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DS1248Y70IND Datasheet(PDF) 1 Page - Dallas Semiconductor

Part # DS1248Y70IND
Description  1024k NV SRAM with Phantom Clock
Download  21 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1248Y70IND Datasheet(HTML) 1 Page - Dallas Semiconductor

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112801
FEATURES
§ Real-time clock (RTC) keeps track of
hundredths of seconds, minutes, hours, days,
date of the month, months, and years
§ 128k x 8 NV SRAM directly replaces
volatile static RAM or EEPROM
§ Embedded lithium energy cell maintains
calendar operation and retains RAM data
§ Watch function is transparent to RAM
operation
§ Month and year determine the number of
days in each month; valid up to 2100
§ Full 10% operating range
§ Operating temperature range: 0°C to +70°C
§ Over 10 years of data retention in the
absence of power
§ Lithium energy source is electrically
disconnected to retain freshness until power
is applied for the first time
§ DIP Module only
§ Standard 32-pin JEDEC pinout
§ PowerCap
® Module Board only
- Surface mountable package for direct
connection to PowerCap containing
battery and crystal
- Replaceable battery (PowerCap)
- Pin for pin compatible with DS1244P
and DS1251P
PIN ASSIGNMENT
DS1248/DS1248P
1024k NV SRAM with Phantom Clock
www.maxim-ic.com
1
RST
2
3
A15
A16
NC
VCC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
NC
A14
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
34
NC
X1 GND VBAT
X2
34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
RST
13
1
2
3
4
5
6
7
8
9
10
11
12
14
31
32-Pin Encapsulated Package
740mil Flush
A14
A7
A5
A4
A3
A2
A1
A0
DQ1
DQ0
VCC
A15
NC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ5
DQ6
32
30
29
28
27
26
25
24
23
22
21
19
20
A16
A12
A6
DQ2
GND
15
16
18
17
DQ4
DQ3
PowerCap is a registered trademark of Dallas Semiconductor.


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