DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 661

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

15.4.3
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
1, then starts A/D conversion. Figure 15.4 shows the A/D conversion timing. Table 15.3 indicates
the A/D conversion time.
As indicated in figure 15.4, the A/D conversion time (t
(t
conversion time therefore varies within the ranges indicated in table 15.3.
In scan mode, the values given in table 15.3 apply to the first conversion time. The values given in
table 15.4 apply to the second and subsequent conversions. In either case, bits CKS1 and CKS0 in
ADCR should be set so that the conversion time is within the ranges indicated by the A/D
conversion characteristics.
SPL
). The length of t
Input Sampling and A/D Conversion Time
D
Address
Write signal
Input sampling
timing
ADF
Pφ
[Legend]
(1):
(2):
t
t
t
D:
SPL
CONV
varies depending on the timing of the write access to ADCSR. The total
:
: A/D conversion time
ADCSR write cycle
ADCSR address
A/D conversion start delay time
Input sampling time
Figure 15.4 A/D Conversion Timing
(1)
(2)
t
D
t
SPL
D
) passes after the ADST bit in ADCSR is set to
t
CONV
CONV
) includes t
Rev. 2.00 Jun. 28, 2007 Page 635 of 864
D
and the input sampling time
Section 15 A/D Converter
REJ09B0341-0200