The part number "S29GL256S90TFI010" is a Flash memory device, which is manufactured by Cypress Semiconductor (now part of Infineon Technologies). This part is a 256-Mbit NOR Flash memory. To answer your request thoroughly, I'll provide you with a detailed explanation of its pin functions, packaging details, and the necessary FAQ, as per your requirements.
Pin Function Specification and Circuit Principle
The S29GL256S90TFI010 is typically available in different packages, and for your specific case, it’s most likely available in a TSOP (Thin Small Outline Package), often referred to as TSOP-48 or BGA depending on the variant. The 48-pin TSOP-1 package is common for this type of part.
Pin Function Table (48 Pins):The following table outlines the pin functions and their descriptions. For the TSOP-48 package, there are 48 pins with specific functions.
Pin Number Pin Name Function Description 1 A18 Address Input: Bit 18 of the address. 2 A19 Address Input: Bit 19 of the address. 3 A20 Address Input: Bit 20 of the address. 4 A21 Address Input: Bit 21 of the address. 5 A22 Address Input: Bit 22 of the address. 6 A23 Address Input: Bit 23 of the address. 7 A24 Address Input: Bit 24 of the address. 8 A25 Address Input: Bit 25 of the address. 9 A26 Address Input: Bit 26 of the address. 10 A27 Address Input: Bit 27 of the address. 11 A28 Address Input: Bit 28 of the address. 12 A29 Address Input: Bit 29 of the address. 13 A30 Address Input: Bit 30 of the address. 14 A31 Address Input: Bit 31 of the address. 15 A0 Address Input: Bit 0 of the address. 16 A1 Address Input: Bit 1 of the address. 17 A2 Address Input: Bit 2 of the address. 18 A3 Address Input: Bit 3 of the address. 19 A4 Address Input: Bit 4 of the address. 20 A5 Address Input: Bit 5 of the address. 21 A6 Address Input: Bit 6 of the address. 22 A7 Address Input: Bit 7 of the address. 23 A8 Address Input: Bit 8 of the address. 24 A9 Address Input: Bit 9 of the address. 25 A10 Address Input: Bit 10 of the address. 26 A11 Address Input: Bit 11 of the address. 27 A12 Address Input: Bit 12 of the address. 28 A13 Address Input: Bit 13 of the address. 29 A14 Address Input: Bit 14 of the address. 30 A15 Address Input: Bit 15 of the address. 31 A16 Address Input: Bit 16 of the address. 32 A17 Address Input: Bit 17 of the address. 33 DQ0 Data Input/Output: Bit 0 of the data bus. 34 DQ1 Data Input/Output: Bit 1 of the data bus. 35 DQ2 Data Input/Output: Bit 2 of the data bus. 36 DQ3 Data Input/Output: Bit 3 of the data bus. 37 DQ4 Data Input/Output: Bit 4 of the data bus. 38 DQ5 Data Input/Output: Bit 5 of the data bus. 39 DQ6 Data Input/Output: Bit 6 of the data bus. 40 DQ7 Data Input/Output: Bit 7 of the data bus. 41 WE# Write Enable: Active low signal for write operations. 42 RE# Read Enable: Active low signal for read operations. 43 CE# Chip Enable: Active low signal to enable the chip. 44 OE# Output Enable: Active low signal to enable data output. 45 RESET# Reset: Active low signal to reset the device. 46 VCC Power Supply: 3.0V supply for the device. 47 VSS Ground: Connect to ground. 48 NC No Connect: Not used or internally tied to ground.This list covers all the 48 pins and their detailed functions for the S29GL256S90TFI010 Flash memory device.
Frequently Asked Questions (FAQs)
Q: What is the pin count for the S29GL256S90TFI010? A: The S29GL256S90TFI010 comes in a 48-pin TSOP package.
Q: What is the function of the pin labeled CE#? A: CE# (Chip Enable) is an active low signal that enables the chip for read and write operations when it is pulled low.
Q: Can I use the RESET# pin to reset the device? A: Yes, the RESET# pin is an active low signal used to reset the device.
Q: What does the WE# pin control? A: The WE# (Write Enable) pin controls write operations. It is active low, meaning the chip will allow writing when it is pulled low.
Q: How do I perform a read operation on the device? A: A read operation is initiated by pulling the RE# (Read Enable) pin low. This will allow data to be driven out of the DQ pins.
Q: How do I perform a write operation? A: A write operation is initiated by pulling WE# (Write Enable) and CE# (Chip Enable) low, while the OE# pin remains high.
Q: What voltage levels are required for the VCC pin? A: The VCC pin requires a supply voltage of 3.0V for the proper operation of the device.
Q: Can I use this Flash memory with a 5V supply? A: No, this device operates at 3.0V and should not be used with a 5V supply as it may damage the device.
Q: What is the purpose of the DQ pins? A: The DQ pins (Data Input/Output) are used for both data read and write operations. They are bidirectional and carry the data signals.
Q: How can I connect this device in a circuit? A: The device connects to the microcontroller or memory controller via address, control, and data pins. Ensure that the address lines and control signals like CE#, OE#, WE# are connected correctly.
Q: What is the max clock speed for the S29GL256S90TFI010? A: The device supports a 90ns access time, which translates to a maximum clock speed of approximately 11.1 MHz for typical read/write operations.
Q: What is the package type for this device? A: This device is available in a TSOP-48 package (Thin Small Outline Package).
Q: What is the maximum data bus width for this device? A: The data bus width for this device is 8 bits, meaning it can read and write 8 bits of data at a time.
Q: What is the function of the OE# pin? A: The OE# (Output Enable) pin is used to control when the data from the DQ pins is driven onto the bus. It must be low for the data to be output.
Q: Is the RESET# pin a bidirectional pin? A: No, the RESET# pin is unidirectional and is used solely for initiating a reset when pulled low.
Q: What happens if the CE# pin is not correctly tied to ground? A: If CE# is not pulled low, the chip will not be enabled and no read or write operations will be possible.
Q: Can I connect the DQ pins directly to a microcontroller? A: Yes, the DQ pins can be directly connected to a microcontroller or processor’s data bus for read and write operations.
Q: Can the S29GL256S90TFI010 be used for boot applications? A: Yes, this device is often used for boot code storage in embedded systems due to its fast read access.
Q: What is the recommended operating temperature range for the device? A: The operating temperature range is typically 0°C to 70°C for commercial grade devices.
Q: How do I ensure data integrity when using this Flash memory? A: To ensure data integrity, you should manage the write and erase cycles carefully, and always check the status register to confirm the completion of operations before attempting further read or write actions.
Conclusion
This explanation covers the pinout, functions, and FAQs for the S29GL256S90TFI010 Flash memory device in a comprehensive and detailed manner, with all 48 pins covered.