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

X  

STK15C88-NF45I Folha de dados(PDF) 4 Page - Cypress Semiconductor

Nome de Peças STK15C88-NF45I
Descrição Electrónicos  256 Kbit (32K x 8) PowerStore nvSRAM
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  CYPRESS [Cypress Semiconductor]
Página de início  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

STK15C88-NF45I Folha de dados(HTML) 4 Page - Cypress Semiconductor

  STK15C88-NF45I Datasheet HTML 1Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 2Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 3Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 4Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 5Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 6Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 7Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 8Page - Cypress Semiconductor STK15C88-NF45I Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 15 page
background image
STK15C88
Document Number: 001-50593 Rev. **
Page 4 of 15
Hardware Protect
The STK15C88 offers hardware protection against inadvertent
STORE operation and SRAM WRITEs during low voltage
conditions. When VCAP<VSWITCH, all externally initiated
STORE operations and SRAM WRITEs are inhibited.
Noise Considerations
The STK15C88 is a high speed memory. It must have a high
frequency
bypass
capacitor
of
approximately
0.1
µF
connected between VCC and VSS, using leads and traces that
are as short as possible. As with all high speed CMOS ICs,
careful routing of power, ground, and signals reduce circuit
noise.
Low Average Active Power
CMOS technology provides the STK15C88 the benefit of
drawing significantly less current when it is cycled at times
longer than 50 ns. Figure 2 and Figure 3 show the relationship
between ICC and READ or WRITE cycle time. Worst case
current consumption is shown for both CMOS and TTL input
levels (commercial temperature range, VCC = 5.5V, 100%
duty cycle on chip enable). Only standby current is drawn
when the chip is disabled. The overall average current drawn
by the STK15C88 depends on the following items:
1. The duty cycle of chip enable
2. The overall cycle rate for accesses
3. The ratio of READs to WRITEs
4. CMOS versus TTL input levels
5. The operating temperature
6. The VCC level
7. IO loading
Figure 2. Current Versus Cycle Time (WRITE)
Figure 3. Current Versus Cycle Time (READ)
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 applica-
tions 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, reprogram these values. Final NV patterns
are typically repeating patterns of AA, 55, 00, FF, A5, or 5A.
End product’s firmware should not assume a NV array is in
a set programmed state. Routines that check memory
content values to determine first time system configuration
and cold or warm boot status should 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 and incoming
inspection routines).
[+] Feedback


Nº de peça semelhante - STK15C88-NF45I

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Simtek Corporation
STK15C88-NF45I SIMTEK-STK15C88-NF45I Datasheet
377Kb / 15P
   32Kx8 PowerStore nvSRAM
logo
Cypress Semiconductor
STK15C88-NF45I CYPRESS-STK15C88-NF45I Datasheet
832Kb / 17P
   256-Kbit (32 K x 8) PowerStore nvSRAM Unlimited RECALL Cycles
logo
Simtek Corporation
STK15C88-NF45ITR SIMTEK-STK15C88-NF45ITR Datasheet
377Kb / 15P
   32Kx8 PowerStore nvSRAM
logo
Cypress Semiconductor
STK15C88-NF45ITR CYPRESS-STK15C88-NF45ITR Datasheet
832Kb / 17P
   256-Kbit (32 K x 8) PowerStore nvSRAM Unlimited RECALL Cycles
More results

Descrição semelhante - STK15C88-NF45I

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Cypress Semiconductor
CY14B256LA CYPRESS-CY14B256LA Datasheet
648Kb / 21P
   256 Kbit (32K x 8) nvSRAM
CY14E256L CYPRESS-CY14E256L Datasheet
799Kb / 16P
   256-Kbit (32K x 8) nvSRAM
CY14E256L CYPRESS-CY14E256L_09 Datasheet
1Mb / 18P
   256 Kbit (32K x 8) nvSRAM
CY14B256L CYPRESS-CY14B256L Datasheet
1Mb / 17P
   256-Kbit (32K x 8) nvSRAM
CY14E256LA CYPRESS-CY14E256LA Datasheet
606Kb / 19P
   256 Kbit (32K x 8) nvSRAM
CY14B256L CYPRESS-CY14B256L_09 Datasheet
657Kb / 18P
   256 Kbit (32K x 8) nvSRAM
STK14C88-3 CYPRESS-STK14C88-3 Datasheet
618Kb / 17P
   256 Kbit (32K x 8) AutoStore nvSRAM
STK16C88 CYPRESS-STK16C88 Datasheet
468Kb / 14P
   256 Kbit (32K x 8) AutoStore nvSRAM
STK14C88-5 CYPRESS-STK14C88-5 Datasheet
535Kb / 17P
   256 Kbit (32K x 8) AutoStore nvSRAM
STK11C88 CYPRESS-STK11C88 Datasheet
474Kb / 15P
   256 Kbit (32K x 8) SoftStore nvSRAM
More results


Html Pages

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


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