STA2058EX datasheet(10/20 Pages) STMICROELECTRONICS

10 / 20 page

System block diagram

STA2058

10/20

3.3

Power supply pins

Note:

V33 and V33IO-PLL are all internally connected. Same for VSS and VSSIO-PLL.

All VSS, VSS18, VSSBKP, AVSS pins must be tied together to the common ground plane, taking

care of noise filtering, especially on AVSS

Table 3.

Power supply pins

Symbol

I/O

Function

LQFP 64

LFBGA 144

V33

Digital Supply Voltage for I/O circuitry (3.3 Volt)

9, 51

D2,A3,K3,F6,B9

, E9,B10

VSS

Digital Ground for I/O circuitry

4, 8, 44,

50, 59

D1,A2,F4,L4,M

4, F5, D7,E10

V33IO-PLL

Digital Supply Voltage for I/O circuitry and for PLL

reference (3.3V)

H12

VSSIO-PLL

Digital Ground for I/O circuitry and for PLL reference

H11

V33REG_B

Digital Supply Voltage for backup block I/O circuitry

and for Ballast I/O (3.3V)

VSSREG

Digital Ground for Ballast I/O

V18

Digital Supply Voltage for core circuitry (1.8 Volt):

When using the Internal Voltage Regulator, this pin

shall not be driven by an external voltage supply, but

a capacitance of at least 10

μF (Tantalum, low series

resistance) + 33nF (ceramic) shall be connected

between these pins and VSS18 to guarantee on-chip

voltage stability.

27, 58

G6, H6,E7

VSS18

Digital Ground for core circuitry

28, 57

A9,L7

V18BKP

Digital Supply Voltage for Backup block (RTC,

oscillator, Wake-up controller - 1.8 Volt): when using

the Internal Voltage Regulator, this pin shall not be

driven by an external voltage supply, but a

capacitance of at least 1

μF shall be connected

between this pin and VSSBKP to guarantee on-chip

voltage stability.

J6,K6

VSSBKP

Digital Ground for Backup logic

AVDD

Analog Supply Voltage for the A/D Converter

M9, M11

AVSS

Analog Supply Ground for the A/D Converter

J8,K8

STA2058EX Datasheet(PDF) 10 Page - STMicroelectronics

STA2058EX Datasheet(HTML) 10 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL