DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 561

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

15.3
The D/A converter includes D/A conversion circuits for two channels, each of which can operate
independently.
D/A conversion is performed continuously while enabled by DACR. If either DADR0 or DADR1
is written to, the new data is immediately converted. The conversion result is output by setting the
corresponding DAOE0 or DAOE1 bit to 1.
The operation example described in this section concerns D/A conversion on channel 0. Figure
15.2 shows the timing of this operation.
[1] Write the conversion data to DADR0.
[2] Set the DAOE0 bit in DACR to 1. D/A conversion is started and the DA0 pin becomes an
[3] If DADR0 is written to again, the new data is immediately converted. The new conversion
[4] If the DAOE0 bit is cleared to 0, the DA0 pin becomes an input pin.
output pin. The conversion result is output after the conversion time has elapsed. The output
value is expressed by the following formula:
The conversion results are output continuously until DADR0 is written to again or the DAOE0
bit is cleared to 0.
result is output after the conversion time has elapsed.
DADR contents
Operation
256
V
ref
Rev. 4.00 Feb 15, 2006 page 535 of 900
Section 15 D/A Converter
REJ09B0291-0400