cxp81952 Sony Electronics, cxp81952 Datasheet - Page 21

• Manufacturer Part Number: cxp81952
• Description: Cmos 8-bit Single Chip Microcomputer
• Manufacturer: Sony Electronics

Serial transfer (CH1)
Note 1)
Note 2) The load of SCK1 output mode and SO1 output delay time is 50pF + 1TTL.
Serial transfer (CH1)
Note 1)
Note 2) The load of SCK1 output mode and SO1 output delay time is 50pF.
SCK1 cycle time
SCK1 high and low
level widths
SI1 input setup time
(against SCK1 )
SI1 input hold time
(against SCK1 )
SCK1
time
SCK1 cycle time
SCK1 high and low
level widths
SI1 input setup time
(against SCK1 )
SI1 input hold time
(against SCK1 )
SCK1
upper 2 bits (CPU clock selection).
t
upper 2 bits (CPU clock selection).
t
t
t
sys [ns] = 2000/fc (Upper 2 bits = "00"), 4000/fc (Upper 2 bits = "01"), 16000/fc (Upper 2 bits = "11")
sys [ns] = 2000/fc (Upper 2 bits = "00"), 4000/fc (Upper 2 bits = "01"), 16000/fc (Upper 2 bits = "11")
sys indicates three values according to the contents of the clock control register (address; 00FE
sys indicates three values according to the contents of the clock control register (address; 00FE
Item
Item
SO1 delay
SO1 delay time
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
KCY
KH
KL
SIK
KSI
KSO
KCY
KH
KL
SIK
KSI
KSO
SCK1
SCK1
SI1
SI1
SO1
SCK1
SCK1
SI1
SI1
SO1
Pin
Pin
Input mode
Output mode
Input mode
Output mode
SCK1 input mode
SCK1 output mode
SCK1 input mode
SCK1 output mode
SCK1 input mode
SCK1 output mode
Input mode
Output mode
Input mode
Output mode
SCK1 input mode
SCK1 output mode
SCK1 input mode
SCK1 output mode
SCK1 input mode
SCK1 output mode
– 21 –
Condition
Condition
(Ta = –20 to +75°C, V
(Ta = –20 to +75°C, V
4000/fc – 100
4000/fc – 150
2
2
t
t
t
t
t
t
sys + 100
sys + 200
sys + 100
sys + 200
sys + 200
sys + 200
8000/fc
8000/fc
Min.
Min.
100
200
100
100
200
100
DD
DD
= 4.5 to 5.5V, Vss = 0V)
= 3.0 to 3.6V, Vss = 0V)
t
t
sys + 200
sys + 250
Max.
Max.
100
125
CXP81952/81960
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
H
H
)
)