AT29C040A-90TU

Name: AT29C040A-90TU
Brand: Microchip Technology
Rating: 4.5 (10 reviews)
Author: Lisleapex

Operating voltage range of 4.5V to 5.5V

900 Effective Inventory

AT29C040A-90TU

Effective Inventory900

Operating voltage range of 4.5V to 5.5V

Manufacturer Part # : AT29C040A-90TU
Package/Case: TSOP-32
Part Status : Discontinued
Brand: Microchip Technology
Product Categories : Memory
Series : AT29C040

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AT29C040A-90TU DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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AT29C040A-90TU Details

The AT29C040A-90TU is a 4-megabit parallel flash memory from Microchip Technology, offering fast and reliable data storage capabilities. This memory device features a high-speed access time of 90ns, making it suitable for applications requiring quick data retrieval. It is housed in a convenient and durable package, providing easy integration into various electronic systems.

Pinout

1 (A0): Address Input
2 (A1): Address Input
3 (A2): Address Input
4 (A3): Address Input
5 (A4): Address Input
6 (A5): Address Input
7 (A6): Address Input
8 (A7): Address Input
9 (A8): Address Input
10 (A9): Address Input
11 (A10): Address Input
12 (A11): Address Input
13 (A12): Address Input
14 (A13): Address Input
15 (A14): Address Input
16 (A15): Address Input
17 (A16): Address Input
18 (A17): Address Input
19 (A18): Address Input
20 (A19): Address Input
21 (A20): Address Input
22 (A21): Address Input
23 (A22): Address Input
24 (A23): Address Input
25 (WE#): Write Enable
26 (OE#): Output Enable
27 (CE#): Chip Enable
28 (RY/BY#): Ready/Busy Status Output
29-36 (DQ0-DQ7): Data Input/Output
37-44 (DQ8-DQ15): Data Input/Output

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High-Speed Access: Offers a fast access time of 90ns for quick data retrieval.
Large Storage Capacity: Provides 4-megabit storage capacity for data-intensive applications.
Durable Package: Housed in a durable package for reliable performance in various environments.
Versatile Interface: Features a parallel interface for easy integration with microcontrollers and other devices.
Low Power Consumption: Designed for efficient power usage to extend battery life in portable devices.

Application

Embedded Systems: Ideal for storing program code and data in embedded system applications.
Consumer Electronics: Used in consumer electronic devices for data storage and firmware updates.
Industrial Control: Suitable for industrial control systems that require reliable and fast-access memory.

Where to Use

The AT29C040A-90TU is suitable for applications that require fast and reliable data storage, such as embedded systems, consumer electronics, and industrial control systems. It is ideal for tasks that demand high-speed data access and large storage capacity.

How to Use

Integrate the AT29C040A-90TU into your system by connecting the address, data, and control pins based on the application requirements. Use the write enable, output enable, and chip enable pins to control data read and write operations. Ensure proper power supply connections and observe timing requirements for optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the AT29C040A-90TU demonstrates how to connect the flash memory to a microcontroller or host system. It includes connections for address, data, and control signals, ensuring correct operation and data transfer.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

AT49BV040: A similar parallel flash memory device with comparable specifications and functionality.
W27C040: An alternative flash memory option offering similar storage capacity and interface.

Complementary

The AT29C040A-90TU can be paired with the AT28C040-20PU, which provides additional storage capacity and compatibility with a wide range of systems. This combination enhances data storage capabilities and system performance.

When selecting complementary memory devices, ensure compatibility and interface alignment for seamless integration and operation.

Frequently Asked Questions

Q: What is the write speed of the AT29C040A-90TU?

A: The write speed of the AT29C040A-90TU is determined by the access time of 90ns. For specific timing details, consult the datasheet for accurate performance characteristics.

Q: Can the AT29C040A-90TU be used in battery-powered devices?

A: Yes, the AT29C040A-90TU is designed for low power consumption, making it suitable for battery-powered devices that require efficient data storage capabilities.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !	NOR Flash	RoHS	Details
Mounting Style	SMD/SMT	Package / Case	TSOP-32
Series	AT29C	Memory Size !	4 Mbit
Supply Voltage - Min	4.5 V	Supply Voltage - Max	5.5 V
Active Read Current - Max	40 mA	Interface Type	Parallel
Organization	512 k x 8	Data Bus Width	8 bit
Timing Type	Asynchronous	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature !	+ 85 C	Architecture	Sector
Brand	Microchip Technology	Memory Type !	NOR
Moisture Sensitive	Yes	Product Type !	NOR Flash
Speed	90 ns	Standard	Not Supported
Factory Pack Quantity	156	Subcategory	Memory & Data Storage

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification AT29C040A-90TU PDF Download

FAQs

What is AT29C040A-90TU?

The AT29C040A-90TU is a 4-megabit (512K x 8) electrically erasable programmable read-only memory (EEPROM) organized as 512K words of 8 bits each, designed by Atmel Corporation. It is commonly used for storing program data, configuration settings, and firmware in various electronic devices.

How Does AT29C040A-90TU Work?

The AT29C040A-90TU operates by allowing data to be read, programmed, and erased electrically. It uses CMOS technology for low power consumption and features a byte-wide access for easy interfacing with microcontrollers or other digital systems. The EEPROM can be both erased and reprogrammed in-system, providing flexibility for data storage needs.

How Many Pins does AT29C040A-90TU have and What are the Functions of the Pinout Configuration?

The AT29C040A-90TU is housed in a 32-lead TSOP (Thin Small Outline Package) package. The pinout configuration includes:

VCC: Power supply pin.
GND: Ground pin.
A0-A18: Address input pins for selecting memory locations.
CE: Chip Enable for device operation.
OE: Output Enable for data output.
WE: Write Enable for data programming.
BYTE: Byte/Word Organization control pin.
RESET: Reset pin for initialization.
DQ0-DQ7: Data input/output pins.

What are the Pros and Cons of AT29C040A-90TU?

Pros:

High Storage Capacity: Offers 4 megabits of non-volatile memory storage.
Electrically Erasable and Reprogrammable: Allows for convenient in-system reprogramming.
Low Power Consumption: Utilizes CMOS technology for efficient power usage.
Easy Interface: Byte-wide access simplifies interfacing with microcontrollers.
Reliable Data Storage: Provides reliable data retention and endurance for long-term usage.

Cons:

Write Endurance: Limited number of write/erase cycles compared to other memory technologies.
Program/Erasing Speed: Programming and erasing operations may take longer compared to other memory types.
Cost: EEPROMs like the AT29C040A-90TU may have a higher cost per bit compared to other memory options.

Are There Any Equivalents/Alternatives to AT29C040A-90TU for Recommendation?

The M29F400BT from STMicroelectronics is a similar 4-megabit EEPROM with comparable features.
Alternatives to the AT29C040A-90TU include the 28C040 from Microchip Technology and the W27C040 from Winbond Electronics.