DS1302
CAPACITANCE
PARAMETER
Input Capacitance
I/O Capacitance
Crystal Capacitance
SYMBOL
C
I
C
I/O
C
X
MIN
TYP
10
15
6
MAX
(t
A
= 25ºC)
UNITS
pF
pF
pF
NOTES
AC ELECTRICAL CHARACTERISTICS
(0ºC to 70ºC or -40°C to +85°C; V
CC
= 2.0 to 5.5V*)
PARAMETER
Data to CLK Setup
CLK to Data Hold
CLK to Data Delay
CLK Low Time
CLK High Time
CLK Frequency
CLK Rise and Fall
RST
to CLK Setup
CLK to
RST
Hold
RST
Inactive Time
RST
to I/O High Z
SCLK to I/O High Z
*Unless otherwise noted.
SYMBOL
V
CC
=2.0V
t
DC
V
CC
=5V
V
CC
=2.0V
t
CDH
V
CC
=5V
V
CC
=2.0V
t
CDD
V
CC
=5V
V
CC
=2.0V
t
CL
V
CC
=5V
V
CC
=2.0V
t
CH
V
CC
=5V
V
CC
=2.0V
t
CLK
V
CC
=5V
V
CC
=2.0V
t
R
, t
F
V
CC
=5V
V
CC
=2.0V
t
CC
V
CC
=5V
V
CC
=2.0V
t
CCH
V
CC
=5V
V
CC
=2.0V
t
CWH
V
CC
=5V
V
CC
=2.0V
t
CDZ
V
CC
=5V
V
CC
=2.0V
t
CCZ
V
CC
=5V
MIN TYP
200
50
280
70
1000
250
1000
250
DC
4
1
240
60
4
1
MAX
UNITS NOTES
ns
ns
7
7
7, 8, 9
7
7
7
800
200
ns
ns
ns
0.5
2.0
2000
500
MHz
ns
µs
ns
µs
7
7
7
7
7
280
70
280
70
ns
ns
10 of 14
TGS [ Tiger Electronic Co.,Ltd ]
