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Name: M27C256B-12F1
Brand: STMicroelectronics
SKU: M27C256B-12F1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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STMicroelectronics M27C256B-12F1

Part No.:: M27C256B-12F1

Manufacturer:: STMicroelectronics

Package:: 28-CDIP (0.600, 15.24mm) Window

Datasheet:: M27C256B-12F1.pdf

Description:: IC EPROM 256KBIT PARALLEL 28CDIP

In Stock:: 2096

Quantity:: Add To Cart

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M27C256B-12F1 Specifications

Package/Case:
28-CDIP (0.600, 15.24mm) Window
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
MemoryType:
Non-Volatile
MemoryFormat:
EPROM
Technology:
EPROM - UV
MemorySize:
256Kb (32K x 8)
MemoryInterface:
Parallel
ClockFrequency:
-
WriteCycleTime-WordPage:
-
AccessTime:
120 ns
Voltage-Supply:
4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C (TA)
MountingType:
Through Hole

M27C256B-12F1 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including M27C256B-12F1 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for M27C256B-12F1 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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M27C256B-12F1 information

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M27C256B-12F1 Typical application Circuitry

The M27C256B-12F1 is a significant component in the realm of electronics, specifically identified as a 256 Kbit (32Kb x8) UV erasable programmable read-only memory (EPROM) chip.

Being a memory storage unit, it offers various applications and comes with distinctive features that are utilized in several electronic setups. Let's navigate through its functionalities, applications, features, a detailed circuit connection guide, and certain critical aspects to consider during circuit design.

Attributes of M27C256B-12F1:

1. Data Storage: The primary function of the M27C256B-12F1 is to store data, which can be retained even without power.

2. Speed: It comes with a 120 ns access time, providing quick data retrieval, an essential feature in high-speed operations.

3. UV Erasable: This chip can be erased for reprogramming using UV light, making it reusable in different applications.

Application Scenarios:

The M27C256B-12F1 chip is commonly found in older computer systems, embedded systems, and industrial controllers where fixed data storage is required. Its erasable and programmable nature makes it versatile for a range of applications.

Specific Circuit Connection - Embedded System:

Consider a scenario where M27C256B-12F1 is used in an embedded system for storing firmware. Here is a detailed circuit connection guide:

1. Power Supply Pins (VCC - Pin 28 and VSS - Pin 14):

- VCC (Pin 28): This pin should be connected to a +5V DC power supply to power the chip.

- VSS (Pin 14): This pin needs to be grounded to complete the power circuit.

2. Address Inputs (A0 to A14 - Pins 22 to 31, 2 and 1):

- Address Pins: These pins are used to access the different memory locations in the chip. Connect them to the address bus of the microcontroller or processor in your system.

3. Data Outputs/Input (D0 to D7 - Pins 11 to 18):

- Data Pins: These pins serve as the data bus, connected to the data inputs/outputs of the microcontroller or processor to read or write data.

4. Control Inputs (OE - Pin 20, CE - Pin 27, WE - Pin 29):

- OE (Output Enable - Pin 20): When this pin is low, data can be read from the chip. Generally connected to the read control signal of the microcontroller.

- CE (Chip Enable - Pin 27): This pin enables the chip when it is low. It should be connected to a control signal that indicates when the chip is being accessed.

- WE (Write Enable - Pin 29): This pin, when low, allows data to be written to the chip. Generally connected to the write control signal of the microcontroller.

Design Considerations with M27C256B-12F1:

1. Noise Suppression: Utilize decoupling capacitors near the power supply pins to mitigate noise disturbances in the circuit.

2. Signal Integrity: Maintain a neat layout with well-routed traces to uphold signal integrity and prevent cross-talk between lines.

3. Protection from UV Light: Since the M27C256B-12F1 is UV erasable, implement measures to protect the chip from unintentional erasure by UV light.

4. Heat Management: Incorporate sufficient provisions for heat dissipation to ensure the chip operates within the specified temperature range.

In conclusion, implementing the M27C256B-12F1 in your circuit design can enhance the data storage and retrieval efficacy. By following the above circuit connection guide and considering the mentioned design aspects, you can construct a robust and efficient system featuring the M27C256B-12F1.

M27C256B-12F1 FAQ

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6. What is the process for return or replacement of M27C256B-12F1?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the M27C256B-12F1 we delivered, we will accept the replacement or return of the M27C256B-12F1 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of M27C256B-12F1.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

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