R×5C348A/B
AC ELECTRICAL CHARACTERISTICS
Unless otherwise specified : Vss=0V,Topt=–40 to +85˚C
Input/output condition : VIH=0.8×VDD, VIL=0.2×VDD, VOH=0.8×VDD, VOL=0.2×VDD, CL=50pF
VDD≥2.0V
TYP. MAX. MIN.
VDD≥4.5
TYP. MAX.
Symbol
Item
CE Set-up Time
Conditions
Unit
MIN.
tCES
tCEH
tCR
400
200
200
62
ns
ns
CE Hold Time
400
62
CE Recovery Time
µs
fSCLK
tCKH
tCKL
tCKS
tRD
SCLK Clock Frequency
SCLK Clock “H” Time
SCLK Clock “L” Time
SCLK Set-up Time
1.0
2.0
MHz
ns
400
400
200
200
200
100
ns
ns
Data Output Delay Time
Data Output Floating Time
300
300
150
150
ns
tRZ
ns
Data Output Floating Time
After Falling of CE
tCEZ
300
150
ns
tDS
Input Data Set-up Time
Input Data Hold Time
200
200
100
100
ns
ns
tDH
tCKH
tCKL
CE
tCEH
tCR
tCKS
tCES
SCLK
tDS
tDH
SI
tCEZ
SO
tRD
tRD
tRZ
)
For read/write timing, see “USAGES, 1.5 Considerations in Reading and Writing Time Data”.
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RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
