HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 639

• Manufacturer Part Number: HD64F2145BTE20
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of HD64F2145BTE20

• 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: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: -

20.5
When this LSI enters software standby mode with D/A conversion enabled, the D/A output is
retained, and the analog power supply current is equal to as during D/A conversion. If the analog
power supply current needs to be reduced in software standby mode, clear the DAOE1, DAOE0,
and DAE bits all to 0 to disable D/A output.
20.5.1
D/A converter operation can be enabled or disabled using the module stop control register. The
initial setting is for D/A converter operation to be halted. Register access is enabled by canceling
module stop mode. For details, refer to section 26, Power-Down Modes.
Legend:
t
Usage Note
Address
DADR0
DAOE0
DA 0
DCONV
Module Stop Mode Setting
: D/A conversion time
DADR0
write cycle
High impedance state
Figure 20.2 D/A Converter Operation Example
DACR
write cycle
Conversion data (1)
t
DCONV
Conversion result (1)
Rev. 3.00 Mar 21, 2006 page 583 of 788
DADR0
write cycle
t
DCONV
Conversion data (2)
Section 20 D/A Converter
Conversion
result (2)
DACR
write cycle
REJ09B0300-0300