Details

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BUY 29F040C-90 https://www.utsource.net/itm/p/12607616.html

Parameter	Description	Value
Device Type	Flash Memory
Manufacturer	Intel
Part Number	29F040C-90
Memory Size	512 K x 8 bits (4 Mbit)
Voltage (Vcc)	Supply Voltage	2.7V to 3.6V
Operating Temperature	-40掳C to +85掳C
Access Time	Read Access Time	90 ns
Write Cycle Time	Program/Erase Cycle Time	5 ms / 10 ms
Endurance	Write/Erase Cycles	100,000
Data Retention	Data Retention Time	10 years
Package	TSOP-48
Pin Count	48
Standby Current	Power Consumption in Standby Mode	10 渭A
Active Current	Power Consumption in Active Mode	20 mA

Instructions for Use

1. Power Supply:

   • Connect Vcc to a stable power supply within the range of 2.7V to 3.6V.
   • Connect Vss to ground.

2. Address Lines:

   • Connect the address lines (A0-A18) to the appropriate address outputs from your microcontroller or address decoder.

3. Data Lines:

   • Connect the data lines (D0-D7) to the corresponding data inputs/outputs of your microcontroller.

4. Control Signals:

   • Chip Enable (CE#): Low to enable the device.
   • Output Enable (OE#): Low to enable data output.
   • Write Enable (WE#): Low to initiate a write operation.
   • Write Protect (WP#): High to allow writing, low to protect against accidental writes.
   • Ready/Busy (R/B#): Low when the device is busy, high when ready.

5. Programming:

   • Follow the specific programming sequence detailed in the datasheet for writing data to the memory.
   • Ensure that the write cycle time (5 ms) is respected to avoid data corruption.

6. Erase:

   • Use the block erase command to erase a block of memory.
   • Ensure that the erase cycle time (10 ms) is respected to avoid incomplete erasure.

7. Standby Mode:

   • To enter standby mode, set CE# high. This will reduce power consumption to 10 渭A.

8. Handling:

   • Handle the device with care to avoid static damage.
   • Store in a dry environment to prevent moisture-related issues.

9. Testing:

   • After programming, verify the contents of the memory using a read operation to ensure data integrity.

For detailed timing diagrams and specific commands, refer to the full datasheet provided by Intel.

(For reference only)