ST2100 datasheet(14/39 Pages) STMICROELECTRONICS

14 / 39 page

Pin descriptions

ST2100

14/39

DocID025777 Rev 1

Pin descriptions

From Table 4 to Table 15 on page 21 and Table 16 in Section 5 on page 29 describe the

STreamPlug ST2100 pinouts.

4.1

Dedicated pins

Table 4. Master clock RTC, RESET and 3.3 V comparator pin descriptions

Group

Signal name

Ball Direction

Function

Pin type

Master

clock

RCG_MCLK_A

AB18

24 MHz (typical) crystal in Oscillator 2.5 V capable

RCG_MCLK_ZO

AB19

Out

24 MHz (typical) crystal

out

Oscillator 2.5 V capable

RTC

RTC_TST

G23

POR test signal

Keep it at GND

RTC_ZO

H22

Out

32 KHz crystal output

Oscillator 1.5 V capable

RTC_A

H23

32 KHz crystal input

Oscillator 1.5 V capable

RTC_SGN

J23

POR signal

Keep it floating

RESET

MRESET

Y13

Main reset

TTL Schmitt trigger

input buffer 3.3 V

tolerant with PU

3.3 V comp.

COMP_3V3_ ANAREXT

A21

Power

External resistor for 3.3 V

I/Os compensation

Analog, 3.3 V capable

COMP_3V3_ GNDBGCOMP A22

Power

Return for external

resistor for 3.3 V I/Os

compensation

Table 5. Power supply pin descriptions

Group

Signal name

Ball

Value

DIGITAL

GROUND

GND

A1, A23, D5, D20, J11, J13, K10,K11, K12, K13,

K14,K22, L10, L11, L12, L13, L14, L21, M1, M4,

M10, M11, M12, M13, M14, M20, N10, N11, N12,

N13, N14, P10, P11, P12, P13, P14, R11, R13,

R22, AC1, AC23, AB23

0 V

DVSS_USB

AB17

GND_ADC

V21

GND_DAC

T23

GND_RCG_CLK_SYNTH

AA19

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