DS1689 Maxim Integrated Products, DS1689 Datasheet - Page 29

• Manufacturer Part Number: DS1689
• Description: IC RTC SER W/NV RAM CTRL 28-DIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Serializedr

Specifications of DS1689

• Memory Size: 114B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

POWER-UP/POWER-DOWN TIMING—5V
(T
POWER-UP/POWER-DOWN TIMING—3V
(T
WARNING: Under no circumstances are negative undershoots, of any amplitude,
allowed when device is in battery-backup mode.
CAPACITANCE
(T
CS High to Power-Fail
Recovery at Power-Up
V
V
V
Expected Data Retention
CS High to Power-Fail
Recovery at Power-Up
V
V
Expected Data Retention
Input Capacitance
Output Capacitance
A
A
A
CC
CC
CC
CC
CC
= +25°C)
= +25°C)
= +25°C)
Slew Rate Power-Down
Slew Rate Power-Down
Slew Rate Power-Up
Slew Rate Power-Down
Slew Rate Power-Up
PARAMETER
PARAMETER
PARAMETER
4.5V ≥ V
3.0V ≥ V
4.0 ≤ V
3.0 ≤ V
2.5 ≤ V
SYMBOL
SYMBOL
t
t
t
t
t
t
REC
t
REC
CC
CC
CC
t
t
t
DR
t
DR
FB
PF
PF
R
CC
R
CC
F
F
SYMBOL
≤ 4.5V
≤ 4.0V
≤ 3.0V
≥ 4.0V
≥ 2.5V
C
C
OUT
IN
29 of 36
MIN
MIN
300
300
MIN
10
10
10
0
0
TYP
TYP
150
150
TYP
MAX
MAX
MAX
0
0
12
12
UNITS
UNITS
UNITS
years
years
ms
ms
µs
µs
µs
µs
µs
ns
ns
pF
pF
NOTES
NOTES
NOTES
13, 14
13, 14