h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 613

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

• With Crystal Resonator
Table 21.3 Standby Time Settings
Notes:
• With External Clock
STS2
0
0
0
0
1
1
1
1
The STS2 to STS0 bits must be specified appropriately so that the standby time (oscillation
stabilization time) is at least 8 ms. Table 21.3 shows the standby time determined by a
combination of the operating frequency and the STS2 to STS0 bit setting.
The PLL circuit stabilization time must be ensured. Specify 2-ms or more standby time.
*
STS1
0
0
1
1
0
0
1
1
Setting prohibited
: Recommended standby time
STS0
0
1
0
1
0
1
0
1
Standby Time
8192 states
16384 states
32768 states
65536 states
131072 states
262144 states
Reserved
16 states*
20
0.41
0.82
1.6
3.3
6.6
13.1
—
0.8
16
0.51
1.0
2.0
4.1
8.2
16.4
—
1.0
Operating Frequency (MHz)
12
0.65
1.3
2.7
5.5
10.9
21.8
—
1.3
Rev. 2.00 Dec. 05, 2005 Page 575 of 724
10
0.8
1.6
3.3
6.6
13.1
26.2
—
1.6
Section 21 Power-Down Modes
8.2
16.4
32.8
2.0
8
1.0
2.0
4.1
—
6
1.3
2.7
5.5
10.9
21.8
43.6
—
1.7
REJ09B0200-0200
4
2.0
4.1
8.2
16.4
32.8
65.6
—
4.0
Unit
ms
µs