HD64F2638F20J Datasheet, PDF (1071/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 24 Electrical Characteristics
(1) Clock Timing
Table 24-27 lists the clock timing
Table 24-27 Clock Timing
Conditions: V_CC = 4.5 V to 5.5 V, PWMV_CC = 4.5 V to 5.5 V, AV_CC = 4.5 V to 5.5 V,
V_ref = 4.5 V to AV_CC, V_SS = PWMV_SS = PLLV_SS = AV_SS = 0 V,
T_a = –20°C to +75°C (regular specifications), T_a = –40°C to +85°C (wide-range
specifications)
Item
Clock cycle time
Clock high pulse width
Clock low pulse width
Clock rise time
Clock fall time
Clock oscillator settling time at reset
(crystal)
Clock oscillator settling time in
software standby (crystal)
(H8S/2639 Group)
Clock oscillator settling time in
software standby (crystal)
(H8S/2635 Group)
External clock output stabilization
delay time
Subclock oscillator frequency
Subclock (φSUB) cycle time
Symbol
tcyc
tCH
tCL
tCr
tCf
tOSC1
tOSC2
tDEXT
fSUB
tSUB
Condition
20MHz
Min. Max.
50
250
15
—
15
—
—
10
—
10
20
—
8
—
12
—
2
—
31.25 39.6
25.6 32.0
Unit
ns
ns
ns
ns
ns
ms
ms
ms
kHz
μs
Test Conditions
Figure 24-9
Figure 24-10
Figure 23A-3
Figure 23B-3
Figure 24-10
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 1021 of 1458