UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 708

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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78K0R/Lx3
16.8 Supplying LCD Drive Voltages V
methods: external resistance division method, internal voltage boosting method, or capacitor split method.
16.8.1 External resistance division method
supplies, without using internal resistors. Figure 16-31 shows examples of LCD drive voltage connection, corresponding to
each bias method.
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
Notes 1. Connect V
Caution To stabilize the potential of the V
With the 78K0R/Lx3 microcontrollers, a LCD drive power supply can be generated using either of three types of
The 78K0R/Lx3 microcontrollers can also use external voltage divider resistors for generating LCD drive power
Figure 16-31. Examples of LCD Drive Power Connections (External Resistance Division Method) (1/2)
2. V
0.1
LC3
μ
can be used as port (P02).
F between each of the pins from V
(a) Static display mode
LC1
V
V
V
V
V
LC0
LC1
LC2
LC3
SS
and V
V
LC0
= V
LC2
DD
directly to GND or V
V
V
V
V
V
V
DD
LC0
LC1
LC2
SS
LC3
Note1
Note1
/P02
LC0
Note2
LC0
, V
LC1
to V
LC0
, V
LC0
LC3
to V
.
LC2,
pins, it is recommended to connect a capacitor of about
LC3
Note V
and V
and the GND pin as needed.
LC3
LC3
CHAPTER 16 LCD CONTROLLER/DRIVER
can be used as port (P02).
(b) 1/2 bias method
V
V
V
V
V
LC0
LC1
LC2
LC3
SS
V
LC0
= V
DD
V
V
V
V
V
P02
V
DD
LC0
LC1
LC2
LC3
SS
/
Note
R
R
708