My Inquiry
My Account
Microchip Technology SST38VF6402BT-70I/CD
- Part No.:
- SST38VF6402BT-70I/CD
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6402BT-70I/CD.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,414
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST38VF6402BT-70I/CD from Microchip Technology is a 64 Mbit (4M × 16) CMOS Advanced Multi-Purpose Flash Plus memory IC, designed for nonvolatile program/data storage in embedded systems. It operates from a single 2.7–3.6V supply, delivers 70 ns read access time, supports 100,000 erase/write cycles, and retains data for >100 years - enabling reliable firmware storage in industrial controllers and network boot applications.
For engineers reviewing the SST38VF6402BT-70I/CD datasheet, SST38VF6402BT-70I/CD pinout, SST38VF6402BT-70I/CD application, or SST38VF6402BT-70I/CD equivalent, key selection criteria include boot-block protection architecture, 16-word write-buffer programming (1.75 μs/word), erase-suspend/resume capability, and TSOP-48 package compatibility with legacy x16 memory interfaces.
Technical Context
This device implements SuperFlash split-gate cell technology for enhanced endurance and reduced energy per erase/program cycle. Its command-set conforms to JEDEC standard x16 flash pinouts and CFI, supporting hardware reset (RST#), write protect (WP#), and ready/busy (RY/BY#) signaling for robust system-level control.
The SST38VF6402BT-70I/CD features uniform 32 KWord block organization (128 blocks), with boot-block protection assigned to Block B127. It supports Page Read (25 ns per word, 8-word buffer), Word-Program (7 μs typical), and Block-Erase (18 ms typical), all verified via Data# Polling (DQ7), Toggle Bits (DQ6/DQ2), and RY/BY# output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware images or configuration tables. |
| Read Access Time | 70 ns - ensures compatibility with 14 MHz bus timing in legacy microcontroller interfaces. |
| Page Read Speed | 25 ns per word (8-word page) - accelerates sequential code fetch during boot or runtime execution. |
| Write Buffer Size | 16-word buffer - reduces host CPU overhead by batching writes; achieves 1.75 μs/word effective programming. |
| Endurance & Retention | 100,000 cycles minimum / >100 years data retention - validated for long-life industrial deployments without refresh. |
| Supply Voltage | 2.7–3.6V single supply - eliminates need for auxiliary voltage rails in 3.3V system designs. |
| Block Protection | Hardware boot-block (B127) + software individual-block lock - enables secure bootloader partitioning. |
Pinout & Package
Package: 48-lead TSOP (Thin Small Outline Package), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A21 | Address Inputs | 22-bit address bus (AMS = A21); selects 4M × 16 locations; A21–A15 define block address for erase operations. |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus; latched internally during write; tri-stated when CE# or OE# high. |
| CE# | Chip Enable | Active-low chip select; device enters standby (5 μA) when high; required low for all operations. |
| OE# | Output Enable | Active-low output gate; controls data bus drive; high disables outputs (high-Z state). |
| WE# | Write Enable | Active-low control for write/program/erase command latching; timing-critical for command sequence validity. |
| WP# | Write Protect | Active-low hardware lock for boot block (B127); prevents accidental erase/program when grounded. |
| RST# | Hardware Reset | Active-low signal forcing device into Read mode; used for recovery after power-up or error conditions. |
| RY/BY# | Ready/Busy | Open-drain status indicator: low = active program/erase; high = operation complete or idle. |
| VDD | Power Supply | 2.7–3.6V core supply; powers logic and memory array; decoupling required per layout guidelines. |
| VSS | Ground | Reference return path for all signals and power; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Erase-Suspend/Resume | Allows real-time read/program of non-erasing blocks during background erase - critical for multitasking firmware updates. |
| Auto Low Power Mode | Reduces active read current from 25 mA to 5 μA after valid access - cuts quiescent power in always-on systems. |
| 128-bit Unique ID | Factory-programmed serial number enabling device authentication and secure firmware binding. |
| Security-ID OTP Area | 248-word one-time-programmable space for keys or calibration data - isolated from main array for tamper resistance. |
| CFI Compliance | Enables automatic detection and configuration by BIOS/bootloader without hard-coded timing or command tables. |
Applications
| Industrial PLC Firmware Storage | Network Router Boot Memory |
|---|---|
|
Use Scenario: Storing field-upgradable firmware and configuration parameters in programmable logic controllers operating in harsh environments with wide temperature ranges. IC Role / Device Role / Timing Role: Nonvolatile boot and application code storage with hardware write protection on boot sector to prevent corruption during power loss. Use Value: 100,000-cycle endurance and >100-year data retention ensure lifetime reliability without replacement; 70 ns read access meets deterministic scan-cycle timing. |
Use Scenario: Hosting bootloader and OS kernel images in enterprise-grade routers requiring secure, fast boot and remote firmware patching. IC Role / Device Role / Timing Role: Primary x16 flash memory mapped at reset vector; supports Page Read for rapid instruction fetch and Write-Buffer Programming for efficient OTA updates. Use Value: Erase-suspend capability allows concurrent packet processing during background firmware update; RY/BY# enables precise interrupt-driven status polling. |
| Medical Diagnostic Equipment | Automotive Infotainment Head Unit |
|
Use Scenario: Storing calibrated sensor algorithms and regulatory-compliant diagnostic logs in Class II medical devices with strict data integrity requirements. IC Role / Device Role / Timing Role: Secure configuration and calibration storage using Security-ID OTP area and individual block software protection. Use Value: Password-protected block locking and irreversible boot-block locking meet IEC 62304 traceability and anti-tampering mandates. |
Use Scenario: Holding infotainment OS, UI assets, and vehicle-specific configuration in automotive head units subject to AEC-Q100 Grade 3 (-40°C to +85°C) requirements. IC Role / Device Role / Timing Role: High-reliability code storage with hardware reset (RST#) integration for fail-safe recovery after brown-out events. Use Value: TSOP-48 package supports automated optical inspection and reflow compatibility; 2.7–3.6V operation aligns with automotive 3.3V rail tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6402B-70-4C-EKE | Same 64 Mbit x16 density, 70 ns access, TSOP-48, but lacks RST# pin and erase-suspend feature. | Not suitable for systems requiring hardware reset recovery or concurrent read/erase operations. | Select only if RST# and erase-suspend are unused; verify WP#/block protection mapping matches B127 boot location. |
| MX29LV640ETTI-70G | 64 Mbit x16, 70 ns, TSOP-48, includes RST# and CFI, but endurance rated at 10,000 cycles (vs. 100,000) and no Auto Low Power mode. | Lower endurance limits field upgrade frequency; higher active current impacts battery-backed or low-power designs. | Prefer for cost-sensitive, low-cycle-count applications where 10k cycles suffice and 5 μA standby is not required. |
Compared with SST38VF6402BT-70I/CD, SST39VF6402B-70-4C-EKE omits critical reliability features (RST#, erase-suspend), while MX29LV640ETTI-70G trades endurance and ultra-low-power operation for broader vendor availability - making SST38VF6402BT-70I/CD optimal for long-life, safety-critical embedded firmware storage.
Availability
SST38VF6402BT-70I/CD is available at Aetrix Electronics and suitable for industrial PLC firmware storage, network router boot memory, medical diagnostic equipment, and automotive infotainment head units requiring stable component supply across extended product lifecycles.
Supply support for SST38VF6402BT-70I/CD 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 is a global semiconductor company specializing in microcontrollers, analog components, and memory solutions, with emphasis on reliability, longevity, and embedded-system integration.
The SST38VF6402BT-70I/CD belongs to Microchip's Advanced MPF+ Flash family, engineered specifically for high-endurance, low-power, and secure nonvolatile storage in mission-critical embedded applications.
FAQ
What is the boot block configuration of SST38VF6402BT-70I/CD?
The SST38VF6402BT-70I/CD uses Block B127 (32 KWord) as its hardware boot block, protected by the WP# pin when grounded. This matches the SST38VF6402B memory map where B127 is designated as the top boot block with VPB/NVPB support and write-protection enablement - ensuring safe bootloader execution and firmware integrity.
Does SST38VF6402BT-70I/CD support Page Read, and what is its performance benefit?
Yes, SST38VF6402BT-70I/CD supports Page Read with 25 ns per word access across an 8-word page. This reduces average instruction fetch latency by ~64% versus standard 70 ns random reads, accelerating boot sequences and real-time code execution in microcontroller-based systems without requiring external cache.
How does the Write-Buffer Programming feature improve efficiency in SST38VF6402BT-70I/CD?
SST38VF6402BT-70I/CD's 16-word Write Buffer reduces effective programming time to 1.75 μs per word - over 4× faster than single-word programming (7 μs). This minimizes host CPU wait states during firmware updates and enables burst-write throughput up to 5.7 MB/s, significantly improving field upgrade speed and system responsiveness.
What protection mechanisms does SST38VF6402BT-70I/CD offer against accidental writes?
SST38VF6402BT-70I/CD provides three-tiered protection: (1) hardware WP# pin locking of boot block B127, (2) software-controlled individual 32 KWord block locking, and (3) password-protected access to protection registers. All are implemented on-die with no external components required, meeting IEC 62304 and ISO 26262 functional safety requirements.
Is SST38VF6402BT-70I/CD compatible with JEDEC-standard x16 flash interfaces?
Yes, SST38VF6402BT-70I/CD fully complies with JEDEC standard pinouts and command sets for x16 parallel flash memory, including CFI compliance. Its TSOP-48 footprint, address/data bus layout, and control signal timing (CE#, OE#, WE#, RY/BY#) match industry-standard 64 Mbit x16 flash sockets, enabling drop-in replacement in existing designs.
SST38VF6402BT-70I/CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST38
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 64Mbit
- Memory Organization:
- 4M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- 70 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFBGA (6x8)
SST38VF6402BT-70I/CD FAQ
1.How can I place an order for SST38VF6402BT-70I/CD through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6402BT-70I/CD 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 SST38VF6402BT-70I/CD reliable?
The price and inventory of SST38VF6402BT-70I/CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST38VF6402BT-70I/CD is usually 5 days.
3.What payment methods are accepted for SST38VF6402BT-70I/CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6402BT-70I/CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6402BT-70I/CD?
SST38VF6402BT-70I/CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6402BT-70I/CD 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 SST38VF6402BT-70I/CD?
For technical support, including SST38VF6402BT-70I/CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6402BT-70I/CD requirements.
6.How does Aetrix verify that SST38VF6402BT-70I/CD is sourced from the original manufacturer or authorized distributors?
All SST38VF6402BT-70I/CD 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 SST38VF6402BT-70I/CD meets industry standards.
7.What is the process for return or replacement of SST38VF6402BT-70I/CD?
All SST38VF6402BT-70I/CD units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6402BT-70I/CD, 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 SST38VF6402BT-70I/CD part is unused and in its original packaging.
Return procedure for SST38VF6402BT-70I/CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST38VF6402BT-70I/CD 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…
