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PDF M29W640FT Data sheet ( Hoja de datos )
| Número de pieza | M29W640FT | |
| Descripción | (M29W640FB / M29W640FT) 64M 3V Supply Flash Memory | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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M29W640FT
M29W640FB
64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block)
3V Supply Flash Memory
Features summary
Figure 1. Packages
■ Supply Voltage
– VCC = 2.7V to 3.6V for Program, Erase,
Read
– VPP =12 V for Fast Program (optional)
■ Asynchronous Random/Page Read
– Page Width: 4 Words
– Page Access: 25ns
– Random Access: 60ns, 70ns
TSOP48 (N)
12 x 20mm
■ Programming Time
– 10 µs per Byte/Word typical
– 4 Words/8 Bytes Program
FBGA
■ 135 memory blocks
– 1 Boot Block and 7 Parameter Blocks,
TFBGA48 (ZA)
8 KBytes each (Top or Bottom Location)
6x8mm
www.DataSheet4U.com– 127 Main Blocks, 64 KBytes each
■ Program/Erase Controller
■ Electronic Signature
– Embedded Byte/Word Program algorithms
– Manufacturer Code: 0020h
■ Program/Erase Suspend and Resume
– Read from any Block during Program
Suspend
– Read and Program another Block during
Erase Suspend
■ Unlock Bypass Program command
– Faster Production/Batch Programming
■ VPP/WP pin for Fast Program and Write Protect
Table 1. Device Codes
Root Part Number
M29W640FT
M29W640FB
■ ECOPACK® packages
Device Code
22EDh
22FDh
■ Temporary Block Unprotection mode
■ Common Flash Interface
– 64-bit Security Code
■ Extended Memory Block
– Extra block used as security block or to
store additional information
■ Low power consumption
– Standby and Automatic Standby
■ 100,000 Program/Erase cycles per block
December 2005
Rev3
1/72
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1 page  
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M29W640FT, M29W640FB
List of tables
Table 1.
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Device Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bus Operations, BYTE = VIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Bus Operations, BYTE = VIH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Commands, 16-bit mode, BYTE = VIH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Commands, 8-bit mode, BYTE = VIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Program, Erase Times and Program, Erase Endurance Cycles. . . . . . . . . . . . . . . . . . . . . 29
Status Register Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Device Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Read AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Write AC Characteristics, Write Enable Controlled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Write AC Characteristics, Chip Enable Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Reset/Block Temporary Unprotect AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
TSOP48 – 48 lead Plastic Thin Small Outline, 12 x 20mm, Package Mechanical Data. . . 44
TFBGA48 6x8mm - 6x8 active ball array, 0.8mm pitch, Package Mechanical Data. . . . . . 45
Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Top Boot Block Addresses, M29W640FT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Bottom Boot Block Addresses, M29W640FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Query Structure Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
CFI Query Identification String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
www.DataSheet4U.comCFI Query System Interface Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Device Geometry Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Primary Algorithm-Specific Extended Query Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Security Code Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Extended Block Address and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Programmer Technique Bus Operations, BYTE = VIH or VIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
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M29W640FT, M29W640FB
2 Signal descriptions
2 Signal descriptions
See Figure 1: Logic Diagram, and Table 1: Signal Names, for a brief overview of the signals
connected to this device.
2.1 Address Inputs (A0-A21)
The Address Inputs select the cells in the memory array to access during Bus Read operations.
During Bus Write operations they control the commands sent to the Command Interface of the
Program/Erase Controller.
2.2 Data Inputs/Outputs (DQ0-DQ7)
The Data I/O outputs the data stored at the selected address during a Bus Read operation.
During Bus Write operations they represent the commands sent to the Command Interface of
the Program/Erase Controller.
2.3 Data Inputs/Outputs (DQ8-DQ14)
The Data I/O outputs the data stored at the selected address during a Bus Read operation
when BYTE is High, VIH. When BYTE is Low, VIL, these pins are not used and are high
impedance. During Bus Write operations the Command Register does not use these bits.
www.DataSheet4U.comWhen reading the Status Register these bits should be ignored.
2.4 Data Input/Output or Address Input (DQ15A–1)
When BYTE is High, VIH, this pin behaves as a Data Input/Output pin (as DQ8-DQ14). When
BYTE is Low, VIL, this pin behaves as an address pin; DQ15A–1 Low will select the LSB of the
addressed Word, DQ15A–1 High will select the MSB. Throughout the text consider references
to the Data Input/Output to include this pin when BYTE is High and references to the Address
Inputs to include this pin when BYTE is Low except when stated explicitly otherwise.
2.5 Chip Enable (E)
The Chip Enable, E, activates the memory, allowing Bus Read and Bus Write operations to be
performed. When Chip Enable is High, VIH, all other pins are ignored.
2.6 Output Enable (G)
The Output Enable, G, controls the Bus Read operation of the memory.
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