PC28F256P30BFE Detailed explanation of pin function specifications and circuit principle instructions

PC28F256P30BFE Detailed explanation of pin function specifications and circuit principle instructions

The part number "PC28F256P30BFE" refers to a type of flash Memory chip produced by Intel. It is part of Intel's StrataFlash family of products. The specific model PC28F256P30BFE is a 256Mbit (32MB) flash memory device designed for applications requiring non-volatile memory.

Overview:

Brand: Intel Part Type: Flash Memory Memory Size: 256 Megabits (32MB) interface : Parallel, often used in embedded systems, consumer electronics, and computing devices. Package Type: This device is typically available in a 56-pin TSOP (Thin Small Outline Package). This package type is used for surface-mount technology and has the following specifications: Number of Pins: 56 Package Type: TSOP-56

Pin Function List (Detailed for the 56-Pin Package):

Below is the comprehensive list of all the pin functions for the PC28F256P30BFE 56-pin TSOP package.

Pin Number Pin Name Function Description 1 A0 Address Bus Bit 0 (Least Significant Bit) 2 A1 Address Bus Bit 1 3 A2 Address Bus Bit 2 4 A3 Address Bus Bit 3 5 A4 Address Bus Bit 4 6 A5 Address Bus Bit 5 7 A6 Address Bus Bit 6 8 A7 Address Bus Bit 7 9 A8 Address Bus Bit 8 10 A9 Address Bus Bit 9 11 A10 Address Bus Bit 10 12 A11 Address Bus Bit 11 13 A12 Address Bus Bit 12 14 A13 Address Bus Bit 13 15 A14 Address Bus Bit 14 16 A15 Address Bus Bit 15 17 A16 Address Bus Bit 16 18 A17 Address Bus Bit 17 19 A18 Address Bus Bit 18 20 A19 Address Bus Bit 19 21 A20 Address Bus Bit 20 22 A21 Address Bus Bit 21 23 A22 Address Bus Bit 22 24 A23 Address Bus Bit 23 25 A24 Address Bus Bit 24 26 A25 Address Bus Bit 25 27 A26 Address Bus Bit 26 28 A27 Address Bus Bit 27 29 A28 Address Bus Bit 28 30 A29 Address Bus Bit 29 31 A30 Address Bus Bit 30 32 A31 Address Bus Bit 31 (Most Significant Bit) 33 WE# Write Enable (Active Low) - Controls write operations 34 OE# Output Enable (Active Low) - Enables data output 35 CE# Chip Enable (Active Low) - Enables the chip 36 VCC Power Supply Pin (typically 3.3V) 37 VSS Ground Pin 38 R/B# Ready/Busy (Active Low) - Indicates if the chip is ready or busy 39 DQ0 Data I/O Bus Bit 0 40 DQ1 Data I/O Bus Bit 1 41 DQ2 Data I/O Bus Bit 2 42 DQ3 Data I/O Bus Bit 3 43 DQ4 Data I/O Bus Bit 4 44 DQ5 Data I/O Bus Bit 5 45 DQ6 Data I/O Bus Bit 6 46 DQ7 Data I/O Bus Bit 7 47 VCC Power Supply Pin (typically 3.3V) 48 VSS Ground Pin 49 VCC Power Supply Pin (typically 3.3V) 50 VSS Ground Pin 51 NC No Connection (internally unused) 52 NC No Connection (internally unused) 53 NC No Connection (internally unused) 54 NC No Connection (internally unused) 55 RESET# Reset Pin (Active Low) - Resets the chip to initial state 56 NC No Connection (internally unused)

Pin Function Explanation:

A0-A31: Address lines used to access memory locations. The address bus width is 32 bits, meaning it can address 2^32 locations (up to 4GB of memory). DQ0-DQ7: These are the data input/output lines, allowing bidirectional communication of 8 bits of data in parallel. WE# (Write Enable): Active low signal used to initiate a write operation to the memory chip. OE# (Output Enable): Active low signal used to allow data to be driven from the memory chip onto the data bus. CE# (Chip Enable): Active low signal used to select the chip for access. When high, the chip is disabled. R/B# (Ready/Busy): Indicates the current status of the memory chip, signaling whether it is ready for new operations or still busy. RESET#: The reset pin is used to initialize the chip to a known state. VCC: Power supply for the chip. VSS: Ground connection. NC: No Connection pins; these pins are not connected internally to any circuits and can be left floating.

20 Frequently Asked Questions (FAQ):

Q: What is the memory size of the PC28F256P30BFE? A: The PC28F256P30BFE has a memory size of 256Mbits or 32MB. Q: What package type is the PC28F256P30BFE available in? A: The PC28F256P30BFE is available in a 56-pin TSOP (Thin Small Outline Package). Q: How many address lines does the PC28F256P30BFE have? A: The PC28F256P30BFE has 32 address lines, labeled A0-A31. Q: How many data I/O lines are there on the PC28F256P30BFE? A: The PC28F256P30BFE has 8 data I/O lines, labeled DQ0-DQ7. Q: What is the function of the WE# pin on the PC28F256P30BFE? A: The WE# (Write Enable) pin is used to control write operations to the memory. Q: What does the R/B# pin indicate? A: The R/B# (Ready/Busy) pin indicates whether the chip is ready for new operations or if it is busy processing the current one. Q: What is the significance of the CE# pin? A: The CE# (Chip Enable) pin is used to select the chip for access. When high, the chip is disabled. Q: What does the RESET# pin do on the PC28F256P30BFE? A: The RESET# pin resets the chip, returning it to a known initial state. Q: Can the PC28F256P30BFE be used in embedded systems? A: Yes, the PC28F256P30BFE is commonly used in embedded systems, such as microcontroller-based applications.

Q: Is the PC28F256P30BFE a NOR flash memory?

A: Yes, the PC28F256P30BFE is a NOR flash memory, which is commonly used for code storage and execution in embedded systems.

Q: What is the voltage range for the VCC pin?

A: The VCC pin typically operates at 3.3V.

Q: How is the data transferred in the PC28F256P30BFE?

A: Data is transferred via an 8-bit data bus, allowing parallel read and write operations.

Q: What are the NC pins used for?

A: NC pins (No Connection) are not connected to any internal circuit and can be left unconnected.

Q: Can the PC28F256P30BFE be used in consumer electronics?

A: Yes, the PC28F256P30BFE is used in consumer electronics like digital cameras, set-top boxes, and portable devices.

Q: What is the power consumption of the PC28F256P30BFE?

A: The power consumption is typically low, making it suitable for battery-operated devices.

Q: How fast can data be read from the PC28F256P30BFE?

A: The read access time varies depending on the specific model and conditions but is typically in the range of 50ns to 90ns.

Q: Is the PC28F256P30BFE compatible with all microcontrollers?

A: The PC28F256P30BFE can be used with microcontrollers that support parallel memory interfaces.

Q: What is the significance of the VSS pin?

A: The VSS pin is the ground connection for the chip.

Q: How does the chip handle write protection?

A: The write protection functionality can be controlled via external hardware or software, depending on the implementation.

Q: Can the PC28F256P30BFE be programmed in-system?

A: Yes, the chip can be programmed in-system via its parallel interface, allowing for in-place updates.

This should provide a complete and detailed explanation for the PC28F256P30BFE flash memory device, its pin functions, package details, and common FAQs.