DataSheet.in

DP8420V डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers - National Semiconductor

भाग संख्या DP8420V
समारोह microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
1 Page
		
<?=DP8420V?> डेटा पत्रक पीडीएफ

DP8420V pdf
Table of Contents
1 0 INTRODUCTION
2 0 SIGNAL DESCRIPTIONS
2 1 Address R W and Programming Signals
2 2 DRAM Control Signals
2 3 Refresh Signals
2 4 Port A Access Signals
2 5 Port B Access Signals (DP8422V DP84T22)
2 6 Common Dual Port Signals (DP8422V DP84T22)
2 7 Power Signals and Capacitor Input
2 8 Clock Inputs
3 0 PROGRAMMING AND RESETTING
3 1 External Reset
3 2 Programming Methods
3 2 1 Mode Load Only Programming
3 2 2 Chip Selected Access Programming
3 3 Internal Programming Modes
5 3 Extending Refresh
5 4 Clearing the Refresh Address Counter
5 5 Clearing the Refresh Request Clock
6 0 PORT A WAIT STATE SUPPORT
6 1 WAIT Type Output
6 2 DTACK Type Output
6 3 Dynamically Increasing the Number of Wait States
6 4 Guaranteeing RAS Low Time and RAS Precharge
Time
7 0 RAS AND CAS CONFIGURATION MODES
7 1 Byte Writing
7 2 Memory Interleaving
7 3 Address Pipelining
7 4 Error Scrubbing
7 5 Page Burst Mode
8 0 TEST MODE
4 0 PORT A ACCESS MODES
4 1 Access Mode 0
4 2 Access Mode 1
9 0 DRAM CRITICAL TIMING PARAMETERS
9 1 Programmable Values of tRAH and tASC
9 2 Calculation of tRAH and tASC
4 3 Extending CAS with Either Access Mode
10 0 DUAL ACCESSING (DP8422V and DP84T22V)
4 4 Read-Modify-Write Cycles with Either Access Mode
10 1 Port B Access Mode
4 5 Additional Access Support Features
10 2 Port B Wait State Support
4 5 1 Address Latches and Column Increment
4 5 2 Address Pipelining
4 5 3 Delay CAS during Write Accesses
10 3 Common Port A and Port B Dual Port Functions
10 3 1 GRANTB Output
10 3 2 LOCK Input
5 0 REFRESH OPTIONS
10 4 TRI-STATE Outputs (DP84T22 Only)
5 1 Refresh Control Modes
5 1 1 Automatic Internal Refresh
5 1 2 Externally Controlled Burst Refresh
5 1 3 Refresh Request Acknowledge
11 0 ABSOLUTE MAXIMUM RATINGS
12 0 DC ELECTRICAL CHARACTERISTICS
13 0 AC TIMING PARAMETERS
5 2 Refresh Cycle Types
5 2 1 Conventional Refresh
5 2 2 Staggered RefreshTM
5 2 3 Error Scrubbing Refresh
14 0 FUNCTIONAL DIFFERENCES BETWEEN THE
DP8420V 21V 22V DP84T22 AND THE
DP8420 21 22
15 0 DP8420V 21V 22V DP84T22 USER HINTS
2

विन्यास 30 पेज
डाउनलोड[ DP8420V Datasheet.PDF ]


शेयर लिंक


अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
DP8420A(DP8420A - DP8422A) microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/DriversNational Semiconductor
National Semiconductor
DP8420ADP8420A/21A/22A microCMOS Prog 256k/1M/4M Dyn RAM Cntrl/Drivers (Rev. A)Texas Instruments
Texas Instruments


भाग संख्याविवरणविनिर्माण
30L120CTSchottky RectifierPFC Device
PFC Device
AT28C010-12DKSpace 1-MBit (128K x 8) Paged Parallel EEPROMATMEL
ATMEL
B20NM50FDN-CHANNEL POWER MOSFETSTMicroelectronics
STMicroelectronics
D8442SD844SavantIC
SavantIC
FAE391-A20AM/FM Automotive Electronic TunerMitsumi
Mitsumi


Index : 0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z



www.DataSheet.in    |   2017   |  संपर्क   |   खोज     |   English