cxp82852 Sony Electronics, cxp82852 Datasheet - Page 14

• Manufacturer Part Number: cxp82852
• Description: Cmos 8-bit Single Chip Microcomputer
• Manufacturer: Sony Electronics

Fig. 1. Clock timing
Fig. 2. Clock applied conditions
Fig. 3. Event count clock timing
AC Characteristics
(1) Clock timing
1
System clock frequency
System clock input pulse width
System clock input rise time,
fall time
Event count input clock
pulse width
Event count input clock
rise time, fall time
System clock frequency
Event count input
pulse width
Event count input rise time,
fall time
t
clock registor (CLC: 00FE
t
sys indicates the three values below according to the upper two bits (CPU clock selection) of the control
sys (ns) = 2000/fc (upper two bits = "00"), 4000/fc (upper two bits = "01"), 16000/fc (upper two bits = "11")
EXTAL
TEX
EC0
EC1
Item
C
Crystal oscillation
Ceramic oscillation
1
EXTAL
H
).
XTAL
Symbol
f
t
t
t
t
t
t
t
t
f
t
t
t
t
C
C
XL
XH
CR
CF
EH
EL
ER
EF
TL
TH
TR
TF
C
2
t
XTAL
EXTAL
EXTAL
EXTAL
EC0,
EC1
EC0,
EC1
TEX
TX
TEX
TEX
XH
t
t
EH
TH
Pin
EXTAL
External clock
(Ta = –20 to +75°C, V
– 14 –
74HC04
Fig. 1, Fig. 2
Fig. 1, Fig. 2
External clock drive
Fig. 1, Fig. 2
External clock drive
Fig. 3
Fig. 3
V
Fig. 2 (32kHz clock
applied condition)
Fig. 3
Fig. 3
DD
1/fc
t
CF
XTAL
t
t
= 2.7 to 5.5V
EF
TF
Conditions
32kHz clock applied condition
Crystal oscillation
t
XL
t
t
EL
TL
C
1
DD
TEX
t
= 4.5 to 5.5V, Vss = 0V reference)
sys + 50
37.5
Min.
10
1
t
CR
TX
1
t
t
ER
TR
CXP82832/82840/82852/82860
32.768
V
0.4V
C
Typ.
DD
2
0.8V
0.2V
– 0.4V
DD
DD
Max.
200
10
20
20
MHz
Unit
kHz
ms
ms
ns
ns
ns
µs