仕様
| 属性 | 値 |
| Supplier | Microchip Technology |
| Package / Case | Tube |
| Part Status | Obsolete |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH |
| Memory Size | 1Mb (264 Bytes x 512 pages) |
| Memory Interface | SPI |
| Clock Frequency | 20 MHz |
| Write Cycle Time - Word Page | 15ms |
| Voltage - Supply | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount |
概要
Description
AT45DB011B-SU is Atmel’s 1-Mbit Serial DataFlash memory in an 8-pin SOIC package (-SU). It provides 128 KB of nonvolatile flash accessible via a SPI-compatible interface. The device uses two internal data buffers and a page-oriented organization to enable fast writes: data is written to a buffer and then programmed into flash, with support for random reads and continuous reads. It also supports erase operations (sector and block), power-down modes, and a status register with protection features. The -SU suffix denotes the standard SOIC package and an industrial-temperature range variant. Typical applications include firmware/code storage, data logging, and other embedded storage needs requiring low pin count and simple SPI access.
Equivalent
AT45DB011B-SU is a 1 Mbit SPI DataFlash (8-pin). Equivalents from other vendors (1 Mb SPI flash/DataFlash) include:
- Winbond W25X10
- Macronix MX25L1006E
- GigaDevice GD25Q10B
- Spansion/Cypress S25FL010K
- ISSI IS25LP010D
Note: exact pinout and command sets vary (DataFlash vs NOR SPI); verify compatibility before use.
- Winbond W25X10
- Macronix MX25L1006E
- GigaDevice GD25Q10B
- Spansion/Cypress S25FL010K
- ISSI IS25LP010D
Note: exact pinout and command sets vary (DataFlash vs NOR SPI); verify compatibility before use.
Pinout
- Pin count: 8 pins.
- Function: 1‑Mbit Serial DataFlash memory with SPI interface (AT45DB011B). Non-volatile data storage accessed via SI, SO, SCK, and CS; includes write protection (WP) and HOLD features; powered by VCC with GND return. Typical SU package pinout (8‑pin): 1 CS, 2 SO, 3 SI, 4 SCK, 5 GND, 6 WP, 7 HOLD, 8 VCC.
- Function: 1‑Mbit Serial DataFlash memory with SPI interface (AT45DB011B). Non-volatile data storage accessed via SI, SO, SCK, and CS; includes write protection (WP) and HOLD features; powered by VCC with GND return. Typical SU package pinout (8‑pin): 1 CS, 2 SO, 3 SI, 4 SCK, 5 GND, 6 WP, 7 HOLD, 8 VCC.
Manufacturer
Manufacturer: Atmel Corporation (now part of Microchip Technology).
What kind of company: A semiconductor company that designs and manufactures memory ICs (DataFlash) and microcontrollers, among other embedded solutions.
What kind of company: A semiconductor company that designs and manufactures memory ICs (DataFlash) and microcontrollers, among other embedded solutions.
Application
Typical application areas for AT45DB011B-SU (1-Mbit DataFlash in an 8-pin package):
- Embedded microcontroller systems needing compact, non-volatile storage
- Firmware storage, bootloaders, and in-field firmware updates
- Random-access data logging and sensor data buffers
- Configuration, calibration, and parameter storage for consumer/industrial devices
- Small consumer electronics (printers, digital cameras, audio/video players)
- Instrumentation, metering, and automation controllers in space-constrained applications
- Embedded microcontroller systems needing compact, non-volatile storage
- Firmware storage, bootloaders, and in-field firmware updates
- Random-access data logging and sensor data buffers
- Configuration, calibration, and parameter storage for consumer/industrial devices
- Small consumer electronics (printers, digital cameras, audio/video players)
- Instrumentation, metering, and automation controllers in space-constrained applications
Package
8-pin SOIC (Small-Outline Integrated Circuit) surface-mount package.
