DF2268FA13V Renesas Electronics America, DF2268FA13V Datasheet - Page 519

• Manufacturer Part Number: DF2268FA13V
• Description: IC H8S/2268 MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2268FA13V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 13MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

16.5
16.5.1
If this LSI enters a power-down mode such as software standby, watch, sub-active, sub-sleep, and
module stop modes while D/A conversion is enabled, the D/A cannot retain analog outputs within
the given D/A absolute accuracy although it retains digital values. The analog power supply
current is approximately the same as that during D/A conversion. To reduce analog power supply
current in power-down mode, clear the DAOE0, DAOE1 and DAE bits to 0 to disable D/A
outputs before entering the mode.
16.5.2
It is possible to enable/disable the D/A converter operation using the module stop control register,
the D/A converter does not operate by the initial value of the register. The register can be accessed
by releasing the module stop mode. For more details, see section 22, Power-Down Modes.
Legend:
t
DCONV
Usage Notes
φ
ADRES
DADR0
DAOE0
DA 0
Setting for Module Stop Mode
Analog Power Supply Current in Power-Down Mode
: D/A conversion time
High impedance state
DADR0
write cycle
Figure 16.2 D/A Converter Operation Example
DACR
write cycle
Conversion data (1)
t DCONV
Conversion result (1)
Rev. 5.00 Sep. 01, 2009 Page 467 of 656
DADR0
write cycle
t DCONV
Conversion data (2)
Section 16 D/A Converter
Conversion result (2)
DACR
write cycle
REJ09B0071-0500