My Inquiry
My Account
Microchip Technology SST38VF6403BT-70I/CD
- Part No.:
- SST38VF6403BT-70I/CD
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
SST38VF6403BT-70I/CD.pdf
- Description:
- IC FLASH 64MBIT PARALLEL 48TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,989
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SST38VF6403BT-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 at 2.7–3.6 V, delivers 70 ns read access time, supports 100,000 erase/write cycles, and features hardware boot block protection with WP# pin and RY/BY# status output - used in industrial controllers requiring field-upgradable firmware.
For engineers reviewing the SST38VF6403BT-70I/CD datasheet, SST38VF6403BT-70I/CD pinout, SST38VF6403BT-70I/CD application, or SST38VF6403BT-70I/CD equivalent, key selection considerations include its 48-lead TSOP package, uniform/non-uniform block protection options, 8-word page read buffer, 1.75 μs/write-buffer programming rate, and CFI/JEDEC x16 flash compatibility.
Technical Context
This device implements Microchip's SuperFlash split-gate cell technology, enabling fixed erase/program times independent of cycle count - unlike conventional flash where timing degrades over endurance life. Its architecture integrates latched address/data paths, on-chip VPP generation, and dual-status monitoring via DQ6/DQ7 polling and RY/BY# output.
The SST38VF6403BT-70I/CD uses a non-uniform memory map: boot blocks are 4 KWord (B0–B1), while remaining blocks are 32 KWord (B2–B134); it supports Erase-Suspend/Resume for concurrent read/program during background erase, and Write-Buffer Programming with 16-word buffer depth for accelerated multi-word writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (4M × 16), providing 8 MB of nonvolatile storage for firmware or configuration data |
| Read Access Time | 70 ns - determines minimum CPU wait-state insertion for synchronous bus interfacing |
| Page Read Speed | 25 ns per word (8-word page) - enables burst reads without address re-latching, improving throughput |
| Erase Endurance | 100,000 cycles minimum - supports frequent field updates in programmable logic controllers |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage applications |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V system rails and tolerant of brown-out conditions |
| Standby Current | 5 μA typical - enables ultra-low-power retention in battery-backed or energy-harvesting systems |
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 supporting full 4M-word addressing; A21–A15 select block during erase |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with tri-state outputs controlled by OE# and CE# |
| CE# | Chip Enable | Active-low chip select; device enters standby when high, enabling multi-chip memory decoding |
| OE# | Output Enable | Active-low output gate; controls data bus drive without affecting internal state or power mode |
| WE# | Write Enable | Active-low control for write command latching; timing-critical for command sequence execution |
| WP# | Write Protect | Hardware boot block lock: grounded to prevent accidental erase/program of B0–B1 (4 KWord each) |
| RST# | Reset | Active-low hardware reset that forces return to read mode, clearing pending operations |
| RY/BY# | Ready/Busy | Open-drain status output indicating active program/erase; used for interrupt-driven host synchronization |
| VDD / VSS | Power / Ground | Single 2.7–3.6 V supply; decoupling required per JEDEC layout guidelines for noise immunity |
| NC | No Connection | Unbonded pin - must remain floating; no PCB trace or pull-up/down required |
Key Features
| Feature | Design Value |
|---|---|
| Write-Buffer Programming | 16-word buffer with 1.75 μs/word effective programming - reduces firmware update time by >80% vs. single-word writes |
| Erase-Suspend/Resume | Allows real-time read/program access to non-erasing blocks during background 18 ms block erase - critical for deterministic response in motion control |
| Auto Low Power Mode | 5 μA standby current activated after valid read - eliminates need for software-controlled power-down sequences |
| Security-ID & OTP | 128-bit unique ID + 248-word user one-time-programmable area - enables secure device binding and calibration storage |
| CFI Compliance | JEDEC-standard Common Flash Interface - enables plug-and-play integration with standard flash-aware bootloaders and OS drivers |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers deployed in factory automation environments with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware write protection on boot sectors to prevent corruption during power interruption or ESD events. Use Value: 100,000-cycle endurance and >100-year data retention ensure 15+ year field life without refresh; 70 ns read access meets real-time scan cycle timing budgets. |
Use Scenario: Holding calibrated sensor coefficients and regulatory-compliant device configuration profiles in portable diagnostic equipment subject to IEC 60601-1 safety requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter storage using OTP and hardware WP# lock on boot region to prevent unauthorized reconfiguration. Use Value: 128-bit unique ID enables device-specific cryptographic binding; 5 μA auto-low-power mode extends battery runtime between calibrations. |
| Automotive Infotainment Boot ROM | Network Router Firmware Image |
Use Scenario: Hosting primary bootloader and fail-safe recovery image in automotive head units operating across -40°C to +105°C junction temperature range (I-grade). IC Role / Device Role / Timing Role: Dual-boot block architecture (B0/B1 as 4 KWord protected boot sectors) enables A/B firmware partitioning and safe over-the-air updates. Use Value: Non-uniform block sizing allows granular protection of critical boot code while permitting larger 32 KWord blocks for application firmware - optimizing space and security. |
Use Scenario: Storing dual firmware images and configuration tables in enterprise-grade Ethernet routers requiring zero-downtime upgrades and rollback capability. IC Role / Device Role / Timing Role: High-speed Page Read (25 ns) and Write-Buffer Programming accelerate firmware load and commit operations during maintenance windows. Use Value: 8-word page buffer and 1.75 μs/write-buffer rate cut image flashing time by 4× vs. legacy parallel flash - reducing service window duration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SST39VF6401B-70-4C-EKE | Uniform 32 KWord block architecture (no 4 KWord boot blocks); identical 64 Mbit density, 70 ns access, and TSOP48 package | Lacks non-uniform boot protection - requires software-managed lock bits instead of hardware WP#-based boot block lock | Select when boot block granularity is not required and cost-optimized uniform erase is preferred |
| MX29LV640ETTI-70G | 64 Mbit x16, 70 ns access, but uses different command set (non-CFI); 48-TSOP package; 100K endurance, 20-year retention (vs. 100-year) | Requires custom driver adaptation due to non-standard command protocol; no Erase-Suspend support | Select only if existing platform already uses Macronix command set and CFI compatibility is not required |
Compared with SST38VF6403BT-70I/CD, SST39VF6401B-70-4C-EKE offers simpler uniform erase but forfeits hardware-enforced boot protection, while MX29LV640ETTI-70G trades CFI compliance and Erase-Suspend capability for marginally lower cost - making SST38VF6403BT-70I/CD optimal for safety-critical or field-upgrade-intensive designs.
Availability
SST38VF6403BT-70I/CD is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, automotive infotainment systems, and network infrastructure requiring stable component supply across extended product lifecycles.
Supply support for SST38VF6403BT-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 devices, and memory solutions, with emphasis on reliability, low-power design, and long-term product availability.
The SST38VF6403BT-70I/CD belongs to Microchip's Advanced MPF+ Flash family, engineered for embedded systems demanding high endurance, deterministic timing, and robust data integrity in harsh operating environments.
FAQ
What is the exact memory organization of the SST38VF6403BT-70I/CD?
The SST38VF6403BT-70I/CD is organized as 4M × 16, delivering 64 Mbit (8 MB) total capacity. Its memory map features non-uniform blocks: two 4 KWord boot blocks (B0 and B1) plus 133 × 32 KWord main blocks (B2–B134), enabling fine-grained protection of critical startup code while optimizing erase efficiency for application data.
Does the SST38VF6403BT-70I/CD support hardware write protection for boot sectors?
Yes, the SST38VF6403BT-70I/CD provides hardware boot block protection via the WP# pin: when grounded, it locks B0 and B1 (each 4 KWord) against accidental erase or program operations. This complements software-based individual block protection and password mechanisms for layered security.
How does the Write-Buffer Programming feature improve performance in the SST38VF6403BT-70I/CD?
The SST38VF6403BT-70I/CD's Write-Buffer Programming enables up to 16 words to be loaded into an internal buffer and committed to flash in a single operation, achieving 1.75 μs per word - over 4× faster than standard 7 μs word-program timing. This significantly accelerates firmware updates and configuration writes.
What is the purpose of the RY/BY# pin on the SST38VF6403BT-70I/CD?
The RY/BY# pin on the SST38VF6403BT-70I/CD is an open-drain ready/busy indicator: it asserts low during active program or erase operations and returns high upon completion. This enables interrupt-driven host synchronization without polling, reducing CPU overhead and improving real-time determinism.
Is the SST38VF6403BT-70I/CD compliant with industry-standard flash interfaces?
Yes, the SST38VF6403BT-70I/CD is fully CFI (Common Flash Interface) compliant and adheres to JEDEC standard x16 flash pinouts and command sets. This ensures interoperability with standard flash-aware bootloaders, BIOS implementations, and memory test utilities without custom driver development.
SST38VF6403BT-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)
SST38VF6403BT-70I/CD FAQ
1.How can I place an order for SST38VF6403BT-70I/CD through Aetrix?
Please submit a Request for Quotation (RFQ) for SST38VF6403BT-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 SST38VF6403BT-70I/CD reliable?
The price and inventory of SST38VF6403BT-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 SST38VF6403BT-70I/CD is usually 5 days.
3.What payment methods are accepted for SST38VF6403BT-70I/CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST38VF6403BT-70I/CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST38VF6403BT-70I/CD?
SST38VF6403BT-70I/CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST38VF6403BT-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 SST38VF6403BT-70I/CD?
For technical support, including SST38VF6403BT-70I/CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST38VF6403BT-70I/CD requirements.
6.How does Aetrix verify that SST38VF6403BT-70I/CD is sourced from the original manufacturer or authorized distributors?
All SST38VF6403BT-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 SST38VF6403BT-70I/CD meets industry standards.
7.What is the process for return or replacement of SST38VF6403BT-70I/CD?
All SST38VF6403BT-70I/CD units undergo pre-shipment inspection (PSI). If there is an issue with SST38VF6403BT-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 SST38VF6403BT-70I/CD part is unused and in its original packaging.
Return procedure for SST38VF6403BT-70I/CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST38VF6403BT-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…
