DS1302 Maxim Integrated Products, DS1302 Datasheet - Page 11

• Manufacturer Part Number: DS1302
• Description: IC TIMEKEEPER T-CHARGE 8-DIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Trickle-Chargerr

Specifications of DS1302

• Memory Size: 31B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: 3-Wire Serial
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

CAPACITANCE
(T
AC ELECTRICAL CHARACTERISTICS
(T
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
Note 13:
Input Capacitance
I/O Capacitance
Data to CLK Setup
CLK to Data Hold
CLK to Data Delay
CLK Low Time
CLK High Time
CLK Frequency
CLK Rise and Fall
CE to CLK Setup
CLK to CE Hold
CE Inactive Time
CE to I/O High Impedance
SCLK to I/O High Impedance
A
A
= +25°C)
= 0°C to +70°C or T
PARAMETER
PARAMETER
Limits at -40°C are guaranteed by design and are not production tested.
All voltages are referenced to ground.
I
I
CE, SCLK, and I/O all have 40kΩ pulldown resistors to ground.
Measured at V
Measured at V
Load capacitance = 50pF.
I
V
V
V
Typical values are at +25°C.
CC1T
CC1A
CC1S
CC
CC2
CC1
= V
and I
= 0V.
= 0V.
and I
and I
CC2
CC2T
CC2A
CC2S
, when V
A
are specified with I/O open, CE and SCLK set to a logic 0.
are specified with the I/O pin open, CE high, SCLK = 2MHz at V
IH
OH
are specified with CE, I/O, and SCLK open.
= -40°C to +85°C.) (Note 1)
= 2.0V or V
= 2.4V or V
SYMBOL
CC2
C
> V
C
I/O
I
CC1
t
t
t
t
t
t
t
t
R
CWH
t
CDH
CDD
t
t
CCH
IL
t
CDZ
CCZ
CLK
DC
CH
CC
CL
OL
, t
+ 0.2V; V
= 0.8V and 10ns maximum rise and fall time.
F
= 0.4V.
SYMBOL
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
MIN
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= V
CC1
TYP
10
15
, when V
11 of 13
(Note 6)
(Note 6)
(Notes 6, 7, 8)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
CONDITIONS
CC1
MAX
> V
CC2
.
UNITS
pF
pF
CC
1000
1000
MIN
200
280
250
250
240
DC
50
70
60
= 5V; SCLK = 500kHz, V
4
1
4
1
TYP
MAX
2000
800
200
500
280
280
0.5
2.0
70
70
CC
= 2.0V.
UNITS
MHz
ns
ns
ns
ns
ns
ns
μs
ns
μs
ns
ns