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

X  

AM29F040B-55JC Folha de dados(PDF) 8 Page - Advanced Micro Devices

Nome de Peças AM29F040B-55JC
Descrição Electrónicos  4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
Download  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AMD [Advanced Micro Devices]
Página de início  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM29F040B-55JC Folha de dados(HTML) 8 Page - Advanced Micro Devices

Back Button AM29F040B-55JC Datasheet HTML 4Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 5Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 6Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 7Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 8Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 9Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 10Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 11Page - Advanced Micro Devices AM29F040B-55JC Datasheet HTML 12Page - Advanced Micro Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 30 page
background image
8
Am29F040B
P R E L I M I NARY
Table 3.
Am29F040B Autoselect Codes (High Voltage Method)
Sector Protection/Unprotection
The hardware sector protection feature disables both
program and erase operations in any sector. The
hardware sector unprotection feature re-enables both
program and erase operations in previously pro-
tected sectors.
Sector protection/unprotection must be implemented
using programming equipment. The procedure re-
quires a high voltage (VID) on address pin A9 and the
control pins. Details on this method are provided in a
supplement, publication number 19957. Contact an
AMD representative to obtain a copy of the appropriate
document.
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at its factory prior to shipping the device
through AMD’s ExpressFlash™ Service. Contact an
AMD representative for details.
It is possible to determine whether a sector is protected
or unprotected. See “Autoselect Mode” for details.
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes (refer to the Command Defi-
nitions table). In addition, the following hardware data
protection measures prevent accidental erasure or pro-
gramming, which might otherwise be caused by spuri-
ous system level signals during VCC power-up and
power-down transitions, or from system noise.
Low VCC Write Inhibit
When VCC is less than VLKO, the device does not ac-
cept any write cycles. This protects data during VCC
power-up and power-down. The command register and
all internal program/erase circuits are disabled, and the
device resets. Subsequent writes are ignored until VCC
is greater than VLKO. The system must provide the
proper signals to the control pins to prevent uninten-
tional writes when VCC is greater than VLKO.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or
WE# do not initiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# =
VIL, CE# = VIH or WE# = VIH. To initiate a write cycle,
CE# and WE# must be a logical zero while OE# is a
logical one.
Power-Up Write Inhibit
If WE# = CE# = VIL and OE# = VIH during power up, the
device does not accept commands on the rising edge
of WE#. The internal state machine is automatically
reset to reading array data on power-up.
COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations. The Command Definitions table defines the
valid register command sequences. Writing incorrect
address and data values or writing them in the im-
proper sequence resets the device to reading array
data.
All addresses are latched on the falling edge of WE# or
CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
first. Refer to the appropriate timing diagrams in the
“AC Characteristics” section.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
retrieve data. The device is also ready to read array
data after completing an Embedded Program or Em-
bedded Erase algorithm.
After the device accepts an Erase Suspend command,
the device enters the Erase Suspend mode. The sys-
tem can read array data using the standard read tim-
ings, except that if it reads at an address within erase-
suspended sectors, the device outputs status data.
After completing a programming operation in the Erase
Suspend mode, the system may once again read array
Description
A18–A16
A15–A10
A9
A8–A7
A6
A5–A2
A1
A0
Identifier Code on
DQ7-DQ0
Manufacturer ID: AMD
X
X
VID
XVIL
XVIL
VIL
01h
Device ID: Am29F040B
X
X
VID
XVIL
XVIL
VIH
A4h
Sector Protection
Verification
Sector
Address
XVID
XVIL
XVIH
VIL
01h (protected)
00h (unprotected)


Nº de peça semelhante - AM29F040B-55JC

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Advanced Micro Devices
AM29F040B-55JC AMD-AM29F040B-55JC Datasheet
790Kb / 35P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F040B-55JC AMD-AM29F040B-55JC Datasheet
981Kb / 36P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
More results

Descrição semelhante - AM29F040B-55JC

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
SPANSION
AM29F040B-09 SPANSION-AM29F040B-09 Datasheet
918Kb / 36P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
logo
Advanced Micro Devices
AM29F040B AMD-AM29F040B_06 Datasheet
981Kb / 36P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
logo
Force Technologies Ltd
FT29F040B FORCE-FT29F040B Datasheet
3Mb / 36P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
logo
Advanced Micro Devices
AM29F040B-1 AMD-AM29F040B-1 Datasheet
790Kb / 35P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F004B AMD-AM29F004B Datasheet
993Kb / 37P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
logo
SPANSION
AM29F004B SPANSION-AM29F004B_06 Datasheet
944Kb / 37P
   4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F010B SPANSION-AM29F010B_06 Datasheet
951Kb / 33P
   1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010B SPANSION-AM29F010B Datasheet
849Kb / 35P
   1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
logo
Advanced Micro Devices
AM29F010 AMD-AM29F010 Datasheet
370Kb / 31P
   1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010A AMD-AM29F010A Datasheet
389Kb / 31P
   1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
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


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