W536A031 Datasheet, PDF (8/16 Pages) Winbond – VOICE/MELODY/LCD CONTROLLER

W536A031
Pad Description, continued
SYMBOL
I/O
DH1, DH2 (5)
O
V3 ~ V6 (5)
O
V2 (5)
I/O
V_SSP (6)
I
V_SS (6)
I
V_DDP (6)
I
V_DD (6)
I
FUNCTION
Connection terminal for voltage double capacitor with 0.1uF. The DH2
connects to capacitor positive node and DH1 negative node if polar
capacitor is used.
LCD COM/SEG output driving voltage. Need an external 0.1uF
capacitor to every pad terminal.
Voltage regulator output pad. An external capacitor is a must. Output
level can be controlled from 0~Fh by LCDM4 register. If internal pump
is enabled (LCDM3.3 = 0 and default value), LCD operating voltage
(VLCD) will be 4*V2 or 5*V2 depending on 1/4 bias or 1/5 bias. A
limitation should be noted that VLCD must be higher than (V_DD -0.5v) to
avoid chip leakage current. While external reference voltage is selected
(LCDM3.3 = 1), V2 pad input voltage cannot be over 1.5 Volt to inhibit
chip damage.
Power ground for PWM or DAC playing output.
Power ground
Power source for PWM or DAC playing output.
Power source.
Notes:
(4) RD1~3 are shared as ADDR/DATA/CLK to interface with W55XXX
(5) 0.1uF is default value, and capacitor value should be larger than 0.1uF if LCD dot size over 0.5mm * 0.5mm.
(6) External application circuit should connect together, please refer to APPLICATION CIRCUIT. To sure chip operation
properly, please bond all VDD, VDDP, VSS and VSSP pads and connect VSS and VSSP from chip outside PCB circuit.
(7) When working at NMOS open drain mode, external pull high voltage can't higher than VDD to avoid leakage current.
5. ELECTRICAL CHARACTERISTICS
5.1 Absolute Maximum Ratings
PARAMETER
Supply Voltage to Ground Potential
Applied Input/Output Voltage
Power Dissipation
Ambient Operating Temperature
Storage Temperature
RATING
-0.3 to +7.0
-0.3 to +7.0
120
0 to +70
-55 to +150
UNIT
V
V
mW
°C
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
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