R
×
5C348A/B
AC ELECTRICAL CHARACTERISTICS
Unless otherwise specified : Vss=0V,Topt=–40 to +85˚C
Input/output condition : V
IH
=0.8
×
V
DD
, V
IL
=0.2
×
V
DD
, V
OH
=0.8
×
V
DD
, V
OL
=0.2
×
V
DD
, C
L
=50pF
Symbol
Item
Conditions
V
DD
≥2.0V
MIN.
TYP.
MAX.
MIN.
V
DD
≥4.5
TYP.
MAX.
Unit
t
CES
t
CEH
t
CR
f
SCLK
t
CKH
t
CKL
t
CKS
t
RD
t
RZ
t
CEZ
t
DS
t
DH
CE Set-up Time
CE Hold Time
CE Recovery Time
SCLK Clock Frequency
SCLK Clock “H” Time
SCLK Clock “L” Time
SCLK Set-up Time
Data Output Delay Time
Data Output Floating Time
Data Output Floating Time
After Falling of CE
Input Data Set-up Time
Input Data Hold Time
400
400
62
1.0
400
400
200
300
300
300
200
200
200
200
62
2.0
200
200
100
150
150
150
100
100
ns
ns
µs
MHz
ns
ns
ns
ns
ns
ns
ns
ns
t
CKH
t
CKL
CE
t
CEH
t
CKS
SCLK
t
CES
t
CR
t
DS
SI
t
DH
t
CEZ
SO
t
RD
t
RD
t
RZ
*
)
For read/write timing, see “USAGES, 1.5 Considerations in Reading and Writing Time Data”.
6
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
