Datasheet

Table Of Contents
Section 25 Electrical Characteristics (H8S/2215R)
Page 760 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Condition A Condition B
Item Symbol Min. Max. Min. Max. Unit Test Conditions
External clock output
stabilization delay time
t
DEXT
500 — 500 — µs Figure 25.4
USB operating clock (48
MHz) stabilization time
t
OSC3
8 — 8 — ms
USB operating clock (48
MHz) oscillator frequency
f
48
48 4.8 MHz
V
CC
= 3.0 V to
3.6 V
USB operating clock (48
MHz) cycle time
f
48
20.8 20.8 ns
t
Cr
t
CL
t
Cf
t
CH
φ
t
cyc
Figure 25.3 System Clock Timing
t
OSC1
t
OSC1
EXTAL
V
CC
STBY
RES
φ
t
DEXT
t
DEXT
Figure 25.4 Oscillation Stabilization Timing