Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

GS81302DT20GE-400I Datasheet(PDF) 7 Page - GSI Technology

No. de pieza GS81302DT20GE-400I
Descripción Electrónicos  144Mb SigmaQuad-II Burst of 4 SRAM
Download  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  GSI [GSI Technology]
Página de inicio  http://www.gsitechnology.com
Logo GSI - GSI Technology

GS81302DT20GE-400I Datasheet(HTML) 7 Page - GSI Technology

Back Button GS81302DT20GE-400I Datasheet HTML 3Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 4Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 5Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 6Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 7Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 8Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 9Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 10Page - GSI Technology GS81302DT20GE-400I Datasheet HTML 11Page - GSI Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 31 page
background image
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 1.02c 8/2017
7/31
© 2011, GSI Technology
GS81302DT06/11/20/38E-500/450/400/350
Background
Separate I/O SRAMs, from a system architecture point of view, are attractive in applications where alternating reads and writes are
needed. Therefore, the SigmaQuad-II+ SRAM interface and truth table are optimized for alternating reads and writes. Separate I/O
SRAMs are unpopular in applications where multiple reads or multiple writes are needed because burst read or write transfers from
Separate I/O SRAMs can cut the RAM’s bandwidth in half.
SigmaQuad-II+ Burst of 4 SRAM DDR Read
The status of the Address Input, W, and R pins are sampled by the rising edges of K. W and R high causes chip disable. A Low on
the Read Enable pin, R, begins a read cycle. R is always ignored if the previous command loaded was a read command. Clocking
in a High on the Read Enable pin, R, begins a read port deselect cycle.
SigmaQuad-II+ Burst of 4 SRAM DDR Write
The status of the Address Input, W, and R pins are sampled by the rising edges of K. W and R High causes chip disable. A Low on
the Write Enable pin, W, and a High on the Read Enable pin, R, begins a write cycle. W is always ignored if the previous command
was a write command. Data is clocked in by the next rising edge of K, the rising edge of K after that, the next rising edge of K, and
finally by the next rising edge of K.
Special Functions
Byte Write and Nybble Write Control
Byte Write Enable pins are sampled at the same time that Data In is sampled. A High on the Byte Write Enable pin associated with
a particular byte (e.g., BW0 controls D0–D8 inputs) will inhibit the storage of that particular byte, leaving whatever data may be
stored at the current address at that byte location undisturbed. Any or all of the Byte Write Enable pins may be driven High or Low
during the data in sample times in a write sequence.
Each write enable command and write address loaded into the RAM provides the base address for a 4-beat data transfer. The x18
version of the RAM, for example, may write 72 bits in association with each address loaded. Any 9-bit byte may be masked in any
write sequence.
Nybble Write (4-bit) control is implemented on the 8-bit-wide version of the device. For the x8 version of the device, “Nybble
Write Enable” and “NWx” may be substituted in all the discussion above.
Example x18 RAM Write Sequence using Byte Write Enables
Data In Sample Time
BW0
BW1
D0–D8
D9–D17
Beat 1
0
1
Data In
Don’t Care
Beat 2
1
0
Don’t Care
Data In
Beat 3
0
0
Data In
Data In
Beat 4
1
0
Don’t Care
Data In
Resulting Write Operation
Byte 1
D0–D8
Byte 2
D9–D17
Byte 1
D0–D8
Byte 2
D9–D17
Byte 1
D0–D8
Byte 2
D9–D17
Byte 1
D0–D8
Byte 2
D9–D17
Written
Unchanged
Unchanged
Written
Written
Written
Unchanged
Written
Beat 1
Beat 2
Beat 3
Beat 4


Número de pieza similar - GS81302DT20GE-400I

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
GSI Technology
GS81302DT20GE-500 GSI-GS81302DT20GE-500 Datasheet
515Kb / 31P
   JEDEC-standard pinout and package
GS81302DT20GE-500I GSI-GS81302DT20GE-500I Datasheet
515Kb / 31P
   JEDEC-standard pinout and package
More results

Descripción similar - GS81302DT20GE-400I

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
GSI Technology
GS81302D06 GSI-GS81302D06 Datasheet
405Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302DT06E-500 GSI-GS81302DT06E-500 Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D38AGD-450I GSI-GS81302D38AGD-450I Datasheet
446Kb / 26P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D11E-350I GSI-GS81302D11E-350I Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D38GE-450I GSI-GS81302D38GE-450I Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D20AGD-450I GSI-GS81302D20AGD-450I Datasheet
446Kb / 26P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302DT38GE-450I GSI-GS81302DT38GE-450I Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D11E-450I GSI-GS81302D11E-450I Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D11GE-350 GSI-GS81302D11GE-350 Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D20E-400I GSI-GS81302D20E-400I Datasheet
515Kb / 31P
   144Mb SigmaQuad-II Burst of 4 SRAM
GS81302D20AGD-500 GSI-GS81302D20AGD-500 Datasheet
446Kb / 26P
   144Mb SigmaQuad-II Burst of 4 SRAM
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com