STW4810CRAE/LF ST-Ericsson Inc, STW4810CRAE/LF Datasheet - Page 18

• Manufacturer Part Number: STW4810CRAE/LF
• Description: IC PWR MNGMNT MULTIMEDIA 84VFBGA
• Manufacturer: ST-Ericsson Inc

Specifications of STW4810CRAE/LF

• Applications: Processor
• Current - Supply: 170µA
• Voltage - Supply: 2.7 V ~ 4.8 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 84-VFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STw4810
Figure 4.
Registers reset
In the event of a hardware reset coming from the modem, PON ball set to “0”, all registers
are reset at initial value when PON ball goes back to “1” level.
A software reset from multimedia processor of STw4810, through SW_RESETn ball set to
“0”, reset all registers except power control register (at address 1E & 1F).
Main clock oscillator control
REQUEST_MC is an OR output gate between PWREN (coming from multimedia processor)
and TCXO_EN (coming from modem supply), it is synchronized on 32 kHz, except during
power-up where PWREN is masked and considered as high.
REQUEST_MC enabled or disabled the master clock oscillator device.
Sleep regulators
PDN_regulators
int_OSC_detect
REQUEST_MC
MASTER_CLK
Internal_OSC
PDN_intOSC
PWREN
CLK32K
VDDOK
Switching POWER to sleep timing
HPM
SLEEP
~100µs
Functional description
HPM
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