DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 636

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: PWM, WDT
• Number Of I /o: 74
• 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: HD64F2148BTE20; HD64F2148BTE20

Section 20 D/A Converter
20.2
Table 20.1 summarizes the input/output pins used by the D/A converter.
Table 20.1 Pin Configuration
Pin Name
Analog power supply pin
Analog ground pin
Analog output pin 0
Analog output pin 1
Reference power supply pin AVref
20.3
The D/A converter has the following registers.
20.3.1
DADR0 and DADR1 are 8-bit readable/writable registers that store data for D/A conversion.
When analog output is permitted, D/A data register contents are converted and output to analog
output pins. DADR0 and DADR1 are initialized to H'00.
Rev. 3.00 Mar 21, 2006 page 580 of 788
REJ09B0300-0300
D/A data register 0 (DADR0)
D/A data register 1 (DADR1)
D/A control register (DACR)
Register Descriptions
D/A Data Registers 0 and 1 (DADR0, DADR1)
Input/Output Pins
Symbol
AVCC
AVSS
DA0
DA1
I/O
Input
Input
Output
Output
Input
Function
Analog block power supply
Analog block ground and reference voltage
Channel 0 analog output
Channel 1 analog output
Analog block reference voltage