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HD64F2636F20 Datasheet, PDF (747/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series | |||
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 17 A/D Converter
Table 17-4 A/D Conversion Time (Single Mode)
CKS1 = 0
CKS1 = 0
CKS0 = 0
CKS0 = 1
CKS0 = 0
CKS0 = 1
Item
Symbol Min Typ Max Min Typ Max Min Typ Max Min Typ Max
A/D conversion start delay tD
18 â 33 10 â 17 6 â 9 4 â 5
Input sampling time
tSPL
â 127 â â 63 â â 31 â â 15 â
A/D conversion time
tCONV 515 â 530 259 â 266 131 â 134 67 â 68
Note: Values in the table are the number of states.
Table 17-5 A/D Conversion Time (Scan Mode)
CKS1
0
1
CKS0
0
1
0
1
Conversion Time (State)
512 (Fixed)
256 (Fixed)
128 (Fixed)
64 (Fixed)
17.4.4 External Trigger Input Timing
A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to 11 in
ADCR, external trigger input is enabled at the ADTRG pin. A falling edge at the ADTRG pin sets
the ADST bit to 1 in ADCSR, starting A/D conversion. Other operations, in both single and scan
modes, are the same as if the ADST bit has been set to 1 by software. Figure 17-6 shows the
timing.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 697 of 1458
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