CXP84124 Sony Corporation, CXP84124 Datasheet - Page 12

• Manufacturer Part Number: CXP84124
• Description: CMOS 8-bit Single Chip Microcomputer
• Manufacturer: Sony Corporation

AC Characteristics
(1) Clock timing
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 clock
input pulse width
Event count input clock
rise time, fall time
1
t
control register (address: 00FE
t
sys indicates the three values below according to the upper two bits (CPU clock selection) of the clock
sys [ns] = 2000/fc (upper two bits = “00”), 4000/fc (upper two bits = “01”), 16000/fc (upper two bits = “11”)
EXTAL
Item
C
Crystal oscillation
Ceramic oscillation
EXTAL
1
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
XTAL
,
,
,
,
,
,
H
).
C
2
Fig. 2. Clock applied conditions
XTAL
EXTAL
EXTAL
EXTAL
EC0
EC1
EC0
EC1
TEX
TX
TEX
TEX
Pins
t
XH
Fig. 1. Clock timing
EXTAL
External clock
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
(Ta = –20 to +75°C, V
74HC04
– 12 –
= 2.7 to 5.5V
Conditions
1/fc
XTAL
t
CF
32kHz clock applied condition
Crystal oscillation
t
XL
C
1
TEX
t
DD
sys + 50
37.5
Min.
= 4.5 to 5.5V, Vss = 0V reference)
10
1
t
TX
CR
1
C
V
0.4V
32.768
2
DD
Typ.
– 0.4V
Max.
CXP84120/84124
200
10
20
20
MHz
Unit
kHz
ms
ms
ns
ns
ns
µs