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DP8440 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - (DP8440 / DP8441) microCMOS Programmable 16/64 Mbit Dynamic RAM Controller/Driver - National Semiconductor

भाग संख्या DP8440
समारोह (DP8440 / DP8441) microCMOS Programmable 16/64 Mbit Dynamic RAM Controller/Driver
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
1 Page
		
<?=DP8440?> डेटा पत्रक पीडीएफ

DP8440 pdf
DRAM
Controller
DP8440V-40
DP8440VLJ-40
DP8440VLJ-25
DP8441VLJ-40
DP8441VLJ-25
Maximum Clock
Frequency
40 MHz
40 MHz
25 MHz
40 MHz
25 MHz
Package
Type
84-Pin PLCC
100-Pin PQFP
100-Pin PQFP
100-Pin PQFP
100-Pin PQFP
Bus Width
Supporting
8 16 32
8 16 32
8 16 32
8 16 32 64
8 16 32 64
Largest DRAM
Possible
16 Mbits
16 Mbits
16 Mbits
64 Mbits
64 Mbits
1 0 CONNECTION DIAGRAMS
2 0 FUNCTIONAL INTRODUCTION
3 0 SIGNAL DESCRIPTION
3 1 Address and Control Signals
3 2 DRAM Control Signals
3 3 Refresh Signals
3 4 Reset and Programming Signals
3 5 Clock Inputs
3 6 Power Signals and Capacitor Input
4 0 PROGRAMMING AND RESETTING
4 1 Reset
4 2 Programming Sequence
4 3 Programming Selection Bits
5 0 ACCESS MODES
5 1 Opening Access
5 2 Normal Mode
5 3 Page Mode
5 4 Burst Access
5 5 Inner Page Burst Access
6 0 REFRESH MODES
6 1 Auto-Internal Refresh
6 2 Externally Controlled Refresh
6 3 Error Scrubbing during Refresh
6 4 Extending Refresh
6 5 Refresh Types
Table of Contents
7 0 WAIT SUPPORT
7 1 DTACK During Opening Access
7 2 DTACK During Page Access
7 3 DTACK During Burst Access
7 4 Next Address or Early DTACK Support
8 0 ABSOLUTE MAXIMUM RATINGS
9 0 DC ELECTRICAL CHARACTERISTICS
10 0 LOAD CAPACITANCE
11 0 AC TIMING PARAMETERS
12 0 AC TIMING WAVEFORMS
CLK and DECLK Timing
Refresh Timing
Refresh and Access Timing
Programming and Initialization Period Timing
Normal Mode Access Timing
Page Mode Access Timing
Burst Mode Access Timing
13 0 ERRATA
14 0 PHYSICAL DIMENSIONS
2

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डाउनलोड[ DP8440 Datasheet.PDF ]


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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
DP8440(DP8440 / DP8441) microCMOS Programmable 16/64 Mbit Dynamic RAM Controller/DriverNational Semiconductor
National Semiconductor


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