DataSheet.es    


PDF X25041PI Data sheet ( Hoja de datos )

Número de pieza X25041PI
Descripción SPI Serial E2PROM with Block LockTM Protection
Fabricantes Xicor 
Logotipo Xicor Logotipo



Hay una vista previa y un enlace de descarga de X25041PI (archivo pdf) en la parte inferior de esta página.


Total 14 Páginas

No Preview Available ! X25041PI Hoja de datos, Descripción, Manual

X25041
4K
X25041
512 x 8 Bit
SPI Serial E2PROM with Block LockTM Protection
FEATURES
1MHz Clock Rate
SPI Modes (0,1 & 1,0)
512 X 8 Bits
—4 Byte Page Mode
Low Power CMOS
—150µA Standby Current
—3mA Active Current
2.7V To 5.5V Power Supply
Block Lock Protection
—Protect 1/4, 1/2 or all of E2PROM Array
Built-in Inadvertent Write Protection
—Power-Up/Power-Down protection circuitry
—Write Latch
—Write Protect Pin
Self-Timed Write Cycle
—5ms Write Cycle Time (Typical)
High Reliability
—Endurance: 100,000 cycles per byte
—Data Retention: 100 Years
—ESD protection: 2000V on all pins
8-Lead PDlP Package
8-Lead SOIC Package
DESCRIPTION
The X25041 is a CMOS 4096-bit serial E2PROM, inter-
nally organized as 512 x 8. The X25041 features a Serial
Peripheral Interface (SPI) and software protocol allow-
ing operation on a simple three-wire bus. The bus
signals are a clock input (SCK) plus separate data in (SI)
and data out (SO) lines. Access to the device is con-
trolled through a chip select (CS) input, allowing any
number of devices to share the same bus.
The X25041 also features two additional inputs that
provide the end user with added flexibility. By asserting
the HOLD input, the X25041 will ignore transitions on its
inputs, thus allowing the host to service higher priority
interrupts. The WP input can be used as a hardwire input
to the X25041 disabling all write attempts, thus providing
a mechanism for limiting end user capability of altering
the memory.
The X25041 utilizes Xicor’s proprietary Direct Write™
cell, providing a minimum endurance of 100,000 cycles
per byte and a minimum data retention of 100 years.
FUNCTIONAL DIAGRAM
STATUS
REGISTER
SO
SI
SCK
CS
HOLD
COMMAND
DECODE
AND
CONTROL
LOGIC
WRITE
PROTECT
LOGIC
WRITE
CONTROL
AND
WP TIMING
LOGIC
Direct Write™ and Block Lock™ Protection is a trademark of Xicor, Inc.
©Xicor, Inc. 1995, 1996 Patents Pending
6556-1.2 6/10/96 T6/C1/D0 NS
1
X DECODE
LOGIC
32
32
64
512 BYTE
ARRAY
32 X 32
32 X 32
64 X 32
48
Y DECODE
DATA REGISTER
6556 FHD F01
Characteristics subject to change without notice

1 page




X25041PI pdf
X25041
Operational Notes
The X25041 powers-up in the following state:
• The device is in the low power standby state.
• A HIGH to LOW transition on CS is required to
enter an active state and receive an instruction.
• SO pin is high impedance.
• The “write enable” latch is reset.
Data Protection
The following circuitry has been included to prevent
inadvertent writes:
• The “write enable” latch is reset upon power-up.
• A WREN instruction must be issued to set the “write
enable” latch.
CS must come HIGH at the proper clock count in
order to start a write cycle.
Figure 1. Read E2PROM Array Operation Sequence
CS
SCK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
INSTRUCTION
BYTE ADDRESS
SI 8 7 6 5 4 3 2 1 0
9TH BIT OF ADDRESS
HIGH IMPEDANCE
SO
DATA OUT
76543210
MSB
6556 FHD F14.1
Figure 2. Read Status Register Operation Sequence
CS
SCK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
INSTRUCTION
SI
HIGH IMPEDANCE
SO
76
MSB
DATA OUT
5432
10
6556 ILL F13
5

5 Page





X25041PI arduino
X25041
Hold Timing
CS
SCK
SO
SI
HOLD
tHD
tHZ
tCD tCD
tHD
tLZ
6556 FHD F11
SYMBOL TABLE
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
11

11 Page







PáginasTotal 14 Páginas
PDF Descargar[ Datasheet X25041PI.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
X25041PSPI Serial E2PROM with Block LockTM ProtectionXicor
Xicor
X25041P-2.7SPI Serial E2PROM with Block LockTM ProtectionXicor
Xicor
X25041P-3SPI Serial E2PROM with Block LockTM ProtectionXicor
Xicor
X25041PISPI Serial E2PROM with Block LockTM ProtectionXicor
Xicor

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar