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DS1645AB-120-IND

Description
Non-Volatile SRAM Module, 128KX8, 120ns, CMOS,
Categorystorage    storage   
File Size101KB,12 Pages
ManufacturerDALLAS
Websitehttp://www.dalsemi.com
Download Datasheet Parametric View All

DS1645AB-120-IND Overview

Non-Volatile SRAM Module, 128KX8, 120ns, CMOS,

DS1645AB-120-IND Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerDALLAS
Reach Compliance Codeunknown
Maximum access time120 ns
Other features10 YEAR DATA RETENTION
JESD-30 codeR-XDIP-P32
JESD-609 codee0
memory density1048576 bit
Memory IC TypeNON-VOLATILE SRAM MODULE
memory width8
Number of functions1
Number of terminals32
word count131072 words
character code128000
Operating modeASYNCHRONOUS
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
organize128KX8
Package body materialUNSPECIFIED
encapsulated codeDIP
Encapsulate equivalent codeDIP32,.6
Package shapeRECTANGULAR
Package formIN-LINE
Parallel/SerialPARALLEL
power supply5 V
Certification statusNot Qualified
Maximum standby current0.005 A
Maximum slew rate0.085 mA
Maximum supply voltage (Vsup)5.25 V
Minimum supply voltage (Vsup)4.75 V
Nominal supply voltage (Vsup)5 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formPIN/PEG
Terminal pitch2.54 mm
Terminal locationDUAL
DS1645Y/AB
DS1645Y/AB
Partitionable 1024K NV SRAM
FEATURES
PIN ASSIGNMENT
NC
A16
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
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
A15
NC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
10 years minimum data retention in the absence of
external power
Data is automatically protected during power loss
Directly replaces 128K x 8 volatile static RAM
Write protects selected blocks of memory when pro-
grammed
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% V
CC
operating range (DS1645Y)
Optional +5% V
CC
operating range (DS1645AB)
Optional
industrial temperature range of -40
o
C to
o
C, designated IND
+85
NC
A15
A16
PFO
V
CC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
32-PIN ENCAPSULATED PACKAGE
740 MIL EXTENDED
JEDEC standard 32-pin DIP package
Low Profile Module (LPM) package
– Fits into standard 68–pin PLCC surface mount-
able socket
– 250 mil package height
– Power Fail Output (PFO) warns system of
impending V
CC
power failure
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
34–PIN LOW PROFILE MODULE (LPM)
NC
NC
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
ECopyright
1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
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