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HLX6256 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 32K x 8 STATIC RAM-Low Power SOI - Honeywell

भाग संख्या HLX6256
समारोह 32K x 8 STATIC RAM-Low Power SOI
मैन्युफैक्चरर्स Honeywell 
लोगो Honeywell लोगो 
पूर्व दर्शन
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<?=HLX6256?> डेटा पत्रक पीडीएफ

HLX6256 pdf
HLX6256
FUNCTIONAL DIAGRAM
A:0-8,12-13
11
CE
NCS
NWE
NOE
A:9-11, 14
4
Row
Decoder
32,768 x 8
Memory
Array
•••
Column Decoder
Data Input/Output
WE • CS • CE
8
8
DQ:0-7
NWE • CS • CE • OE
(0 = high Z)
1 = enabled
Signal #
Signal
All controls must be
enabled for a signal to
pass. (#: number of
buffers, default = 1)
SIGNAL DEFINITIONS
A: 0-14
DQ: 0-7
NCS
NWE
NOE
CE*
Address input pins which select a particular eight-bit word within the memory array.
Bidirectional data pins which serve as data outputs during a read operation and as data inputs during a write
operation.
Negative chip select, when at a low level allows normal read or write operation. When at a high level NCS
forces the SRAM to a precharge condition, holds the data output drivers in a high impedance state and
disables all input buffers except CE. If this signal is not used it must be connected to VSS.
Negative write enable, when at a low level activates a write operation and holds the data output drivers in a
high impedance state. When at a high level NWE allows normal read operation.
Negative output enable, when at a high level holds the data output drivers in a high impedance state. When
at a low level, the data output driver state is defined by NCS, NWE and CE. If this signal is not used it must
be connected to VSS.
Chip enable, when at a high level allows normal operation. When at a low level CE forces the SRAM to a
precharge condition, holds the data output drivers in a high impedance state and disables all the input buffers
except the NCS input buffer. If this signal is not used it must be connected to VDD.
TRUTH TABLE
NCS
L
L
H
X
CE* NWE NOE
MODE
DQ
H H L Read Data Out
H
LX
Write
Data In
X XX XX Deselected High Z
L XX XX Disabled High Z
*Not Available in 28-Lead DIP or 28-Lead Flat Pack
2
Notes:
X: VI=VIH or VIL
XX: VSSVIVDD
NOE=H: High Z output state maintained for
NCS=X, CE=X, NWE=X

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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
HLX625632K x 8 STATIC RAM-Low Power SOIHoneywell
Honeywell


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