SST39VF3201C-70-4I-EKE - 32Mbit 70ns NOR Flash MPF+ | Microchip
Артикул: SST39VF3201C-70-4I-EKE ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.42 | $34,20 |
| 100 | $2.95 | $295,00 |
| 500 | $2.65 | $1.325,00 |
| 1.000 | $2.4 | $2.400,00 |
SST39VF3201C-70-4I-EKE Обзор
A NOR Flash is a non-volatile memory that supports random read access at byte or word granularity, executes code directly in-place (XIP) without shadowing to RAM, and is electrically erasable in sectors. Within the memory hierarchy it sits below SRAM/DRAM and above serial EEPROM/Flash, offering higher density than EEPROM with true random-access read performance. The MPF+ family extends the standard SST39VF3201 with extended endurance and faster word-program times for industrial embedded designs.
Key features include 70 ns typical access time from address valid to data valid, sector-erase architecture (uniform 2KWord sectors), typical word-program time of 7 microseconds, sector-erase suspend/resume for background erase, low active current of approximately 6 mA, and standby current in the microamp range. The 48-pin TSOP I package (12 mm x 20 mm) conforms to JEDEC standard pin assignments for x16 flash memories and supports hardware data protection via CE# and WP# pins.
Typical applications include firmware/code storage in industrial controllers, automotive infotainment and telematics (where qualified part numbers are used), networking equipment boot ROM, point-of-sale terminals, and consumer electronics running Linux/uClinux. The wide 3.3V supply range simplifies integration with 3.3V microcontrollers such as PIC32, SAMA5, and STM32 families. The sector architecture enables EEPROM emulation and parameter storage alongside program code.
When designing with this device, observe VCC ramp-up requirements and ensure CE# and OE# toggle discipline during reads. For endurance-sensitive designs, distribute writes across sectors and use the software data-protection algorithm documented in the datasheet. A decoupling capacitor of 0.1 microfarad placed close to VCC is recommended. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet.
Аналоги без доработки для SST39VF3201C-70-4I-EKE — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
SST39VF3201C-70-4I-EKE-T
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SST39VF3201C-55-4I-EKE
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SST39VF3202C-70-4I-EKE
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SST39VF3201C-70-4I-B3KE
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MX29LV320CTTI-70G
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W29GL320CBTS-70
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SST39VF3201C-70-4I-EKE Максимальные параметры и электрические характеристики
| Тип памяти | NOR Flash (Multi-Purpose Flash Plus, MPF+) |
| Размер памяти | 32 Mbit (4 Mbyte) |
| Memory Organization | 2M x 16 |
| Technology | CMOS SuperFlash (split-gate, thick-oxide tunneling injector) |
| Access Time | 70 ns (typical, address to data) |
| Supply Voltage (VCC) | 2.7 V to 3.6 V |
| Тип интерфейса | Parallel (x16) |
| Sector Architecture | Uniform 2 KWord sectors |
| Program Time (Word) | 7 microseconds (typical) |
| Active Read Current | 6 mA (typical) |
| Диапазон рабочих температур | -40C to +85C (industrial, "I" designator) |
| Корпус | 48-pin TSOP Type I (EKE suffix) |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
| JEDEC Pinout | Standard x16 flash pin assignments |
Конфигурация выводов SST39VF3201C-70-4I-EKE
| Контакт 1 | A15 — Address input A15 |
| Контакт 2 | A16 — Address input A16 |
| Контакт 3 | A17 — Address input A17 |
| Контакт 4 | A18 — Address input A18 |
| Контакт 5 | A19 — Address input A19 |
| Контакт 6 | A20 — Address input A20 |
| Контакт 7 | NC — Not connected (per datasheet) |
| Контакт 8 | NC — Not connected (per datasheet) |
| Контакт 9 | RESET# — Hardware reset, active low |
| Контакт 10 | NC — Not connected (per datasheet) |
| Контакт 11 | WP# — Write protect, active low |
| Контакт 12 | NC — Not connected (per datasheet) |
| Контакт 13 | NC — Not connected (per datasheet) |
| Контакт 14 | NC — Not connected (per datasheet) |
| Контакт 15 | RY/BY# — Ready/Busy output, active low when busy |
| Контакт 16 | A0 — Address input A0 |
| Контакт 17 | A1 — Address input A1 |
| Контакт 18 | A2 — Address input A2 |
| Контакт 19 | A3 — Address input A3 |
| Контакт 20 | A4 — Address input A4 |
| Контакт 21 | A5 — Address input A5 |
| Контакт 22 | A6 — Address input A6 |
| Контакт 23 | A7 — Address input A7 |
| Контакт 24 | OE# — Output enable, active low |
| Контакт 25 | DQ0 — Data I/O 0 |
| Контакт 26 | DQ1 — Data I/O 1 |
| Контакт 27 | DQ2 — Data I/O 2 |
| Контакт 28 | DQ3 — Data I/O 3 |
| Контакт 29 | DQ4 — Data I/O 4 |
| Контакт 30 | DQ5 — Data I/O 5 |
| Контакт 31 | DQ6 — Data I/O 6 |
| Контакт 32 | DQ7 — Data I/O 7 |
| Контакт 33 | DQ8 — Data I/O 8 |
| Контакт 34 | DQ9 — Data I/O 9 |
| Контакт 35 | DQ10 — Data I/O 10 |
| Контакт 36 | DQ11 — Data I/O 11 |
| Контакт 37 | DQ12 — Data I/O 12 |
| Контакт 38 | DQ13 — Data I/O 13 |
| Контакт 39 | DQ14 — Data I/O 14 |
| Контакт 40 | DQ15 — Data I/O 15 |
| Контакт 41 | GND — Ground |
| Контакт 42 | WE# — Write enable, active low |
| Контакт 43 | A8 — Address input A8 |
| Контакт 44 | A9 — Address input A9 |
| Контакт 45 | A10 — Address input A10 |
| Контакт 46 | A11 — Address input A11 |
| Контакт 47 | A12 — Address input A12 |
| Контакт 48 | A13 — Address input A13 |
| Контакт 49 | A14 — Address input A14 |
| Контакт 50 | CE# — Chip enable, active low |
| Контакт 51 | VCC — Power supply (2.7V to 3.6V) |
Типичное применение
SST39VF3201C-70-4I-EKE подходит для 6 применениеs: Industrial Embedded Firmware Storage, Networking Equipment Boot ROM, Point-of-Sale Terminal Data Logging, Automotive Infotainment Code Storage, Consumer Electronics Firmware Hub, IoT Edge Gateway Boot and Storage.
Industrial Embedded Firmware Storage
The SST39VF3201C-70-4I-EKE is ideal for industrial embedded firmware storage, providing 4 Mbytes of in-place-executable (XIP) code space for microcontrollers such as the Microchip PIC32MZ or SAM family. Its 70 ns access time eliminates wait states for Cortex-M class MCUs running up to 14 MHz and adds minimal wait states at higher frequencies. The 2.7V-3.6V supply aligns directly with 3.3V MCU rails, removing level-shifters, and the 48-TSOP I footprint is JEDEC-standard for layout reuse across product variants.
Рекомендуется
Networking Equipment Boot ROM
Routers, switches, and baseband cards commonly boot from parallel NOR Flash for deterministic cold-start times below 200 ms. The SST39VF3201C-70-4I-EKE supplies 4 Mbytes of boot loader plus early network-stack image space in a footprint compatible with the JEDEC x16 standard. The sector-erase suspend/resume feature enables field firmware updates without taking the network down, and the industrial -40C to +85C rating tolerates switch-card thermal environments. Hardware WP# pin allows field engineers to lock the bootloader against accidental overwrite.
Рекомендуется
Point-of-Sale Terminal Data Logging
POS terminals require reliable non-volatile storage for transaction logs, configuration, and firmware. The SST39VF3201C-70-4I-EKE provides 4 Mbytes split across uniform 2 KWord sectors ideal for circular-log file structures and EEPROM emulation. Its 7 microseconds word-program time keeps transaction-recording latency low, and sector erase can complete in the background while new transactions are buffered to a free sector. The industrial temperature grade supports indoor retail environments, and the RoHS-compliant lead-free TSOP package meets global retail hardware standards.
Рекомендуется
Automotive Infotainment Code Storage
The SST39VF3201C-70-4I-EKE serves as code storage in non-safety-critical automotive subsystems such as infotainment head units, instrument-cluster secondary displays, and telematics control units. With 4 Mbytes in a 2M x 16 organization and 70 ns access time, it hosts real-time operating systems (RTOS), GUI assets, and CAN/J1939 stack firmware. Hardware data protection via WP# prevents accidental boot-region corruption. Note: for under-hood or safety-critical applications, verify with Microchip FAE whether an AEC-Q100 qualified variant of the SST39 family is required instead of this industrial-grade part.
Рекомендуется
Consumer Electronics Firmware Hub
Consumer products such as set-top boxes, home appliances with displays, and educational electronics benefit from the SST39VF3201C-70-4I-EKE's combination of low cost, high density, and simple parallel interface. The 4 Mbyte capacity holds full-feature firmware plus localization assets, while the uniform sector layout supports dual-bank A/B firmware updates for fail-safe field upgrades. The single 2.7V-3.6V supply eliminates boost converters common in 1.8V flash designs, reducing BOM cost in price-sensitive consumer markets.
Рекомендуется
IoT Edge Gateway Boot and Storage
Industrial IoT gateways use parallel NOR Flash as both a fast-deterministic boot device and EEPROM-emulation storage for configuration, keys, and logs. The SST39VF3201C-70-4I-EKE provides 4 Mbytes to host a small Linux distribution (uClinux) plus persistent data partitions in a single chip. Its 70 ns access suits lower-cost Cortex-A5 gateways, and the 48-TSOP I package is widely accepted by gateway reference designs. Sector erase suspend enables OTA firmware updates while the gateway continues routing traffic, minimizing service interruption.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для SST39VF3201C-70-4I-EKE — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | SST39VF3201C-70-4I-EKE-T | SST39VF3201C-55-4I-EKE | SST39VF3202C-70-4I-EKE | MX29LV320CTTI-70G | W29GL320CBTS-70 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Macronix | Winbond |
| Package | 48-pin TSOP Type I | 48-pin TSOP Type I - same | 48-pin TSOP Type I - same | 48-pin TSOP Type I - same | 48-pin TSOP Type I - same | 48-pin TSOP Type I - same |
| Memory Size | 32 Mbit (2M x 16) | 32 Mbit (2M x 16) | 32 Mbit (2M x 16) | 32 Mbit (2M x 16) | 32 Mbit (2M x 16) | 32 Mbit (2M x 16) |
| Access Time | 70 ns | 70 ns | 55 ns (faster) | 70 ns | 70 ns | 70 ns |
| Supply Voltage | 2.7V to 3.6V | 2.7V to 3.6V | 2.7V to 3.6V | 2.7V to 3.6V | 2.7V to 3.6V | 2.7V to 3.6V |
| Sector Architecture | Top boot block (uniform 2KWord) | Top boot block | Top boot block | Bottom boot block (different) | Top boot block | Bottom boot block |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Ключевые отличия
- Top boot-block sector architecture (против SST39VF3202C-70-4I-EKE)
- Single 2.7V-3.6V supply (no 12V VPP) (против Legacy 5V flash (e.g., AM29F040))
- SuperFlash split-gate cell technology (против Conventional NOR floating-gate flash)
Заметки по проектированию
Place a 0.1 microfarad decoupling capacitor as close as possible to the VCC pin (pin 51) and a bulk 4.7 microfarad capacitor on the same VCC trace. During program and erase operations the device can draw transient currents exceeding 30 mA, so keep the VCC trace impedance low with a wide polygon and multiple vias. Use a star-ground topology with the flash GND (pin 41) tied directly to the ground plane to avoid ground bounce affecting WE# and OE# timing margins.
Route address and data lines with matched lengths (within +/- 2 cm) to preserve the 70 ns access timing budget. Place series 33 ohm damping resistors near the MCU outputs on DQ lines if the bus length exceeds 10 cm to reduce ringing. Keep CE#, OE#, and WE# traces short and free of stubs - any glitch on these control lines can trigger unintended program or erase cycles that corrupt adjacent sectors.
Do not leave WE# or CE# floating during power-up; tie them high through a 10 kilohm pull-up to VCC to prevent inadvertent writes. Do not attempt to program or erase during the VCC ramp-up window (VCC must stabilize within 2.7V-3.6V for at least 1 ms before any command sequence). Always poll the toggle bit or DQ7 status rather than using fixed delays - erase operations can take 25-50 ms typical, longer on worn sectors.
Follow JEDEC standard x16 flash layout guidelines: pin 1 orientation marker (dot or notch) must be visible after placement for inspection. Maintain at least 0.5 mm clearance between flash pins and adjacent high-voltage or high-current signals. If using both top and bottom boot-block variants in the same PCB family, use a stuffing option rather than redesigning the layout - the only differences are firmware-side sector addressing.
Информация о соответствии
RoHS compliant per Microchip product page. Industrial temperature grade only - for AEC-Q100 qualified automotive variants, contact Microchip FAE. JEDEC-standard pinout per x16 flash standard. REACH compliance per Microchip product page; halogen-free status not explicitly stated in verified data.
