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XM20C64M-55 데이터시트 PDF




Xicor Inc.에서 제조한 전자 부품 XM20C64M-55은 전자 산업 및 응용 분야에서
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부품번호 XM20C64M-55 기능
기능 High Speed AUTOSTORE NOVRAM
제조업체 Xicor Inc.
로고 Xicor Inc. 로고


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XM20C64M-55 데이터시트, 핀배열, 회로
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




XM20C64M-55 pdf, 반도체, 판매, 대치품
XM20C64
ABSOLUTE MAXIMUM RATINGS*
Temperature Under Bias .................. –65°C to +125°C
Storage Temperature ....................... –65°C to +125°C
Voltage on any Pin with
Respect to VSS ............................................ –1V to +7V
Lead Temperature
(Soldering, 10 seconds) .............................. 300°C
*COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the module.
This is a stress rating only and the functional operation of
the module at these or any other conditions above those
indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect module reliability.
RECOMMENDED OPERATING CONDITIONS
Temperature
Military
Min.
–55°C
Max.
+125°C
3874 PGM T06
Supply Voltage
XM20C64
Limits
5V ±10%
3874 PGM T07
D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified.)
Symbol
Parameter
lCC1 VCC Active Current
ICC2
ISB
ILI
ILO
VIL(1)
VIH(1)
VOL
VOLAS
VOH
VCC Active Current
(AUTOSTORE)
VCC Standby Current
Input Leakage Current
Output Leakage Current
Input LOW Voltage
Input HIGH Voltage
Output LOW Voltage
AUTOSTORE Output
Voltage
Output HIGH Voltage
POWER-UP TIMING
Min.
Limits
Max.
100
10
Units
mA
mA
Test Conditions
NE = WE + VIH, CE = OE = VIL,
Address Inputs = TTL Inputs @ f = 20MHz
All I/Os = Open
All Inputs = VIH, All I/Os = Open
–0.5
2
1.5
10
10
0.8
VCC + 0.5
0.4
0.4
mA
µA
µA
V
V
V
V
All Inputs = VCC–0.3V All I/Os = Open
VIN = VSS to VCC
VIN = VSS to VCC, CE = VIH
IOL = 5mA
IOLAS = 1mA
2.4 V IOH = –4mA
3874 PGM T08.2
Symbol
Parameter
Max.
Units
tPUR
tPUST
Power-Up (VCC Min.) to RAM Operation
Power-Up (VCC Min.) to Store Operation
CAPACITANCE TA = +25°C, f = 1MHz, VCC = 5V.
Symbol
Test
Max.
500
5
Units
µs
ms
3874 PGM T09
Conditions
CI/O(2)
CIN(2)
Input/Output Capacitance
Input Capacitance
Notes: (1) VIL min. and VIH max. are for reference only and are not tested.
(2) This parameter is periodically sampled and not 100% tested.
40
24
pF VI/O = 0V
pF VIN = 0V
3874 PGM T10.1
4

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XM20C64M-55 전자부품, 판매, 대치품
XM20C64
Array Recall Timing
Symbol
Parameter
Limits
Min.
Max.
Units
tRCC
tRCP
tRWE
Array Recall Time
Recall Strobe Pulse Width
Delay From WE HIGH to Recall
50
0
10 µs
ns
ns
3874 PGM T05.1
Note: The recall sequence must be repeated for each memory component individually. This is accomplished by sequencing through the
Array Recall Cycle with all four combinations of A11, and A12.
Array Recall Cycle
ADDRESS
NE
tRCC
tRCP
OE
tRWE
WE
CE
DATA I/O
EQUIVALENT TEST LOAD CIRCUIT
5V
OUTPUT
735
318
30pF
3874 FHD F07.2
3874 FHD F06.1
SYMBOL TABLE
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
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부품번호상세설명 및 기능제조사
XM20C64M-55

High Speed AUTOSTORE NOVRAM

Xicor Inc.
Xicor Inc.

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