DS1744WP-120IND+ Maxim Integrated Products, DS1744WP-120IND+ Datasheet - Page 14
![IC RTC RAM Y2K 3.3V 120NS 34-PCM](/photos/6/58/65856/406-34-pcm_sml.jpg)
DS1744WP-120IND+
Manufacturer Part Number
DS1744WP-120IND+
Description
IC RTC RAM Y2K 3.3V 120NS 34-PCM
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAM/Y2Kr
Datasheet
1.DS1744W-120.pdf
(16 pages)
Specifications of DS1744WP-120IND+
Memory Size
256K (32K 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 CHARACTERISTICS (3.3V)
(V
Down
V
V
V
Expected Data-Retention Time
(Oscillator ON)
POWER-UP/DOWN WAVEFORM TIMING (3.3V DEVICE)
CAPACITANCE
(T
Capacitance On All Input Pins
Capacitance On All Output Pins
CE or WE at V
CC
CC
PF
CC
A
= +25°C)
to RST High
Fall Time: V
Rise Time: V
= 3.3V 10%, T
PARAMETER
PARAMETER
IH
PF(MAX)
PF(MIN)
, Before Power-
A
= Over the operating range.)
to V
to V
PF(MIN)
PF(MAX)
SYMBOL
SYMBOL
C
C
IN
O
DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
t
t
t
REC
t
PD
t
DR
R
F
14 of 16
MIN
MIN
300
10
0
0
TYP
TYP
MAX
14
10
MAX
35
UNITS
pF
pF
UNITS
years
ms
s
s
s
NOTES
NOTES
5, 6