HD64F3642AHV Datasheet, PDF (423/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 13 Electrical Characteristics
Table 13.16 Control Signal Timing
V_CC = 4.0 V to 5.5 V, V_SS = 0.0 V, T_a = –20°C to +75°C, unless otherwise specified.
Item
System clock
oscillation frequency
Symbol
fOSC
OSC clock (φOSC)
cycle time
tOSC
System clock (φ)
tcyc
cycle time
Subclock oscillation fW
frequency
Watch clock (φW)
tW
cycle time
Subclock (φSUB)
cycle time
tsubcyc
Instruction cycle
time
Oscillation
trc
stabilization time
(crystal resonator)
Oscillation
trc
stabilization time
(ceramic resonator)
Oscillation stabilization trc
time
External clock high tCPH
width
External clock low
tCPL
width
External clock rise
tCPr
time
External clock fall
tCPf
time
Pin RES low width
tREL
Applicable
Values
Pins
Min Typ Max Unit Test Condition
Reference
Figure
OSC1, OSC2 2 
2
OSC1, OSC2 62.5 
100 
2

16
10
1000
1000
128
25.6
MHz
ns
tOSC
µs
VCC = 2.5 V to 5.5 V
*₁
VCC = 2.5 V to 5.5 V Figure 13.1
VCC = 2.5 V to 5.5 V ^*1
X1, X2
 32.768  kHz VCC = 2.5 V to 5.5 V
X1, X2
 30.5  µs VCC = 2.5 V to 5.5 V
2
8
tW VCC = 2.5 V to 5.5 V ^*2
2
OSC1, OSC2  

OSC1, OSC2  

X1, X2

 tcyc VCC = 2.5 V to 5.5 V
tsubcyc
40 ms
60
VCC = 2.5 V to 5.5 V
20 ms
40
VCC = 2.5 V to 5.5 V
2
s
VCC = 2.5 V to 5.5 V
OSC1
OSC1
20 
40 
20 
40 

 ns
Figure 13.1

VCC = 2.5 V to 5.5 V
 ns

VCC = 2.5 V to 5.5 V
15 ns VCC = 2.5 V to 5.5 V

15 ns VCC = 2.5 V to 5.5 V
RES
10 
 tcyc VCC = 2.5 V to 5.5 V Figure 13.2
Rev. 6.00 Sep 12, 2006 page 401 of 526
REJ09B0326-0600