My Inquiry
My Account
Renesas AT25FF161A-SHL-T
- Part No.:
- AT25FF161A-SHL-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25FF161A-SHL-T.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,787
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25FF161A-SHL-T from Renesas Electronics is a 16-Mbit SPI serial flash memory IC supporting quad I/O, XiP (eXecute-in-Place), and flexible multi-I/O protocols (1-1-2, 1-1-4, 1-4-4, 0-4-4) across 1.65 V–3.75 V supply. It delivers up to 133 MHz operation, 4/32/64-kB block erase, and ultra-low 5–7 nA Ultra-Deep Power-Down current - deployed in embedded boot code storage and real-time firmware update systems.
For engineers reviewing the AT25FF161A-SHL-T datasheet, AT25FF161A-SHL-T pinout, AT25FF161A-SHL-T application, or AT25FF161A-SHL-T equivalent, key selection criteria include XiP readiness, JEDEC-standard SFDP support, OTP security register configuration, dual/quad I/O timing compliance, and industrial temperature grade (-40°C to +105°C) validation.
Technical Context
The AT25FF161A-SHL-T implements a hierarchical memory architecture with uniform 4-kB sectors and configurable block protection, enabling selective locking of start/end memory regions via software or hardware write-protect. Its command set includes dedicated suspend/resume for concurrent erase/program operations and full support for Serial Flash Discoverable Parameters (SFDP) v1.6 for automatic host controller initialization.
It integrates five status registers (SR1–SR5) with non-volatile and volatile variants, individual OTP security registers (3 × 128-byte), and factory-programmed 128-byte UID. The device supports JEDEC-standard hardware reset, SPI mode 0/3, and programmable I/O drive strength - all operating within -40°C to +105°C ambient range under 1.65–3.75 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MB) - sufficient for full bootloader + firmware image in space-constrained microcontroller applications. |
| Interface Protocol | SPI with modes 0/3, dual output (1-1-2), quad output (1-1-4), quad I/O (1-4-4), and XiP (0-4-4) - enables high-throughput code execution without RAM copy. |
| Max Clock Frequency | 133 MHz - achieves up to 532 MB/s effective read bandwidth in quad I/O mode, critical for low-latency XiP performance. |
| Erase Granularity | 4-kB, 32-kB, 64-kB blocks and full chip - allows fine-grained firmware patching while preserving critical configuration data. |
| Power Consumption | 5–7 nA Ultra-Deep Power-Down current - extends battery life in always-on IoT edge nodes during sleep cycles. |
| Data Retention | 10 years at -40°C to +105°C - validated for automotive under-hood and industrial control environments. |
| Endurance | 100,000 program/erase cycles (at -40°C to +85°C); 10,000 cycles at -40°C to +105°C - supports field firmware updates over product lifetime. |
Pinout & Package
AT25FF161A-SHL-T is packaged in an 8-pad, 2 × 3 × 0.6 mm DFN (Dual Flat No-lead) package with wettable flank capability, optimized for automated optical inspection (AOI) and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command/address/data transfers; supports daisy-chaining in multi-device configurations. |
| DO (IO1) | Data Output / I/O 1 | Primary serial data output in standard/dual/quad modes; functions as bidirectional I/O in quad I/O/XiP operations. |
| WP# (IO2) | Write Protect Input / I/O 2 | Hardware write-protection when asserted low; repurposed as IO2 in quad I/O mode for address/data multiplexing. |
| HOLD# (IO3) | Hold Input / I/O 3 | Pauses ongoing SPI transfer without deselecting device; reused as IO3 in quad I/O for expanded bus width. |
| DI (IO0) | Data Input / I/O 0 | Serial data input in standard mode; serves as bidirectional I/O 0 in quad I/O and XiP for full 4-line data path. |
| CLK | Serial Clock Input | Master-controlled clock driving all SPI transactions; supports up to 133 MHz with tight setup/hold timing. |
| VCC | Power Supply | 1.65 V–3.75 V single-supply operation - compatible with 1.8 V, 2.5 V, and 3.3 V system rails without level shifters. |
| GND | Ground Reference | Common return path for power and signal integrity; DFN thermal pad must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O & XiP Support | Enables direct code execution from flash via 0-4-4 command format, eliminating boot latency and external RAM dependency. |
| Ultra-Low Power Modes | 5–7 nA UDPD current reduces quiescent power by >99% vs. standard deep power-down, extending shelf life and battery runtime. |
| OTP Security Registers | Three 128-byte one-time programmable registers allow secure key storage, device authentication, and firmware signature binding. |
| Flexible Block Protection | Software-configurable lock/unlock of individual 4-kB blocks or contiguous memory ranges - prevents accidental overwrite of critical firmware sections. |
| SFDP v1.6 Compliance | Provides standardized, host-agnostic parameter discovery for automatic clock tuning, dummy cycle insertion, and mode switching. |
| JEDEC Hardware Reset | Guarantees deterministic recovery from brown-out or communication fault without requiring external reset IC or GPIO intervention. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating continuously in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile program memory with XiP capability and 10-year data retention at +105°C. Use Value: Eliminates boot-time RAM copy delay and ensures firmware integrity across 10,000+ thermal cycles. |
Use Scenario: Hosting boot code and sensor calibration data for radar/EPS ECUs requiring ASIL-B functional safety alignment. IC Role / Device Role / Timing Role: High-reliability SPI flash with JEDEC reset, OTP security, and -40°C to +105°C qualification. Use Value: Enables secure, deterministic boot sequence and tamper-resistant calibration storage compliant with ISO 26262 requirements. |
| IoT Edge Node Configuration | Medical Diagnostic Device Log Storage |
Use Scenario: Persistent storage of network credentials, OTA update metadata, and device-specific parameters in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Low-power serial flash with 5–7 nA UDPD current and 100,000-cycle endurance for frequent reconfiguration. Use Value: Extends battery life beyond 10 years in sealed deployments while supporting secure credential rotation. |
Use Scenario: Archiving diagnostic logs, calibration history, and audit trails in portable ultrasound and ECG devices subject to FDA 21 CFR Part 11. IC Role / Device Role / Timing Role: AEC-Q100-qualified non-volatile memory with factory UID and OTP registers for traceability and data integrity. Use Value: Provides immutable device identity and cryptographically verifiable log storage without external security co-processors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q16JW | 16 Mbit, 1.65–3.6 V, 133 MHz max, but lacks 0-4-4 XiP mode and UDPD <7 nA; only supports 1-1-4/1-4-4. | Requires host-side code relocation for XiP; less suitable for latency-critical embedded boot. | Select AT25FF161A-SHL-T when XiP execution, ultra-low UDPD, or OTP-based secure boot is required. |
| Micron MT25QL128ABA | 128 Mbit density, 1.7–2.0 V only, no 1.65 V support; supports SFDP v1.7 but no factory UID or OTP registers. | Better for high-capacity firmware storage, but incompatible with 1.65 V systems and lacks hardware security primitives. | Choose AT25FF161A-SHL-T for 1.65 V compatibility, integrated UID/OTP, and industrial-temp robustness. |
Compared with W25Q16JW and MT25QL128ABA, the AT25FF161A-SHL-T uniquely combines XiP-ready 0-4-4 mode, sub-7 nA UDPD, factory UID, and three OTP registers - making it optimal for secure, low-power, real-time boot applications where voltage flexibility and on-chip security matter.
Availability
AT25FF161A-SHL-T is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS, and medical diagnostics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.
Supply support for AT25FF161A-SHL-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25FF161A belongs to Renesas' high-performance serial flash memory product line, engineered for reliability-critical embedded systems demanding XiP capability, ultra-low power states, and hardware-enforced security features.
FAQ
What is the operating voltage range of the AT25FF161A-SHL-T?
The AT25FF161A-SHL-T operates across 1.65 V to 3.75 V, supporting direct integration into 1.8 V, 2.5 V, and 3.3 V system rails without level-shifting circuitry. This wide range ensures compatibility with legacy and next-generation low-power microcontrollers and SoCs.
Does the AT25FF161A-SHL-T support eXecute-in-Place (XiP) functionality?
Yes, the AT25FF161A-SHL-T fully supports XiP via its 0-4-4 command format, enabling continuous read bursts without repeated command opcodes. This eliminates boot latency and reduces host processor overhead - a core capability confirmed in the official Renesas datasheet DS-AT25FF161A-182.
What package type does the AT25FF161A-SHL-T use?
The AT25FF161A-SHL-T uses an 8-pad, 2 × 3 × 0.6 mm DFN package with wettable flanks. This compact, thermally enhanced footprint supports high-density PCB layouts and automated optical inspection - verified in Renesas' Packaging Information section (Page 119).
How many one-time programmable (OTP) security registers does the AT25FF161A-SHL-T include?
The AT25FF161A-SHL-T includes three 128-byte OTP security registers, each independently lockable after programming. These registers are used for storing cryptographic keys, device certificates, or firmware signatures - detailed in Section 5.11 and Table 30–33 of the datasheet.
What is the data retention specification for the AT25FF161A-SHL-T at extended temperature?
The AT25FF161A-SHL-T guarantees 10 years of data retention at -40°C to +105°C, validated per JEDEC JESD22-A117. This makes it suitable for under-hood automotive, industrial control, and outdoor infrastructure applications where thermal stress is extreme.
Does the AT25FF161A-SHL-T support Serial Flash Discoverable Parameters (SFDP)?
Yes, the AT25FF161A-SHL-T implements SFDP v1.6 (command 5Ah), providing standardized, host-transparent access to timing parameters, dummy cycle counts, and supported instruction sets - enabling automatic configuration without hard-coded driver assumptions.
AT25FF161A-SHL-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR (SLC)
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 50µs, 7ms
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.65V ~ 3.75V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25FF161A-SHL-T FAQ
1.How can I place an order for AT25FF161A-SHL-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF161A-SHL-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT25FF161A-SHL-T reliable?
The price and inventory of AT25FF161A-SHL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25FF161A-SHL-T is usually 5 days.
3.What payment methods are accepted for AT25FF161A-SHL-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF161A-SHL-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF161A-SHL-T?
AT25FF161A-SHL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF161A-SHL-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT25FF161A-SHL-T?
For technical support, including AT25FF161A-SHL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF161A-SHL-T requirements.
6.How does Aetrix verify that AT25FF161A-SHL-T is sourced from the original manufacturer or authorized distributors?
All AT25FF161A-SHL-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT25FF161A-SHL-T meets industry standards.
7.What is the process for return or replacement of AT25FF161A-SHL-T?
All AT25FF161A-SHL-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF161A-SHL-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT25FF161A-SHL-T part is unused and in its original packaging.
Return procedure for AT25FF161A-SHL-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25FF161A-SHL-T Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
