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AT45DB081E-SSHN2B-T

Name: AT45DB081E-SSHN2B-T
Rating: 4.7 (12 reviews)

IC FLASH 8MBIT SPI 85MHZ 8SOIC

제조업체
Mfr.부분 #AT45DB081E-SSHN2B-T
패키지 8-SOIC (0.154, 3.90mm Width)
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사양

Supplier	Dialog Semiconductor GmbH
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
MemoryType	Non-Volatile
MemoryFormat	FLASH
Technology	FLASH
MemorySize	8Mb (256 Bytes x 4096 pages)
MemoryInterface	SPI
ClockFrequency	85 MHz
WriteCycleTime-WordPage	8µs, 4ms
Voltage-Supply	1.7V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C (TC)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

개요

Description

AT45DB081E-SSHN2B-T is an 8‑Mbit Serial DataFlash memory from Atmel (now Microchip) in an SSHN2B‑T 8‑pin package. It provides nonvolatile storage with an SPI-compatible interface and is intended for embedded data storage, firmware buffering, or configuration data.
Key points:
- SPI interface (CS, SCK, SI, SO) with a standard command set
- Main memory array plus two internal data buffers for fast writes
- Supports reads (including continuous/high‑speed reads), page programming, and sector/block erases
- Features include Ready/Busy status, hardware write protection, and Deep Power‑Down for low power
- Operating voltage typically in the 2.7–3.6V range (voltage depends on revision)
- Package: SSHN2B‑T, an compact 8‑pin package
Typical uses: firmware storage, data logging, buffering data for MCUs, and general nonvolatile storage in space‑constrained systems.
For exact timing, page size, memory organization, and command codes, refer to the AT45DB081E datasheet.

Features

Here are concise features of AT45DB081E-SSHN2B-T:
- 8 Mbit (1 MB) serial DataFlash memory with SPI-compatible interface
- Operating voltage 2.7–3.6 V; industrial temperature range -40°C to +85°C
- 264-byte page size; memory organized in pages
- Two internal 264-byte SRAM buffers for fast data transfer (Buffer A/B)
- Page programming via buffers (Buffer to Memory Page Program)
- Read operations: random access, Page Read and Continuous/Sequential Read
- Erase options: Sector erase (4 KB), Block erase (32 KB and 64 KB), Chip erase
- Ready/Busy status (RDY/BSY); hardware write-protect (WP) pin
- Low-power modes: Deep Power-Down and standby
- SPI clock up to high speed (typical implementations up to tens of MHz)
- 8-pin package variant (SSHN2B-T)
These cover core functionality and typical operating conditions.

Package

An 8‑pin surface‑mount Small Outline package (SOIC) for the AT45DB081E family.

Pinout

Pin count: 8 pins (8-pin package, e.g., SOIC-8/TSSOP-8).
Function: 8 Mbit SPI-compatible Serial Flash memory (AT45DB081E). Pins include:
- CS: Chip Select
- SCK: Serial Clock
- SI (MOSI): Serial Input
- SO (MISO): Serial Output
- WP#: Write Protect (active low)
- HOLD#: Hold (active low)
- VCC: Power
- GND: Ground

Manufacturer

Manufacturer: Atmel Corporation (now part of Microchip Technology Inc.).
What kind of company: A semiconductor company that designs and manufactures embedded memory (DataFlash) and microcontrollers. Atmel is an American electronics semiconductor maker; it was acquired by Microchip Technology.

Application

- External data storage and firmware shadowing for embedded systems
- Data logging and archival in automotive, industrial, and consumer electronics
- Buffering/staging memory for cameras, audio, and handheld devices
- Bootloaders and firmware-update storage
- Configuration and calibration data storage
- Portable instrumentation and test equipment data storage

Equivalent

Equivalents (8 Mbit SPI serial flash; functionally similar) from other vendors include:
- Winbond W25Q80DV/W25Q80BV
- Macronix MX25L8006E
- GigaDevice GD25Q80B
- ISSI IS25LP080D
- Puya P25Q80U
Note: These are SPI NOR flashes, not exact DataFlash drop-ins. Check command set, page size, addressing, voltage, and packaging for true compatibility.