cxp85452 Sony Electronics, cxp85452 Datasheet - Page 14

• Manufacturer Part Number: cxp85452
• Description: Cmos 8-bit Single Chip Microcomputer
• Manufacturer: Sony Electronics

(2) Serial transfer
Note) The load of SCK output mode and SO output delay time is 50pF + 1TTL.
Fig. 4. Serial transfer timing
SCK cycle time
SCK
high and low level widths
SI input set-up time
(for SCK ↑)
SI hold time
(for SCK ↑)
SCK ↓ → SO delay time
Item
SCK
SI
SO
Symbol
t
t
t
t
t
t
KCY
KH
KL
SIK
KSI
KSO
SCK
SCK
SI
SI
SO
t
KSO
Pin
t
KL
Input mode
Output mode
SCK input mode
SCK output mode
SCK input mode
SCK output mode
SCK input mode
SCK output mode
SCK input mode
SCK output mode
0.8V
0.2V
(Ta = –20 to +75°C, V
Condition
t
Input data
– 14 –
SIK
DD
DD
t
KCY
Output data
t
KSI
0.8V
0.2V
t
4000/fc – 50
KH
DD
DD
8000/fc
DD
1000
Min.
400
100
200
200
100
= 4.5 to 5.5V, Vss = 0V reference)
0.8V
0.2V
DD
DD
Max.
200
100
CXP85452/85460
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns