DF2117VLP20V Renesas Electronics America, DF2117VLP20V Datasheet - Page 262

• Manufacturer Part Number: DF2117VLP20V
• Description: IC H8S/2117 MCU FLASH 145TFLGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VLP20V

• 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: 145-TFLGA
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2166 - DEV EVAL KIT H8S/2166
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 8 8-Bit PWM Timer (PWMU)
(1)
(2)
The following shows an example of a circuit in which PWMU output pulses are used as a D/A
converter. When a low-pass filter is connected externally to the LSI, low-ripple analog output can
be generated. If pulse division mode is used, a D/A output with even less ripple is available.
Rev. 3.00 Sep. 28, 2009 Page 216 of 910
REJ09B0350-0300
PWMREG
example
A duty cycle of 0/256 to 255/256 is output as a low-ripple waveform by combining basic pulses and additional pulses.
setting
H'7F
H'80
H'81
H'82
Example of Setting
Example of Circuit for Use as D/A Converter
: Position of additional pulse
0
1
Figure 8.10 Example of Circuit for Use as a D/A Converter
2
3
This LSI
4
5
Figure 8.9 Example of WMU Setting
1 conversion period
6
7
Resistor: 120 kΩ
8
9
Low-pass filter
10
11
12
Capacitor: 0.1 μF
13
Reference values
14
15
Duty cycle
127/256
128/256
129/256
130/256
Basic
waveform
112 pulses
128 pulses
128 pulses
128 pulses
Additional
pulses
15 pulses
0 pulse
1 pulse
2 pulses