RS5C313 RICOH Co.,Ltd., RS5C313 Datasheet - Page 6

• Manufacturer Part Number: RS5C313
• Description: Ultra-compact Real-time Clock Ic
• Manufacturer: RICOH Co.,Ltd.

6
RS5C313
AC CHARACTERISTICS
TIMING CHART
Symbol
*
Read cycle
Write cycle
) The ability that is fair in “H” or “L” slanted line department
t
t
t
t
t
t
t
t
t
t
t
t
CES
CEH
CR
SCK
CKH
CKL
CKS
RE
RR
RZ
DS
DH
CE set-up time
CE hold time
CE recovery time
SCLK clock cycle
SCLK “H” clock time
SCLK “L” clock time
SCLK clock set-up time
Data output start time (from
Data output delay time (from
Output floating time
Input data set-up time
Input data hold time
Input/output conditions
CE
SCLK
SIO
SIO
V
V
V
V
IH
IL
OH
OL
=
= 0.2
= 0.8
= 0.2
0.8
×
×
×
×
Item
V
V
V
V
DD
DD
DD
DD
t
CKS
of SCLK)
of SCLK)
t
RE
t
CES
t
DS
t
CKH
Write Data
Read Data
t
SCK
t
DH
t
MIN.
CKL
V
175
175
350
350
175
175
60
50
50
DD
=5V±10%
t
RR
MAX.
120
120
120
V
MIN.
300
300
600
600
300
300
100
80
50
DD
=3V±10%
MAX.
200
200
200
t
t
CEH
RZ
(V
SS
=0V, Topt=–30 to +80˚C, C
MIN.
200
200
400
400
200
200
V
80
60
50
DD
=5V±20%
t
CR
MAX.
135
135
135
L
Unit
=50pF)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns