UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 579

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(6) Successive approximation register (SAR)
(7) 10-bit A/D conversion result register (ADCR)
(8) 8-bit A/D conversion result register (ADCRH)
(9) Controller
(10) AV
(11) AV
The SAR register is a 12-bit register that sets voltage tap data whose values from the array match the voltage
values of the analog input pins, 1 bit at a time starting from the most significant bit (MSB).
If data is set in the SAR register all the way to the least significant bit (LSB) (end of A/D conversion), the contents
of the SAR register (conversion results) are held in the A/D conversion result register (ADCR). When all the
specified A/D conversion operations have ended, an A/D conversion end interrupt request signal (INTAD) is
generated.
The A/D conversion result is loaded from the successive approximation register to this register each time A/D
conversion is completed, and the ADCR register holds the A/D conversion result in its higher 10 bits (the lower 6
bits are fixed to 0).
The A/D conversion result is loaded from the successive approximation register to this register each time A/D
conversion is completed, and the ADCRH register stores the higher 8 bits of the A/D conversion result.
This circuit controls the conversion time of an input analog signal that is to be converted into a digital signal, as
well as starting and stopping of the conversion operation. When A/D conversion has been completed, this
controller generates INTAD.
This pin inputs the reference voltage of the A/D converter, the programmable gain amplifier, the power supply
pins and A/D converter of the comparator, and the comparator. When all pins of ports 2, 8, and 15 are used as
the analog port pins, make the potential of AV
pins of ports 2, 8, and 15 are used as the digital port pins, make AV
The analog signal input to ANI0 to ANI11 is converted into a digital signal, based on the voltage applied across
AV
This is the ground potential pin of the A/D converter. Always use this pin at the same potential as that of the V
pin even when the A/D converter is not used.
Remark
REF
REF
SS
pin
and AV
pin
ANI0 to ANI5
ANI0 to ANI7
ANI0 to ANI9
ANI0 to ANI10 : 48-pin products of 78K0R/IC3 and 78K0R/ID3
ANI0 to ANI11 : 78K0R/IE3
SS
.
: 78K0R/IB3
: 38-pin products of 78K0R/IC3
: 44-pin products of 78K0R/IC3
CHAPTER 12 A/D CONVERTER
User’s Manual U19678EJ1V1UD
REF
be such that 2.7 V ≤ AV
REF
the same potential as V
REF
≤ V
DD
. When one or more of the
DD
.
577
SS