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S1230ABP-70-IND fiches techniques PDF

Dallas Semiconducotr - 256k Nonvolatile SRAM

Numéro de référence S1230ABP-70-IND
Description 256k Nonvolatile SRAM
Fabricant Dallas Semiconducotr 
Logo Dallas Semiconducotr 





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S1230ABP-70-IND fiche technique
www.dalsemi.com
FEATURES
10 years minimum data retention in the
absence of external power
Data is automatically protected during power
loss
Replaces 32k x 8 volatile static RAM,
EEPROM or Flash memory
Unlimited write cycles
Low-power CMOS
Read and write access times as fast as 70 ns
Lithium energy source is electrically
disconnected to retain freshness until power is
applied for the first time
Full ±10% VCC operating range (DS1230Y)
Optional ±5% VCC operating range
(DS1230AB)
Optional industrial temperature range of
-40°C to +85°C, designated IND
JEDEC standard 28-pin DIP package
New PowerCap Module (PCM) package
- Directly surface-mountable module
- Replaceable snap-on PowerCap provides
lithium backup battery
- Standardized pinout for all nonvolatile
SRAM products
- Detachment feature on PowerCap allows
easy removal using a regular screwdriver
DS1230Y/AB
256k Nonvolatile SRAM
PIN ASSIGNMENT
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC
27 WE
26 A13
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 DQ7
18 DQ6
17
DQ5
16 DQ4
15 DQ3
28-Pin ENCAPSULATED PACKAGE
740-mil EXTENDED
NC
NC
NC
NC
VCC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
1
2
3
4
5
6
7
8
9
10
11
12
13 GND VBAT
14
15
16
17
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
34-Pin POWERCAP MODULE (PCM)
(USES DS9034PC POWERCAP)
NC
NC
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
PIN DESCRIPTION
A0 - A14
- Address Inputs
DQ0 - DQ7
- Data In/Data Out
CE - Chip Enable
WE - Write Enable
OE - Output Enable
VCC
GND
- Power (+5V)
- Ground
NC - No Connect
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