DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 659

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, 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 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

20.1
This LSI incorporate a 10-bit successive-approximations A/D converter that allows up to eight
analog input channels to be selected.
In addition to the eight analog input channels, up to 16 channels of digital input can be selected for
A/D conversion. Since the conversion precision falls when digital input is selected, digital input is
ideal for use by a comparator identifying multi-valued inputs, for example.
20.1.1
A/D converter features are listed below.
10-bit resolution
Eight (analog) or 16 (digital) input channels
Settable analog conversion voltage range
High-speed conversion
Choice of single mode or scan mode
Four data registers
Sample and hold function
Three kinds of conversion start
A/D conversion end interrupt generation
The analog conversion voltage range is set using the reference power supply voltage pin
(AVref) as the analog reference voltage
Minimum conversion time: 6.7 µs per channel (at 20-MHz operation)
Single mode: Single-channel A/D conversion
Scan mode:
Conversion results are held in a 16-bit data register for each channel
Choice of software or timer conversion start trigger (8-bit timer), or ADTRG pin
An A/D conversion end interrupt (ADI) request can be generated at the end of A/D
conversion
Overview
Features
Continuous A/D conversion on 1 to 4 channels
Section 20 A/D Converter
Rev. 4.00 Sep 27, 2006 page 613 of 1130
Section 20 A/D Converter
REJ09B0327-0400