My Inquiry
My Account
Microchip Technology AT49BV160DT-70TU
- Part No.:
- AT49BV160DT-70TU
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT49BV160DT-70TU.pdf
- Description:
- IC FLASH 16MBIT PARALLEL 48TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,924
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT49BV160DT-70TU from Microchip Technology (formerly Atmel) is a 16-Mbit (1M × 16) 3.0V-only parallel Flash memory IC with sector erase architecture, 70 ns access time, and dual-package support (48-pin TSOP and 46-ball CBGA). It features flexible sector protection (Softlock/Hardlock), Erase/Program Suspend/Resume, and Common Flash Interface (CFI) for system-level compatibility in embedded boot code storage.
For engineers reviewing the AT49BV160DT-70TU datasheet, AT49BV160DT-70TU pinout, AT49BV160DT-70TU application, or AT49BV160DT-70TU equivalent, key selection criteria include single-supply 2.65–3.6V operation, 100,000 erase cycles, 128-bit protection register, VPP-accelerated programming, and hardware write protection via WP/VPP pins.
Technical Context
This device implements a command-based Write State Machine (WSM) that manages program, erase, suspend/resume, and status reporting via I/O7–I/O0. Its 39-sector architecture includes thirty-one 64KB sectors and eight 8KB sectors, each individually lockable via software commands or hardware WP pin control.
The CFI-compliant interface enables runtime detection of timing parameters, sector layout, and vendor ID; the 128-bit protection register contains factory-programmed sector A and user-programmable (and lockable) sector B for secure firmware or calibration data storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1,048,576 × 16-bit words) - supports full boot image storage for 8-bit/16-bit microcontrollers. |
| Access Time | 70 ns - enables direct execution from flash (XIP) in systems with ≤14 MHz bus timing. |
| Supply Voltage | 2.65V to 3.6V - compatible with 3.3V logic domains without level shifters. |
| Erase Endurance | 100,000 cycles - validated per sector, supporting field firmware updates over product lifetime. |
| Program Time | 10 µs per word - allows rapid in-system reprogramming during manufacturing or service. |
| Sector Erase Time | 100 ms per sector - deterministic timing simplifies timeout handling in bootloader code. |
| Standby Current | 15 µA - suitable for battery-backed or low-power sleep modes in portable devices. |
Pinout & Package
AT49BV160DT-70TU is available in two RoHS-compliant packages: 48-pin TSOP Type I (12mm × 20mm) and 46-ball CBGA (8mm × 10mm). Both packages support identical pin functions and timing behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 20-bit address bus for full 1M-word addressing; A0–A19 must be stable before CE/WE assertion. |
| I/O0–I/O15 | Bidirectional Data Bus | 16-bit parallel interface; outputs high-impedance when CE or OE is high to prevent bus contention. |
| CE | Chip Enable | Active-low chip select; required with OE/WE to initiate read/write; prevents bus conflicts in multi-device systems. |
| OE | Output Enable | Active-low output control; used with CE to gate data output without affecting internal state. |
| WE | Write Enable | Active-low write strobe; latches address/data on rising edge for command sequences and programming. |
| VPP | Program/Erase Voltage Control | Enables accelerated dual-word programming at 10.0V; inhibits all writes if <0.4V; must not float. |
| WP | Hardware Sector Protection | Low = Hardlock override disabled (locked sectors remain read-only); high = Hardlock can be unlocked via software. |
| RESET | Device Initialization | Active-low reset; forces device into read mode and clears WSM state; required after power-up or error recovery. |
| VCCQ | Output Driver Supply | Separate 2.65–3.6V supply for I/O drivers; ensures VOH = VCCQ − 0.1V for clean 3.3V-compatible signaling. |
| GND / VCC | Power Reference / Core Supply | Dual power pins ensure stable core operation; VCC must be within 2.65–3.6V; GND provides return path for all signals. |
Key Features
| Feature | Design Value |
|---|---|
| Erase/Program Suspend | Allows real-time interruption of erase/program operations to read or program other sectors - essential for multitasking bootloaders. |
| Flexible Sector Protection | Independent Softlock (software-unlockable) and Hardlock (WP-gated) per sector - enables secure bootloader + updatable application partitioning. |
| Common Flash Interface (CFI) | Standardized query table accessible via 98h command - enables automatic driver configuration across multiple flash vendors. |
| 128-bit Protection Register | Factory-programmed 64-bit ID + user-writable/lockable 64-bit space - supports secure key storage and anti-cloning mechanisms. |
| Hardware Data Protection | VCC sense (<1.8V inhibits programming), VPP validation, and control-line gating (OE/CE/WE) - prevents accidental writes during brown-out or noise events. |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
Use Scenario: Storing firmware and calibration tables in programmable logic controllers requiring field updates and tamper resistance. IC Role / Device Role / Timing Role: Non-volatile boot code and parameter storage with sector-level write protection and suspend-enabled background updates. Use Value: 100,000 erase cycles and Hardlock/WP integration ensure firmware integrity across 15+ years of industrial deployment. | Use Scenario: Holding boot loader and safety-critical display firmware in automotive dashboards with ASIL-B compliance requirements. IC Role / Device Role / Timing Role: Primary boot memory accessed via 16-bit parallel bus; CFI enables standardized driver reuse across vehicle platforms. Use Value: 70 ns access time meets real-time boot timing budgets; 128-bit protection register stores cryptographic keys for secure OTA update verification. |
| Medical Device Configuration Storage | Networking Equipment Boot Image |
Use Scenario: Retaining device-specific calibration, user preferences, and regulatory configuration data in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, long-life parameter storage with Softlock for frequent recalibration and Hardlock for immutable safety thresholds. Use Value: Dual-lock mechanism isolates critical safety data (Hardlock + WP) from user-modifiable settings (Softlock), satisfying IEC 62304 traceability. | Use Scenario: Hosting primary boot image and fail-safe recovery firmware in enterprise switches and routers with hot-swap capability. IC Role / Device Role / Timing Role: Parallel Flash memory mapped into CPU address space; Erase Suspend enables concurrent firmware download and active packet processing. Use Value: Suspend/resume functionality allows uninterrupted network operation during firmware upgrades - zero downtime maintenance window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF1601C-70-4C-EKE | Same density (16Mbit), 70 ns access, but uses SST's SuperFlash technology; no VPP pin; 3.0–3.6V only; lacks CFI and 128-bit protection register. | Lower cost for basic boot storage; no suspend/resume or hardware sector lock - unsuitable for secure or multitasking environments. | Select when CFI, suspend, or protection register are unnecessary and board space permits SST's 48-TSOP package. |
| MX29LV160ETTI-70G | 16Mbit, 70 ns, 2.7–3.6V; includes CFI and sector protection; no VPP pin; no 128-bit register; erase endurance rated at 100K cycles same as AT49BV160DT-70TU. | Compatible command set and pinout for most legacy designs; lacks VPP acceleration and dual-lock flexibility - limited for high-security use cases. | Choose for drop-in replacement where VPP and 128-bit security are not required; verified TSOP-48 pin compatibility. |
Compared with SST39VF1601C-70-4C-EKE and MX29LV160ETTI-70G, the AT49BV160DT-70TU uniquely delivers VPP-accelerated programming, dual-mode sector locking (Softlock/Hardlock), and a factory-seeded 128-bit protection register - making it the only option among the three qualified for secure, field-upgradable embedded systems with strict data integrity requirements.
Availability
AT49BV160DT-70TU is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, and medical device configuration storage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT49BV160DT-70TU 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
Microchip Technology acquired Atmel in 2016 and maintains full technical and supply chain responsibility for the AT49BV160DT-70TU. Microchip is a global leader in microcontrollers, analog, and Flash memory solutions for industrial, automotive, and consumer applications.
The AT49BV160D(T) family was designed specifically for reliable, in-system programmable boot code storage in resource-constrained embedded systems - emphasizing sector-level security, low-voltage operation, and interoperability via CFI.
FAQ
What is the function of the VPP pin on the AT49BV160DT-70TU?
The VPP pin on the AT49BV160DT-70TU serves dual roles: it enables write protection when held below 0.4V (inhibiting all program/erase operations), and accelerates dual-word programming when supplied at 10.0V. Unlike standard 3.3V-only Flash devices, AT49BV160DT-70TU requires explicit VPP voltage control for full functionality - leaving VPP floating is prohibited per datasheet specification.
Does the AT49BV160DT-70TU support true pin-to-pin compatibility with the SST39VF1601C-70-4C-EKE?
No, the AT49BV160DT-70TU is not pin-to-pin compatible with the SST39VF1601C-70-4C-EKE. While both use 48-pin TSOP packages, AT49BV160DT-70TU includes dedicated VPP and WP pins absent in the SST part. Additionally, the SST device lacks CFI support, suspend/resume commands, and the 128-bit protection register - requiring PCB and firmware modifications for substitution.
How does sector protection work on the AT49BV160DT-70TU?
The AT49BV160DT-70TU implements two independent sector protection modes: Softlock (software-unlockable via 60h/D0h command) and Hardlock (hardware-gated by WP pin state). At power-up, all sectors default to Softlock. Hardlock becomes active only after issuing the 60h/2Fh command; its effect depends on WP: low = permanent lock, high = unlockable. This dual-layer scheme enables secure bootloader + updatable application partitioning.
Can the AT49BV160DT-70TU be used in a 5V system?
No, the AT49BV160DT-70TU is strictly a 3.0V-only Flash memory. Its absolute maximum VCC rating is 3.6V, and operation outside 2.65–3.6V violates specifications. While input pins (A0–A19, CE, OE, WE) tolerate up to 5.5V, VCC, VCCQ, and VPP must remain within their defined ranges. Interfacing with 5V logic requires level translation on all control and address lines.
What is the purpose of the 128-bit protection register in the AT49BV160DT-70TU?
The 128-bit protection register in the AT49BV160DT-70TU consists of two 64-bit sectors: Sector A (factory-programmed, unchangeable unique ID) and Sector B (user-programmable and lockable). Sector B can be written using the C0h command and permanently locked via the Lock Protection Register command. This structure supports secure key storage, device authentication, and anti-counterfeiting - critical for regulated medical and automotive applications.
AT49BV160DT-70TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 120µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
AT49BV160DT-70TU FAQ
1.How can I place an order for AT49BV160DT-70TU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT49BV160DT-70TU 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 AT49BV160DT-70TU reliable?
The price and inventory of AT49BV160DT-70TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT49BV160DT-70TU is usually 5 days.
3.What payment methods are accepted for AT49BV160DT-70TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT49BV160DT-70TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT49BV160DT-70TU?
AT49BV160DT-70TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT49BV160DT-70TU 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 AT49BV160DT-70TU?
For technical support, including AT49BV160DT-70TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT49BV160DT-70TU requirements.
6.How does Aetrix verify that AT49BV160DT-70TU is sourced from the original manufacturer or authorized distributors?
All AT49BV160DT-70TU 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 AT49BV160DT-70TU meets industry standards.
7.What is the process for return or replacement of AT49BV160DT-70TU?
All AT49BV160DT-70TU units undergo pre-shipment inspection (PSI). If there is an issue with AT49BV160DT-70TU, 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 AT49BV160DT-70TU part is unused and in its original packaging.
Return procedure for AT49BV160DT-70TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT49BV160DT-70TU 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…
