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AT49BV160DT-70TU
Microchip Technology
IC FLASH 16MBIT PARALLEL 48TSOP
1763 Pcs New Original In Stock
FLASH Memory IC 16Mbit Parallel 70 ns 48-TSOP
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AT49BV160DT-70TU
Product Overview
1274750
DiGi Electronics Part Number
AT49BV160DT-70TU-DGManufacturer
Microchip Technology
AT49BV160DT-70TU
Description
IC FLASH 16MBIT PARALLEL 48TSOPInventory
1763 Pcs New Original In Stock
FLASH Memory IC 16Mbit Parallel 70 ns 48-TSOP
Quantity
Minimum 1
Minimum 1
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AT49BV160DT-70TU Technical Specifications
Category
Memory, Memory
Packaging
-
Series
-
Product Status
Obsolete
DiGi-Electronics Programmable
Not Verified
Memory Type
Non-Volatile
Memory Format
FLASH
Technology
FLASH
Memory Size
16Mbit
Memory Organization
1M x 16
Memory Interface
Parallel
Write Cycle Time - Word, Page
120µs
Access Time
70 ns
Voltage - Supply
2.65V ~ 3.6V
Operating Temperature
-40°C ~ 85°C (TC)
Mounting Type
Surface Mount
Package / Case
48-TFSOP (0.724", 18.40mm Width)
Supplier Device Package
48-TSOP
Base Product Number
AT49BV160
Datasheet & Documents
HTML Datasheet
AT49BV160DT-70TU-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.32.0071
Additional Information
Standard Package
96
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Le processus d'expédition est fluide et leur emballage respectueux de l'environnement est un grand avantage.
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
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Frequently Asked Questions (FAQ)
Can the AT49BV160DT-70TU be used as a drop-in replacement for the Intel E28F160J3A in an existing high-reliability industrial design, and what are the key compatibility risks?
While the AT49BV160DT-70TU and Intel E28F160J3A both offer 16Mbit parallel flash in 48-TSOP packages, they are not fully pin-compatible due to differences in control signal definitions (e.g., BYTE# mode handling and READY#/BUSY# behavior). The AT49BV160DT-70TU uses a different command set structure and has a shorter access time (70 ns vs. 120 ns), which may expose timing marginality in legacy bus designs. Additionally, the Microchip device operates at 2.65V–3.6V, requiring verification of voltage compatibility with the Intel part's 3.0V–3.6V range. Carefully validate the reset timing, write cycle timing, and command sequence in your application firmware and ensure glue logic (if any) accommodates signal timing differences to avoid unintended writes or boot failures.
What are the main design-in risks when using the AT49BV160DT-70TU in a new product given its obsolete status, and how can supply chain continuity be managed?
The primary risk with using the AT49BV160DT-70TU in new designs is long-term availability due to its obsolete status. While 1,661 units are available now, future procurement is uncertain, increasing end-of-life risks for production scalability. To mitigate this, secure a lifetime buy or identify a viable upgrade path such as the SST39VF1601C or Cypress (Infineon) S29AL016D, which offer similar 16Mbit parallel interfaces with modern support. Design with socketing or footprint compatibility (48-TSOP) for second sourcing, and verify write protection, sector architecture, and timing margins in your controller interface to ensure drop-in capability if migration is needed.
How does the 70 ns access time of the AT49BV160DT-70TU impact system integration with microcontrollers like the NXP MPC8270 in high-speed parallel bus applications?
The 70 ns access time of the AT49BV160DT-70TU is suitable for integration with microcontrollers such as the NXP MPC8270 operating with moderate bus clock rates (e.g., 33 MHz, 30 ns cycle time), but timing closure must be verified. Ensure the MCU's external memory interface (EMI) timing, including address setup/hold and OE# propagation delays, accounts for board trace lengths and loading. Use series termination resistors if signal integrity is marginal, and validate read operations under worst-case conditions (max temperature, min VCC). Avoid operating near the edge of timing margins—consider adding wait states if your boot or firmware execution is timing-critical.
What are the implications of the AT49BV160DT-70TU’s MSL 3 rating for manufacturing, and how should baking and floor life be managed during assembly?
The AT49BV160DT-70TU has a Moisture Sensitivity Level (MSL) 3 rating, allowing a 168-hour (7-day) floor life at ≤30°C/60% RH before exposure to reflow. If stored outside moisture-barrier bags beyond this window, devices must be baked at 125°C for 24 hours before soldering to avoid 'popcorning' during reflow. Always monitor humidity indicator cards in packaging, and use dry cabinets or desiccant for storage. Prevent ESD damage with proper handling, and complete reflow within the recommended profile—especially with the 18.4mm-wide TSOP package, which is susceptible to warpage and tombstoning on thermally uneven boards.
When replacing a failing AT49BV160DT-70TU in a field-deployed system, what reliability and wear-out failure modes should be checked in the surrounding circuit?
When replacing a failed AT49BV160DT-70TU, investigate potential root causes beyond the IC itself—common field failure modes include overvoltage stress from improper 3.3V regulation, inadequate decoupling leading to supply noise, and unintended write cycles due to misconfigured address latches or reset glitches. Check for corroded TSOP solder joints in high-humidity environments, and verify the integrity of the 0.1µF bypass capacitor near VCC. Also, confirm that the write protect logic functions correctly to avoid latent corruption. Since the device specifies 100K write/erase cycles, analyze firmware for excessive logging or configuration updates that could accelerate wear-out, especially in static boot code regions.
Quality Assurance (QC)
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AT49BV160DT-70TU CAD Models
Microchip Technology AT49BV160DT-70TU PCB symbols & footprints
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