DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 784

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.7.3
Adding capacitance results in coupling with GND, and therefore noise in GND may adversely
affect the absolute accuracy. Be sure to make the connection to an electrically stable GND such as
AVss.
Care is also required to insure that filter circuits do not interfere with digital signals on the
mounting board, so acting as antennas.
22.7.4
If conditions shown below are not met, the reliability of this LSI may be adversely affected.
•
• Relation between AVcc, AVss and Vcc, Vss
• AVref pin range
22.7.5
In board design, digital circuitry and analog circuitry should be as mutually isolated as possible,
and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close
proximity should be avoided as far as possible. Failure to do so may result in incorrect operation
of the analog circuitry due to inductance, adversely affecting A/D conversion values. Also, digital
circuitry must be isolated from the analog input pins (AN0 to AN15), analog reference voltage
(AVref), and analog power supply voltage (AVcc) by the analog ground (AVss). Also, the analog
ground (AVss) should be connected at one point to a stable ground (Vss) on the board.
Rev. 2.00 Sep. 28, 2009 Page 742 of 994
REJ09B0452-0200
The voltage applied to analog input pins (AN0 to AN15) during A/D conversion should be in
the range AVss ≤ ANn ≤ AVref (n = 0 to 15).
As the relationship between AVcc, AVss and Vcc, Vss, set AVcc = Vcc ±0.3 V and AVss =
Vss. If the A/D converter is not used, set AVcc = Vcc and AVss = Vss.
The reference voltage of the AVref pin should be in the range AVref ≤ AVcc.
Analog input voltage range
Influences on Absolute Accuracy
Setting Range of Analog Power Supply and Other Pins
Notes on Board Design