Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

STK11C68-SF25ITR Folha de dados(PDF) 4 Page - Cypress Semiconductor

Nome de Peças STK11C68-SF25ITR
Descrição Electrónicos  64 Kbit (8K x 8) SoftStore nvSRAM
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  CYPRESS [Cypress Semiconductor]
Página de início  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

STK11C68-SF25ITR Folha de dados(HTML) 4 Page - Cypress Semiconductor

  STK11C68-SF25ITR Datasheet HTML 1Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 2Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 3Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 4Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 5Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 6Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 7Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 8Page - Cypress Semiconductor STK11C68-SF25ITR Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 16 page
background image
STK11C68
Document Number: 001-50638 Rev. **
Page 4 of 16
average current drawn by the STK11C68 depends on the
following items:
The duty cycle of chip enable
The overall cycle rate for accesses
The ratio of Reads to Writes
CMOS versus TTL input levels
The operating temperature
The VCC level
IO loading
Best Practices
nvSRAM products have been used effectively for over 15 years.
While ease of use is one of the product’s main system values,
experience gained working with hundreds of applications has
resulted in the following suggestions as best practices:
The nonvolatile cells in an nvSRAM are programmed on the
test floor during final test and quality assurance. Incoming
inspection routines at customer or contract manufacturer’s
sites sometimes reprograms these values. Final NV patterns
are typically repeating patterns of AA, 55, 00, FF, A5, or 5A.
The end product’s firmware should not assume that an NV array
is in a set programmed state. Routines that check memory
content values to determine first time system configuration,
cold or warm boot status, and so on must always program a
unique NV pattern (for example, complex 4-byte pattern of 46
E6 49 53 hex or more random bytes) as part of the final system
manufacturing test to ensure these system routines work
consistently.
Power up boot firmware routines should rewrite the nvSRAM
into the desired state. While the nvSRAM is shipped in a preset
state, best practice is to again rewrite the nvSRAM into the
desired state as a safeguard against events that might flip the
bit inadvertently (program bugs, incoming inspection routines,
and so on).
Figure 2. Current Versus Cycle Time (Read)
Figure 3. Current Versus Cycle Time (Write)
Table 1. Hardware Mode Selection
CE
WE
A12–A0
Mode
IO
Notes
L
H
0x0000
0x1555
0x0AAA
0x1FFF
0x10F0
0x0F0F
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile STORE
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
[1]
L
H
0x0000
0x1555
0x0AAA
0x1FFF
0x10F0
0x0F0E
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile RECALL
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
[1]
Note
1. The six consecutive addresses must be in the order listed. WE must be high during all six consecutive CE controlled cycles to enable a nonvolatile cycle.
[+] Feedback


Nº de peça semelhante - STK11C68-SF25ITR

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Simtek Corporation
STK11C68-SF25ITR SIMTEK-STK11C68-SF25ITR Datasheet
475Kb / 16P
   8Kx8 SoftStore nvSRAM
More results

Descrição semelhante - STK11C68-SF25ITR

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Cypress Semiconductor
STK11C68-5 CYPRESS-STK11C68-5 Datasheet
536Kb / 15P
   64 Kbit (8K x 8) SoftStore nvSRAM
CY14E064L CYPRESS-CY14E064L Datasheet
840Kb / 16P
   64-Kbit (8K x 8) nvSRAM
CY14E064L CYPRESS-CY14E064L_07 Datasheet
520Kb / 17P
   64 Kbit (8K x 8) nvSRAM
logo
List of Unclassifed Man...
U631H64 ETC-U631H64 Datasheet
194Kb / 12P
   SoftStore 8K x 8 nvSRAM
logo
Simtek Corporation
U631H64 SIMTEK-U631H64 Datasheet
131Kb / 13P
   SoftStore 8K x 8 nvSRAM
logo
Cypress Semiconductor
STK12C68 CYPRESS-STK12C68 Datasheet
751Kb / 20P
   64 Kbit (8K x 8) AutoStore nvSRAM
STK12C68-5 CYPRESS-STK12C68-5 Datasheet
591Kb / 18P
   64 Kbit (8K x 8) AutoStore nvSRAM
STK11C88 CYPRESS-STK11C88 Datasheet
474Kb / 15P
   256 Kbit (32K x 8) SoftStore nvSRAM
logo
Simtek Corporation
U631H256 SIMTEK-U631H256 Datasheet
246Kb / 13P
   SoftStore 32K x 8 nvSRAM
logo
List of Unclassifed Man...
U631H16 ETC-U631H16 Datasheet
275Kb / 12P
   SOFTSTORE 2K X 8 NVSRAM
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   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