DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 655

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Bit 6—D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output.
Bit 6
DAOE0
0
1
Bit 5—D/A Enable (DAE): Controls D/A conversion, in combination with bits DAOE0 and
DAOE1. D/A conversion is controlled independently on channels 0 and 1 when DAE = 0.
Channels 0 and 1 are controlled together when DAE = 1.
Output of the converted results is always controlled independently by DAOE0 and DAOE1.
Bit 7
DAOE1
0
1
Legend:
*: Don’t care
If the chip enters software standby mode while D/A conversion is enabled, the D/A output is
retained and the analog power supply current is the same as during D/A conversion. If it is
necessary to reduce the analog power supply current in software standby mode, disable D/A
output by clearing the DAOE0, DAOE1, and DAE bits to 0.
Bits 4 to 0—Reserved: These bits cannot be modified and are always read as 1.
Description
Analog output DA0 is disabled
D/A conversion is enabled on channel 0. Analog output DA0 is enabled
Bit 6
DAOE0
0
1
0
1
Bit 5
DAE
*
0
1
0
1
*
D/A conversion
Disabled on channels 0 and 1
Enabled on channel 0
Disabled on channel 1
Enabled on channels 0 and 1
Disabled on channel 0
Enabled on channel 1
Enabled on channels 0 and 1
Enabled on channels 0 and 1
Rev. 4.00 Sep 27, 2006 page 609 of 1130
Section 19 D/A Converter
REJ09B0327-0400
(Initial value)