DataSheet.es    


PDF M29W512B Data sheet ( Hoja de datos )

Número de pieza M29W512B
Descripción 512 Kbit 64Kb x8 / Bulk Low Voltage Single Supply Flash Memory
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



Hay una vista previa y un enlace de descarga de M29W512B (archivo pdf) en la parte inferior de esta página.


Total 18 Páginas

No Preview Available ! M29W512B Hoja de datos, Descripción, Manual

M29W512B
512 Kbit (64Kb x8, Bulk)
Low Voltage Single Supply Flash Memory
s SINGLE 2.7 to 3.6V SUPPLY VOLTAGE for
PROGRAM, ERASE and READ OPERATIONS
s ACCESS TIME: 55ns
s PROGRAMMING TIME
– 10µs per Byte typical
s PROGRAM/ERASE CONTROLLER
– Embedded Byte Program algorithm
– Embedded Chip Erase algorithm
– Status Register Polling and Toggle Bits
s UNLOCK BYPASS PROGRAM COMMAND
– Faster Production/Batch Programming
s LOW POWER CONSUMPTION
– Standby and Automatic Standby
s 100,000 PROGRAM/ERASE CYCLES
s 20 YEARS DATA RETENTION
– Defectivity below 1 ppm/year
s ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 27h
TSOP32 (NZ)
8 x 14mm
Figure 1. Logic Diagram
VCC
PLCC32 (K)
16
A0-A15
8
DQ0-DQ7
W M29W512B
E
G
VSS
AI02743
March 2000
1/18

1 page




M29W512B pdf
M29W512B
COMMAND INTERFACE
All Bus Write operations to the memory are inter-
preted by the Command Interface. Commands
consist of one or more sequential Bus Write oper-
ations. Failure to observe a valid sequence of Bus
Write operations will result in the memory return-
ing to Read mode. The long command sequences
are imposed to maximize data security.
The commands are summarized in Table 4, Com-
mands. Refer to Table 4 in conjunction with the
text descriptions below.
Read/Reset Command. The Read/Reset com-
mand returns the memory to its Read mode where
it behaves like a ROM or EPROM. It also resets
the errors in the Status Register. Either one or
three Bus Write operations can be used to issue
the Read/Reset command.
If the Read/Reset command is issued during a
Chip Erase operation the memory will take about
10µs to abort the Chip Erase. During the abort pe-
riod no valid data can be read from the memory.
Issuing a Read/Reset command during a Chip
Erase operation will leave invalid data in the mem-
ory.
Auto Select Command. The Auto Select com-
mand is used to read the Manufacturer Code and
the Device Code. Three consecutive Bus Write op-
erations are required to issue the Auto Select com-
mand. Once the Auto Select command is issued
the memory remains in Auto Select mode until an-
other command is issued.
From the Auto Select mode the Manufacturer
Code can be read using a Bus Read operation
with A0 = VIL and A1 = VIL. The other address bits
may be set to either VIL or VIH. The Manufacturer
Code for STMicroelectronics is 20h.
The Device Code can be read using a Bus Read
operation with A0 = VIH and A1 = VIL. The other
address bits may be set to either VIL or VIH. The
Device Code for the M29W512B is 27h.
Program Command. The Program command
can be used to program a value to one address in
the memory array at a time. The command re-
quires four Bus Write operations, the final write op-
eration latches the address and data in the internal
state machine and starts the Program/Erase Con-
troller.
Table 4. Commands
Bus Write Operations
Command
1st 2nd 3rd 4th 5th 6th
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
Read/Reset
1 X F0
3 555 AA 2AA 55 X F0
Auto Select
3 555 AA 2AA 55 555 90
Program
4 555 AA 2AA 55 555 A0 PA PD
Unlock Bypass
3 555 AA 2AA 55 555 20
Unlock Bypass
Program
2 X A0 PA PD
Unlock Bypass Reset 2 X 90 X 00
Chip Erase
6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10
Note: X Don’t Care, PA Program Address, PD Program Data.
All values in the table are in hexadecimal.
The Command Interface only uses address bits A0-A10 to verify the commands, the upper address bits are Don’t Care.
Read/Reset. After a Read/Reset command, read the memory as normal until another command is issued.
Auto Select. After an Auto Select command, read Manufacturer ID or Device ID.
Program, Unlock Bypass Program, Chip Erase. After these commands read the Status Register until the Program/Erase Controller com-
pletes and the memory returns to Read Mode.
Unlock Bypass. After the Unlock Bypass command issue Unlock Bypass Program or Unlock Bypass Reset commands.
Unlock Bypass Reset. After the Unlock Bypass Reset command read the memory as normal until another command is issued.
5/18

5 Page





M29W512B arduino
M29W512B
Table 10. Read AC Characteristics
(TA = 0 to 70°C)
Symbol Alt
Parameter
Test Condition
tAVAV
tRC
Address Valid to Next Address
Valid
tAVQV
tACC Address Valid to Output Valid
tELQX (1)
tLZ
Chip Enable Low to Output
Transition
tELQV
tCE Chip Enable Low to Output Valid
tGLQX (1)
tOLZ
Output Enable Low to Output
Transition
tGLQV
tOE Output Enable Low to Output Valid
tEHQZ (1)
tHZ Chip Enable High to Output Hi-Z
tGHQZ (1)
tDF Output Enable High to Output Hi-Z
tEHQX
tGHQX
tAXQX
Chip Enable, Output Enable or
tOH Address Transition to Output
Transition
Note: 1. Sampled only, not 100% tested.
E = VIL,
G = VIL
E = VIL,
G = VIL
G = VIL
G = VIL
E = VIL
E = VIL
G = VIL
E = VIL
Min
Max
Min
Max
Min
Max
Max
Max
Min
M29W512B
Unit
55 70 90 / 120
55 70 90 ns
55 70 90 ns
0 0 0 ns
55 70 90 ns
0 0 0 ns
30 30 35 ns
20 25 30 ns
20 25 30 ns
0 0 0 ns
Figure 8. Read Mode AC Waveforms
A0-A15
E
G
DQ0-DQ7
tAVQV
tAVAV
VALID
tELQV
tELQX
tGLQX
tGLQV
tAXQX
tEHQZ
tEHQX
tGHQX
tGHQZ
VALID
AI02977
11/18

11 Page







PáginasTotal 18 Páginas
PDF Descargar[ Datasheet M29W512B.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
M29W512B512 Kbit 64Kb x8 / Bulk Low Voltage Single Supply Flash MemoryST Microelectronics
ST Microelectronics

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