DS1390 Maxim, DS1390 Datasheet - Page 6

• Manufacturer Part Number: DS1390
• Description: The low-voltage serial-peripheral interface (SPI™) DS1390/DS1391/DS1394 and the low-voltage 3-wire DS1392/DS1393 real-time clocks (RTCs) are clocks/calendars that provide hundredths of a second, seconds, minutes, hours, day, date, month, and ye
• Manufacturer: Maxim

Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
AC ELECTRICAL CHARACTERISTICS—3-WIRE INTERFACE
(V
AC ELECTRICAL CHARACTERISTICS
(V
6
SCLK Frequency (Note 13)
Data to SCLK Setup
SCLK to Data Hold
SCLK to Data Valid (Notes 13,
14, 15)
SCLK Low Time (Note 13)
SCLK High Time (Note 13)
SCLK Rise and Fall
CS to SCLK Setup
SCLK to CS Hold
CS Inactive Time (Note 13)
CS to Output High Impedance
Pushbutton Debounce
Reset Active Time
Oscillator Stop Flag (OSF) Delay
CC
CC
_____________________________________________________________________
= V
= V
CC(MIN)
CC(MIN)
PARAMETER
PARAMETER
to V
to V
CC(MAX)
CC(MAX)
, T
, T
A
A
= -40°C to +85°C.) (Note 1) (Figures 3, 4)
= -40°C to +85°C, unless otherwise noted.) (Note 1)
SYMBOL
SYMBOL
f
t
t
PB
t
t
t
t
SCLK
t
CDH
CDD
R
CCH
CWH
CDZ
t
t
t
t
t
DC
CH
CC
RST
OSF
CL
, t
DB
F
2.7V
1.71V
(Notes 13, 14)
(Notes 13, 14)
2.7V
1.71V
2.7V
1.71V
2.7V
1.71V
(Note 13)
(Note 13)
2.7V
1.71V
(Note 13, 14)
(Note 16)
V
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
5.5V
5.5V
5.5V
5.5V
5.5V
1.89V
1.89V
1.89V
1.89V
1.89V
CONDITIONS
CONDITION
MIN
110
400
110
400
400
100
400
500
MIN
30
30
0
0
TYP
TYP
160
160
100
MAX
MAX
160
200
200
200
80
40
4
1
UNITS
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
ms