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FT801Q-R Fiches technique(PDF) 26 Page - Bridgetek Pte Ltd.

No de pièce FT801Q-R
Description  Embedded Video Engine
PDF  44 Pages
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Fabricant  BRIDGETEK [Bridgetek Pte Ltd.]
Site Internet  https://brtchip.com/
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26
FT801 Embedded Video Engine Datasheet
Version 1.3
Document Reference No.: BRT_000001
Clearance No.: BRT#003
Figure 4-8 1.2V regulator
4.8.3 Power Modes
When supply to VCCIO and VCC is applied, internal 1.2V regulator is powered by VCC. An internal POR
pulse will be generated during the regulator power up until it is stable. After the initial power up, the
FT801 will stay in STANDBY state. When needed, host can set FT801 to ACTIVE state by performing a
dummy read to address 0. The graphics engine, the audio engine and the touch engine are only
functional in ACTIVE state. To save power host can send command to put FT801 into any of the low
power mode: STANDBY, SLEEP and POWERDOWN. In addition, host is allowed to put FT801 in
POWERDOWN mode by drive PD_N pin to low, regardless what current state it is in. Refer to Figure 4-9
for the power state transitions.
VCC
PD_N
VCC1V2
VCC
GND
GND
GND
VCCIO
C
R
Cin
10uF
100nF
1.2V
GND
Ccomp
4.7uF
47k
FT801



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