UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 394

• 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: -

78K0R/Lx3
10.2 Configuration of A/D Converter
(1) ANI0 to ANI10, ANI15 pins
(3) Series resistor string
(4) Voltage comparator
(5) Successive approximation register (SAR)
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
(2) Sample & hold circuit
The A/D converter includes the following hardware.
These are the analog input pins of the A/D converter. They input analog signals to be converted into digital signals.
Pins other than the one selected as the analog input pin can be used as I/O port pins.
Remark 78K0R/LF3:
The sample & hold circuit samples each of the analog input voltages sequentially sent from the input circuit, and
sends them to the A/D voltage comparator. This circuit also holds the sampled analog input voltage during A/D
conversion.
The series resistor string is connected between AD
sampled voltage value.
The voltage comparator compares the sampled voltage value and the output voltage of the series resistor string.
This register converts the result of comparison by the voltage comparator, starting from the most significant bit (MSB).
When the voltage value is converted into a digital value down to the least significant bit (LSB) (end of A/D conversion),
the contents of the SAR register are transferred to the A/D conversion result register (ADCR).
78K0R/LG3, 78K0R/LH3: ANI0-ANI10, ANI15
Figure 10-2. Circuit Configuration of Series Resistor String
AD
AD
REFM
REFP
ANI0-ANI6, ANI15
P-ch
REFP
and AD
Series resistor string
REFM
, and generates a voltage to be compared with the
ADCS
CHAPTER 10 A/D CONVERTER
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