDIO

- 0.15

VOL

Low output voltage, 1.8-V pads

IOL = 2 mA

--0.15

Low output voltage, 3.3-V pads

IOL = 2 mA

--0.15

Vhys

Schmitt trigger hysteresis, 3.3-V IO

0.4

RUP

Pull-up resistance

Ω

RDN

Pull-down resistance

Ω

ISTBYIO

Standby current, pins VDDIO1,2

Pin STBY = 3.3 V

CLKOUT disabled

-450

µA

IDDIO

Operating current, pins VDDIO1,2

ISTBYL0

Standby current, pins VDD_REG1,2

Deep power-down,

VVDD_REG1,2 = 3.3 V

-450

µA

ISTBYL1

Standby current, pins VDD_REG1,2

Mild power-down,

VVDD_REG1,2 = 3.3 V

-2

IDDL1

Operating current,

pins VDD_REG1,2

fMCLK = 12.288 MHz, Play

from SAI to CMOS bridge

and EAPWM, fADC = 48 kHz

on SAI_out, VAVDD = 3.3 V,

VVDD_REG1,2 = 3.3 V

-45

ISTBYPD

Pre-drive supply current in standby,

pin VCC33

4.7

µA

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