DS1554WP-120IND Maxim Integrated Products, DS1554WP-120IND Datasheet - Page 15

• Manufacturer Part Number: DS1554WP-120IND
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1554WP-120IND

• Function: Clock, Calendar, NV Timekeeping RAM, Watchdog Timekeeper
• Rtc Memory Size: 32768 B
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Rtc Bus Interface: Parallel
• Package / Case: PowerCap
• 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 )
Power-Down
V
V
V
V
Expected Data-Retention Time
(Oscillator On)
CE
CC
CC
CC
CC
PF
or
= 5.0V 10%, T
to
Fall Time: V
Fall Time: V
Rise Time: V
WE
RST
PARAMETER
at V
High
IH
, Before
PF(MAX)
PF(MIN)
PF(MIN)
A
to V
= Over the operating range.)
to V
to V
SO
PF(MAX)
PF(MIN)
SYMBOL
t
t
t
t
REC
t
t
DR
PD
FB
R
F
DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
15 of 18
(Notes 6, 7)
CONDITIONS
MIN
300
10
40
10
0
0
TYP
MAX
200
UNITS
years
ms
s
s
s
s