DS1644-120 Maxim Integrated Products, DS1644-120 Datasheet - Page 13
![IC RAM TIMEKEEP NV 120NS 28-EDIP](/photos/6/58/65855/ds1225ab-200__sml.jpg)
DS1644-120
Manufacturer Part Number
DS1644-120
Description
IC RAM TIMEKEEP NV 120NS 28-EDIP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet
1.DS1644P-120.pdf
(14 pages)
Specifications of DS1644-120
Memory Size
256K (32K x 8)
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
28-DIP Module (600 mil), 28-EDIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
DS1644120
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1644-120
Manufacturer:
DALLAS
Quantity:
2 046
Part Number:
DS1644-120
Manufacturer:
DALLAS
Quantity:
20 000
Company:
Part Number:
DS1644-120+
Manufacturer:
Maxim
Quantity:
429
Part Number:
DS1644-120+
Manufacturer:
DALLAS
Quantity:
20 000
Company:
Part Number:
DS1644-120IND
Manufacturer:
DALLAS
Quantity:
6 100
Company:
Part Number:
DS1644-120IND
Manufacturer:
DALLAS
Quantity:
6 100
DS1644P WITH DS9034PCX ATTACHED
RECOMMENDED POWERCAP MODULE LAND PATTERN
13 of 14
PKG
DIM
A
B
C
D
E
F
G
PKG
DIM
A
B
C
D
E
INCHES
MIN
0.920
0.955
0.240
0.052
0.048
0.015
0.020
INCHES
MIN
-
-
-
-
-
NOM
0.925
0.960
0.245
0.055
0.050
0.020
0.025
NOM
1.050
0.826
0.050
0.030
0.112
DS1644/DS1644P
MAX
0.930
0.965
0.250
0.058
0.052
0.025
0.030
MAX
-
-
-
-
-