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X20C04 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Nonvolatile Static RAM - Xicor

भाग संख्या X20C04
समारोह Nonvolatile Static RAM
मैन्युफैक्चरर्स Xicor 
लोगो Xicor लोगो 
पूर्व दर्शन
1 Page
		
<?=X20C04?> डेटा पत्रक पीडीएफ

X20C04 pdf
X20C04
PIN CONFIGURATION
Plastic CERDIP
NE 1
28 VCC
NC 2
27 WE
A7 3
26 NC
A6 4
25 A8
A5 5
24 NC
A4 6
23 NC
A3 7 X20C04 22 OE
A2 8
21 NC
A1 9
20 CE
A0 10
I/O0 11
19 I/O7
18 I/O6
I/O1 12
17 I/O5
I/O2 13
16 I/O4
VSS 14
15 I/O3
LCC
PLCC
4 3 2 1 32 31 30
A6 5
A5 6
29 A8
28 NC
A4 7
A3 8
A2 9
A1 10
X20C04
(Top View)
27 NC
26 NC
25 OE
24 NC
A0 11
23 CE
NC 12
22 I/O7
I/O0
13 21
14 15 16 17 18 19 20
I/O6
PIN NAMES
Symbol
A0–A8
I/O0–I/O7
WE
CE
OE
NE
VCC
VSS
NC
Description
Address inputs
Data input/output
Write enable
Chip enable
Output enable
Nonvolatile enable
+5V
Ground
No connect
PIN DESCRIPTIONS
Addresses (A0–A8)
The Address inputs select an 8-bit memory location
during a read or write operation.
Chip Enable (CE)
The Chip Enable input must be LOW to enable all read/
write operations. When CE is HIGH, power consump-
tion is reduced.
Output Enable (OE)
The Output Enable input controls the data output buff-
ers and is used to initiate read and recall operations.
Output Enable LOW disables a store operation regard-
less of the state of CE, WE, or NE.
Data In/Data Out (I/O0–I/O7)
Data is written to or read from the X20C04 through the
I/O pins. The I/O pins are placed in the high impedance
state when either CE or OE is HIGH or when NE is LOW.
Write Enable (WE)
The Write Enable input controls the writing of data to
both the static RAM and stores to the EEPROM.
Nonvolatile Enable (NE)
The Nonvolatile Enable input controls all accesses to
the EEPROM array (store and recall functions).
DEVICE OPERATION
The CE, OE, WE and NE inputs control the X20C04
operation. The X20C04 byte-wide NOVRAM uses a 2-
line control architecture to eliminate bus contention in a
system environment. The I/O bus will be in a high
impedance state when either OE or CE is HIGH, or
when NE is LOW.
REV 1.0 6/21/00
www.xicor.com
Characteristics subject to change without notice. 2 of 15

विन्यास 15 पेज
डाउनलोड[ X20C04 Datasheet.PDF ]


शेयर लिंक


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