SPC564A80B4 datasheet(93/157 Pages) STMICROELECTRONICS

Nome de Peças	SPC564A80B4

Descrição Electrónicos	Up to 4 multiply and accumulate operations per cycle

PDF	157 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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93 / 157 page

SPC564A74L7, SPC564A80B4, SPC564A80L7

Electrical characteristics

Doc ID 15399 Rev 9

93/157

Figure 8.

Core voltage regulator controller external components preferred

configuration

MCU

The bypass transistor

MUST be operated out

of saturation region.

Mandatory decoupling

capacitor network

VDDREG

VRCCTL

VDD

VSS

VRCCTL capacitor and resistor is required

Creg

The resistor may or may not be

required. This depends on the

allowable power dissipation of

the npn bypass transistor

device. The resistor may be

used to limit the in-rush current

at power on.

Keep parasitic inductance

under 20nH

Table 17.

SPC564A80 External network specification

External Network

Parameter

Min

Typ

Max

Comment

NJD2873 or BCP68

only

1.1

F2.2F2.97F

X7R,-50%/+35%

3*2.35

F+5F3*4.7F+10F3*6.35F+13.5F

X7R, -50%/+35%

Equivalent ESR of Ce

capacitors

50m

4*50nF

4*100nF

4*135nF

X7R, -50%/+35%

+/-10%

0.252

0.280

0.308

+/-10%

Creg

F

It depends on

external Vreg.

F10F13.5F

X7R, -50%/+35%

1.1

5.6

May or may not be

required. It depends

on the allowable

power dissipation of

T1.



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