RTC4573 Epson Company, RTC4573 Datasheet - Page 4

• Manufacturer Part Number: RTC4573
• Description: Serial RTC with Alarm and Timer
• Manufacturer: Epson Company

5. AC Characteristics
CLK clock cycle
CLK H Pulse Width
CLK L Pulse Width
CE setup time
CE hold time
CE recovery time
CLK hold time
Write DATA in setup time
Write DATA in hold time
Read DATA in delay time
Output disable delay time
rise and fall time
FOUT duty ratio
( 32.768kHz output )
CLK
Write Mode
CLK
DATA
C E
C E
Description
50
50
%
%
50
%
50%
t
CS
t
DS
Symbol
t
t
DH
t
t
Duty
CS
t
t
t
t
t
t
t
t
t
t
CKH
CLK
WH
WL
CS
CH
CR
DS
DH
RD
50%
RZ
RF
1200
MIN.
600
600
300
400
600
100
50
50
35
0
-
-
V
t
WL
DD
=3.0V±10%
TYP.
Page-4
-
-
-
-
-
-
-
-
-
-
-
-
t
WH
ReadMode
CLK
DATA
C E
MAX.
400
200
40
65
-
-
-
-
-
-
-
-
50
%
MIN.
600
300
300
150
200
300
t
50
50
50
40
50
RF
0
-
-
t
%
t
RD
CH
V
DD
t
t
CKH
RF
=5.0V±10%
( CL=50pF,Ta=-40 to 85
TYP.
50
-
-
-
-
-
-
-
-
-
-
-
-
90
10
%
t
%
%
CR
t
MAX.
RZ
200
100
60
20
-
-
-
-
-
-
-
-
90
10
%
%
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
°C
Hi-Z
Aug.1998
)