DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 761

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 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: HD64F2238RTF6; HD64F2238RTF6

17.5.3
The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog
input when the A/D conversion start delay time (t
starts conversion. Figure 17.5 shows the A/D conversion timing. Table 17.3 shows the A/D
conversion time.
As indicated in figure 17.5, the A/D conversion time (t
(t
conversion time therefore varies within the ranges indicated in table 17.3.
In scan mode, the values given in table 17.3 apply to the first conversion time. The values given in
table 17.4 apply to the second and subsequent conversions.
SPL
State of channel 3
State of channel 2
State of channel 0
State of channel 1
). The length of t
Notes:
ADDRA
ADDRB
ADDRC
ADDRD
ADST
ADF
Input Sampling and A/D Conversion Time
(AN3)
(AN2)
1. Vertical arrows indicate instructions executed by software.
2. Data currently being converted is ignored.
(AN0)
(AN1)
Idle
D
varies depending on the timing of the write access to ADCSR. The total
Figure 17.4 Example of A/D Converter Operation
(Scan Mode, Channels AN0 to AN2 Selected)
Idle
Idle
A/D conversion 1
Set *
1
A/D conversion 2
Continuous A/D conversion
Idle
A/D conversion result 1
D
) has passed after the ADST bit is set to 1, then
A/D conversion 3
Idle
CONV
Rev. 6.00 Mar. 18, 2010 Page 699 of 982
) includes t
Idle
A/D conversion time
A/D conversion 4
A/D conversion result 2
A/D conversion result 3
D
and the input sampling time
Section 17 A/D Converter
A/D conversion 5 *
A/D conversion result 4
REJ09B0054-0600
2
Clear *
1
Idle
Idle
Idle
Clear *
1