M29W640FB Programming Ic Chips 64 Mbit (8Mb x8 or 4Mb x16 , Page ,
Boot Block ) 3V Supply Flash Memory
Features summary
• 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
• Programming Time
– 10 µs per Byte/Word typical
– 4 Words/8 Bytes Program
• 135 memory blocks
– 1 Boot Block and 7 Parameter Blocks, 8 KBytes each (Top or Bottom
Location)
– 127 Main Blocks, 64 KBytes each
• Program/Erase Controller
– Embedded Byte/Word Program algorithms
• 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
• 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
• Electronic Signature
– Manufacturer Code: 0020h
Maximum rating
Stressing the device above the rating listed in the Absolute
Maximum Ratings table may cause permanent damage to the device.
Exposure to Absolute Maximum Rating conditions for extended periods
may affect device reliability. These are stress ratings only and
operation of the device at these or any other conditions above
those indicated in the Operating sections of this specification is
not implied. Refer also to the STMicroelectronics SURE Program and
other relevant quality documents.
Absolute Maximum Ratings
| Symbol | Parameter | Min | Max | Unit |
| TBIAS | Temperature Under Bias | –50 | 125 | °C |
| TSTG | Storage Temperature | -65 | 150 | °C |
| VIO | Input or Output Voltage(1)(2) | –0.6 | VCC +0.6 | V |
| VCC | Supply Voltage | –0.6 | 4 | V |
| VID | Identification Voltage | –0.6 | 13.5 | V |
| VPP (3) | Program Voltage | –0.6 | 13.5 | V |
1. Minimum voltage may undershoot to –2V during transition and for
less than 20ns during transitions.
2. Maximum voltage may overshoot to VCC +2V during transition and
for less than 20ns during transitions.
3. VPP must not remain at 12V for more than a total of 80hrs.
Packages
Logic Diagram
TSOP Connections
TFBGA48 Connections (Top view through package)
