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PDF ( 数据手册 , 数据表 ) XM20C64PI-55

零件编号 XM20C64PI-55
描述 High Speed AUTOSTORE NOVRAM
制造商 Xicor Inc.
LOGO Xicor Inc. LOGO 


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XM20C64PI-55 数据手册, 描述, 功能
XM20C64
64K
XM20C64
High Speed AUTOSTORENOVRAM
8K x 8
FEATURES
High Speed: tAA = 55ns
NO Batteries!!
Low Power CMOS
AUTOSTORENOVRAM
—Automatically Stores RAM data to E2PROM
upon Power-fail Detection
Open Drain AUTOSTORE Output Pin
—Provides Interrupt or Status Information
—Linkable to System Reset Circuitry
Auto Recall
—Automatically Recalls E2PROM Data During
Power-on
Fully Decoded Module
Full Military Temperature Range
— –55°C to +125°C
High Reliability
—Endurance: 1,000,000 Nonvolatile Store Cycles
—Data Retention: 100 Years
ESD Protection
2KV All Pins
Also Available in 66 Pin PUMA Package
FUNCTIONAL DIAGRAM
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 E2PROM when VCC 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.
PIN CONFIGURATION
NE
OE
WE
A11 2 A0
A12 3 A1
CE
4
Y0
5
Y1
6
Y2
7
Y3
1
AUTOSTORE
AUTOSTORE™ NOVRAM is a trademark of Xicor, Inc.
©Xicor, Inc. 1991, 1995, 1996 Patents Pending
3874-1.6 6/20/96 T0/C2/D0 NS
2
NE
25
OE
31
WE
23
CE
2
NE
25
OE
31
WE
23
CE
2
NE
25
OE
31
WE
23
CE
2
NE
25
OE
31
WE
23
CE
A0–A10
I/O
30
A0–A10
I/O
30
A0–A10
I/O
30
A0–A10
I/O
30
1
NE
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A0–A10
28 VCC
27 WE
26 AS
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 I/O7
18 I/O6
17 I/O5
16 I/04
15 I/O3
3874 FHD F02.1
I/O0–I/O7
3874 FHD F01
Characteristics subject to change without notice







XM20C64PI-55 pdf, 数据表
XM20C64P
PIN CONFIGURATION
1 12 23
I/O8 WE2 I/O15
I/O9 CE2 I/O14
I/O10 GND I/O13
AS I/O11 I/O12
NE A10 OE
NC NC NC
NC NC WE1
NC VCC I/O7
I/O0 CE1 I/O6
I/O1 NC I/O5
I/O2 I/O3 I/O4
11 22 33
PACKAGING INFORMATION
1.09+/-.010 SQ
.050 TYP
.100 TYP
PIN #1
IDENTIFIER
(NOT CHAMFERED)
.100 TYP
.600 TYP
34 45 56
I/O24 VCC I/O31
I/O25 CE4 I/O30
I/O26 WE4 I/O29
A6 I/O27 I/O28
A7 A3 A0
A15 A4 A1
A8 A5 A2
A9 WE3 I/O23
I/O16 CE3 I/O22
I/O17 GND I/O21
I/O18 I/O19 I/O20
44 55 66
3874 ILL F10
.149+/-.015
.180
.320 MAX
.050
.018
0.15
ALL MEASUREMENTS IN INCHES
.040
.410
8
.164
.130
3874 ILL F11














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