DS1556-70IND Maxim Integrated Products, DS1556-70IND Datasheet - Page 15

• Manufacturer Part Number: DS1556-70IND
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1556-70IND

• Function: Clock, Calendar, NV Timekeeping RAM, Watchdog Timekeeper
• Rtc Memory Size: 131072 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Package / Case: eDIP
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

POWER-UP/DOWN CHARACTERISTICS—5V
(V
Figure 8. Power-Up/Down Waveform Timing (5V Device)
CE or WE at V
Power-Down
V
V
V
V
Expected Data-Retention Time
(Oscillator On)
CC
CC
CC
CC
PF
= 5.0V 10%, Over the Operating Range.)
to RST High
Fall Time: V
Fall Time: V
Rise Time: V
PARAMETER
IH
, Before
PF(MAX)
PF(MIN)
PF(MIN)
to V
to V
to V
SO
PF(MAX)
PF(MIN)
SYMBOL
t
t
t
t
REC
t
t
DR
PD
FB
R
F
15 of 18
DS1556 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM
(Notes 6, 7)
CONDITIONS
MIN
300
10
40
10
0
0
TYP
MAX
200
UNITS
years
ms
s
s
s
s