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XM20C64PMHR-55 Datasheet

  • XM20C64PMHR-55

  • High Speed AUTOSTORE⑩ NOVRAM

  • 62.66KB

  • 11頁

  • XICOR   XICOR

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XM20C64
64K
XM20C64
High Speed AUTOSTORE
鈩?/div>
NOVRAM
8K x 8
FEATURES
DESCRIPTION
The XM20C64 is a high speed nonvolatile RAM Module.
It is comprised of four Xicor X20C16 high speed
NOVRAMs, a high speed decoder and decoupling
capacitors mounted on a co-fired multilayered Ceramic
substrate. The XM20C64 is configured 8K x 8 and is fully
decoded. The module is a 28-lead DIP conforming to the
industry standard pinout for SRAMs.
The XM20C64 fully supports the AUTOSTORE feature,
providing hands-off automatic storing of RAM data
into E
2
PROM when V
CC
falls below the AUTOSTORE
threshold.
The XM20C64 is a highly reliable memory component,
supporting unlimited writes to RAM, a minimum 1,000,000
store cycles and a minimum 100 year data retention.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
High Speed: t
AA
= 55ns
NO Batteries!!
Low Power CMOS
AUTOSTORE
鈩?/div>
NOVRAM
鈥擜utomatically Stores RAM data to E
2
PROM
upon Power-fail Detection
Open Drain AUTOSTORE Output Pin
鈥擯rovides Interrupt or Status Information
鈥擫inkable to System Reset Circuitry
Auto Recall
鈥擜utomatically Recalls E
2
PROM Data During
Power-on
Fully Decoded Module
Full Military Temperature Range
鈥?鈥?5
擄
C to +125
擄
C
High Reliability
鈥擡ndurance: 1,000,000 Nonvolatile Store Cycles
鈥擠ata Retention: 100 Years
ESD Protection
鈥?/div>
鈮?/div>
2KV All Pins
Also Available in 66 Pin PUMA Package
FUNCTIONAL DIAGRAM
2
25
31
23
PIN CONFIGURATION
NE
A0鈥揂10
NE
OE
WE
NE
OE
WE
CE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
AS
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/04
I/O3
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
I/O
30
2
A11
A12
2
3
A0
A1
Y0
Y1
Y2
Y3
CE
1
4
5
6
7
2
25
31
23
25
31
23
NE
OE
WE
CE
A0鈥揂10
I/O
30
NE
OE
WE
CE
A0鈥揂10
I/O
30
2
25
31
23
AUTOSTORE
AUTOSTORE鈩?NOVRAM is a trademark of Xicor, Inc.
漏Xicor, Inc. 1991, 1995, 1996 Patents Pending
3874-1.6 6/20/96 T0/C2/D0 NS
3874 FHD F02.1
NE
OE
WE
CE
A0鈥揂10
A0鈥揂10
I/O
30
I/O0鈥揑/O7
3874 FHD F01
1
Characteristics subject to change without notice

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