DS1747WP-120IND+ Maxim Integrated Products, DS1747WP-120IND+ Datasheet - Page 13

• Manufacturer Part Number: DS1747WP-120IND+
• Description: IC RTC RAM Y2K 3.3V 120NS 34-PCM
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1747WP-120IND+

• Memory Size: 4M (512K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 34-PowerCap™ Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

POWER-UP/DOWN AC CHARACTERISTICS (5V)
(V
POWER-UP/DOWN TIMING (5V DEVICE)
Before Power-Down
V
V
V
V
V
Power-Up Recover Time
VPF to RST High (PowerCap
Only)
Expected Data-Retention Time
(Oscillator ON)
CE or WE at V
CC
CC
PF(MIN)
CC
CC
PF
(
= 5.0V 10%, T
Fall Time: V
MAX)
Fall Time: V
Rise Time: V
PARAMETER
H
PF(MIN)
PF(MAX)
PF(MIN
A
= Over the Operating Range.)
) to
to V
to
SO
SYMBOL
t
t
t
t
REC
t
t
DR
PD
FB
R
F
DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
13 of 16
MIN
300
10
10
0
0
TYP
MAX
35
UNITS
years
ms
s
s
s
s
NOTES
5, 6