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LC-32LE511
LC-40LE511
LC-40LE531
INT
RSVDL
RSVDL
Pin Name
Pin Name
Pin
CEC_A
CEC_D
Power and Ground Pins
Signal Name
VCC33
MICOM_VCC33
SBVCC33
ePAD
44
52
Schmitt
Input
Open drain
Output
8 mA
5-V tolerant
10
Reserved pin
—
28
Type
Direct
ion
50
CEC Compliant
Input
5-V tolerant
Output
51
LVTTL
Input
Schmitt
Output
Open drain
5-V tolerant
9, 27, 64
37
38
ePad
this pin is used as the TPWR output, indicating that the selected HDMI input
port is receiving an active TMDS clock. This pin has an internal pull-up to
the MICOMVCC33 power supply. If this signal is pulled-down, a 4.7K ohm
resistor should be used.
Interrupt Output.
This is an open-drain output and requires an external pull-up resistor.
These pins must be tied to ground with a 10 k or less resistor during
normal operation. Connecting directly to ground is recommended.
Description
HDMI compliant CEC I/O used for interfacing to CEC devices.
This signal is electrically compliant with the CEC specification. It connects
to the CEC signal of all HDMI connectors in the system.
As an input, this pin acts as a LVTTL Schmitt triggered input and is 5-V
tolerant. As an output, the pin acts as an NMOS driver with resistive pull-up.
This pin has an internal pull-up resistor.
CEC interface to local system.
This pin is an open drain and requires an external pull-up resistor. This pin
typically connects to a local CPU if the CEC functions are performed by the
CPU directly, and not the CEC controller inside the device.
Type
Power
Analog and digital core VCC. Must be supplied at 3.3 V.
Output
During normal mode, this pin provides 3.3 V power to an external
microcontroller. The maximum output current is 30 mA. This pin
requires 1 F capacitor to ground.
Power
3.3V standby power. If 3.3V standby mode is not used, this pin
should be left as not connected.
Ground
ePad must be connected to Ground.
All analog and digital ground planes are tied together to the ePad,
which must be connected to Ground.
62
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