Key facts
- Brand
- Atmel
- Model
- AT45DB161D
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
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Atmel AT45DB161D DataFlash Datasheet
The AT45DB161D is a 2.5‑V or 2.7‑V serial‑interface DataFlash memory offering up to 66 MHz SPI‑compatible operation. It provides 4,096 pages of either 512 bytes or 528 bytes each, two SRAM buffers for simultaneous read/write, and low‑power consumption (7 mA active, 25 pA standby, 9 pA deep‑power‑down). The device includes hardware and software data‑protection features such as sector lockdown and a 128‑byte security register.
The document describes pin assignments, block diagram, memory hierarchy (sectors, blocks, pages), and the full set of read, write, and erase commands. Continuous array read modes (standard, high‑frequency, low‑frequency) allow fast sequential access, while buffer‑to‑memory programming supports both built‑in and external erase operations. Timing diagrams and command opcodes are provided for implementation.
Atmel AT45DB161D specifications
| Supply Voltage | 2.5 V‑3.6 V or 2.7 V‑3.6 V |
|---|---|
| Maximum Clock Frequency | 66 MHz |
| Page Size | 512 Bytes or 528 Bytes per page |
| Memory Capacity | 17,301,504 bits (16 Mbit) |
| Number of Pages | 4,096 pages |
| Active Read Current | 7 mA typical |
| Standby Current | 25 pA typical |
| Deep Power‑Down Current | 9 pA typical |
| Program/Erase Cycles | 100,000 cycles per page (minimum) |
| Data Retention | 20 years |
All Atmel AT45DB161D documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the AT45DB161D support?
It operates from a single supply of 2.5 V to 3.6 V or 2.7 V to 3.6 V.
What is the maximum SPI clock frequency for the device?
The device supports up to 66 MHz clock frequency on the RapidS serial interface.
What supply voltage range does the AT45DB161D operate at?
It operates from a single supply of 2.5 V to 3.6 V, or from 2.7 V to 3.6 V.
How many pages of memory does the device contain?
The device contains 4,096 pages, each 512 bytes or 528 bytes in size.