ml675050 Oki Semiconductor, ml675050 Datasheet - Page 55

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

ELECTRICAL CHARACTERISTICS (AC CHARACTERISTICS)
(20) SPI Access Timing (1/4)
OKI Semiconductor
Parameter
Serial clock cycle time
Serial clock “H”/”L” time
Data delay time (output)
Data setup time (input)
Data hold time (input)
SSN-SCK lead time
SCK-SSN time lag
SSN “H” minimum guaranteed time
SPI bus input-outputrise time/fall
time
Master Mode Timing Characteristics
*1: Because the output delay of SCK increases at a rate of 0.4 ns/10 pF, the data setup time increases
*2: The actual value will be a negative value due to external load, but input so as to guarantee data hold
*3: t
accordingly.
time 0.
PC
is the cycle time of APB_CLK.
Symbol
t
t
t
t
t
t
t
t
t
sck
wsck
dd
sd
hd
lead
lag
wssh
r
, t
f
Condition
CL=30pF
Min
2 × t
1 × t
0
0.5 × t
0.5 × t
1 × t
(*2)
PC
PC
sck
sck
sck
(*3)
(*3)
Typ
Max
2046 × t
1023 × t
25
25
1.5 × t
1.5 × t
511 × t
25
(*1)
sck
sck
sck
FEDL675050-02
PC
PC
ML675050
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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