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STMicroelectronics STV0674T100
- Part No.:
- STV0674T100
- Manufacturer:
- STMicroelectronics
- Category:
- Specialized ICs
- Package:
- 100-LQFP
- Datasheet:
-
STV0674T100.pdf
- Description:
- IC VIDEO PROC MICROCTRL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,256
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Product details
Overview
STV0674T100 from STMicroelectronics is a tri-mode CMOS digital camera co-processor designed for integration with ST's CIF (352×288) and VGA (640×480) image sensors. It delivers hardware-accelerated color processing, Motion-JPEG compression, USB 1.1 interface, embedded 8052 microcontroller (32 KB ROM + 32 KB SRAM), and support for SDRAM, NAND Flash, SmartMedia, and EEPROM - enabling tethered webcam, digital still camera, and untethered camcorder functionality in a single chip.
For engineers reviewing the STV0674T100 datasheet, STV0674T100 pinout, STV0674T100 application, or STV0674T100 equivalent, key selection considerations include its dual-voltage operation (1.8 V core / 3.3 V I/O), integrated audio ADC/PWM (8–48 kHz sampling), sensor interface timing control, JPEG compression ratio adaptability (up to 100:1), and firmware boot priority sequence (EEPROM → NAND Flash → USB host).
Technical Context
The STV0674T100 integrates a dedicated video processor handling Bayer-to-YCbCr conversion, auto white balance, exposure/gain control, gamma correction, and peaking - all synchronized to sensor clocks via a 5-wire data bus and I²C configuration interface. Its video compressor performs real-time upscaling (e.g., QVGA→CIF), Motion-JPEG encoding using sequential DCT and Huffman, and dynamic compression ratio adjustment based on FIFO fill level and frame rate targets.
The embedded 8052 MCU executes firmware from ROM, SRAM, or external memory (EEPROM/NAND Flash/USB), with boot priority order strictly defined. Memory subsystems include SDRAM (x8/x16, PC66+), NAND Flash (32 Mbit–1 Gbit), SmartMedia (3.3 V only), and EEPROM (up to 512 Kbit), each with dedicated controllers and error resilience features for nonvolatile storage integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Image Sensor Support | CIF (352×288) and VGA (640×480) ST CMOS sensors with automatic exposure, gain, and white balance control |
| Video Compression | Motion-JPEG encoding with adaptive compression ratio up to 100:1; supports thumbnail generation for LCD preview |
| USB Interface | USB 1.1-compliant device interface with twin bulk endpoints, audio class compliance, and CRC5/CRC16 validation |
| Audio Capability | 16-bit delta-sigma ADC (8–48 kHz sampling) and PWM-based playback (8–44.1 kHz); differential/single-ended input support |
| Power Supplies | Dual-rail: 1.8 V ±0.15 V core (VDDC), 3.3 V ±0.3 V I/O (VDDI), plus separate 1.8 V PLL (VDDP) and 3.3 V audio (VDDA) supplies |
| Memory Interfaces | SDRAM (16–128 Mbit, x8/x16), NAND Flash (32 Mbit–1 Gbit), SmartMedia (4–128 MB, 3.3 V only), EEPROM (1 Kbit–512 Kbit) |
| Firmware Execution | 32 KB ROM (bootloader + base functions) + 32 KB SRAM (runtime code/data); boot source priority: EEPROM → NAND Flash → USB host |
Pinout & Package
STV0674T100 is housed in a 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are validated per STMicroelectronics' official STV0674 datasheet Rev. C (July 2003), Section 5.1–5.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDC, VSSC | Core power/ground | Supplies 1.8 V core logic and embedded 8052 MCU; requires local decoupling for low-noise operation |
| VDDI, VSSI | I/O power/ground | Supplies 3.3 V to USB transceiver, GPIOs, and digital interfaces; isolated from core supply |
| VDDP, VSSP | PLL analog power/ground | Provides clean 1.8 V bias to phase-locked loop for stable clock synthesis and jitter control |
| VDDA, VSSA | Audio analog power/ground | Dedicated 3.3 V supply for ADC/PWM audio front-end to minimize coupling noise into sampled signals |
| SDATA[4:0], SCLK, SSDA, SSCL | Sensor interface | 5-wire parallel video + clock + 2-wire I²C config bus for ST CMOS sensors; handles timing, exposure, and register access |
| D+, D− | USB differential pair | Full-speed (12 Mbps) USB 1.1 physical layer; integrated transceiver eliminates external PHY |
| XTAL_IN | Crystal oscillator input | Accepts 12 MHz fundamental-mode crystal for system clock generation; internal PLL multiplies to required frequencies |
| GPIO[7:0] | General-purpose I/O | Configurable as inputs/outputs under firmware control; used for buttons, LED indicators, flashgun trigger, or display interface |
Key Features
| Feature | Design Value |
|---|---|
| Hardware JPEG compression engine | Real-time Motion-JPEG encoding without CPU overhead; enables 30 fps VGA capture with host-side decode compatibility |
| Integrated audio subsystem | 16-bit delta-sigma ADC + PWM playback eliminates need for external audio codecs in cost-sensitive camera designs |
| Multi-memory architecture support | Simultaneous SDRAM (buffering), NAND Flash (nonvolatile storage), and SmartMedia (removable media) enable flexible BOM optimization |
| Firmware boot flexibility | Three-tier boot priority (EEPROM → NAND Flash → USB host) allows field-upgradable firmware and OEM customization without hardware change |
| Tri-mode operational capability | Single silicon platform supports USB-tethered webcam, standalone still camera, and untethered camcorder - reducing SKU count and development effort |
Applications
| USB Webcam with Audio | Dual-Mode Still Camera |
|---|---|
Use Scenario: Plug-and-play video conferencing camera connected directly to Windows PCs via USB cable, capturing synchronized video and microphone audio at up to 30 fps VGA resolution. IC Role / Device Role / Timing Role: Central co-processor managing sensor timing, YCbCr processing, JPEG compression, USB packetization, and audio sampling - all in hardware with minimal host CPU load. Use Value: Eliminates need for external video encoder, USB controller, or audio codec; reduces bill-of-materials by integrating functions previously requiring ≥4 discrete ICs. | Use Scenario: Portable digital camera with no PC connection required, storing JPEG still images to onboard SDRAM or NAND Flash, and supporting manual focus/exposure via pushbuttons. IC Role / Device Role / Timing Role: Image acquisition controller coordinating sensor readout, on-chip JPEG compression, memory write sequencing, and button-driven mode transitions. Use Value: Enables sub-$30 retail price point for entry-level still cameras by replacing FPGA + microcontroller + codec solutions with single-chip implementation. |
| Tri-Mode Camcorder | OEM Custom Imaging Module |
Use Scenario: Consumer camcorder recording 2+ minutes of QVGA video at 10 fps with simultaneous mono audio to removable SmartMedia card, then uploading to PC via USB. IC Role / Device Role / Timing Role: Real-time video/audio multiplexer, Motion-JPEG encoder, memory controller, and USB mass-storage-class device - operating autonomously during recording. Use Value: Achieves >120 seconds continuous record time on 128 MB SmartMedia using adaptive 15:1 compression, with zero host dependency during capture. | Use Scenario: Industrial inspection module embedding STV0674T100 with custom firmware to capture timestamped, calibrated images triggered by GPIO events and stored to NAND Flash for later retrieval. IC Role / Device Role / Timing Role: Deterministic image acquisition engine with precise sensor trigger timing, fixed-gain pipeline, and EEPROM-stored calibration parameters. Use Value: Provides repeatable exposure control and JPEG output consistency across units without requiring host software intervention or external timing sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital camera co-processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OV511+ (Omnivision) | USB 1.1 bridge + image processor combo; lacks integrated MCU, audio ADC/PWM, and NAND Flash controller | Requires external microcontroller and audio codec; supports only USB-tethered mode, no standalone recording | Choose when design prioritizes lowest component count for webcam-only use and accepts external firmware management |
| TS101 (Trident Microsystems) | Dedicated video processor with JPEG engine but no USB interface or memory controllers; requires companion USB microcontroller | Used in high-resolution digital cameras with proprietary host interfaces; no native USB mass storage or audio support | Choose for legacy embedded systems with existing USB stack and need for higher-resolution processing beyond VGA |
Compared with OV511+ and TS101, the STV0674T100 uniquely integrates MCU, USB 1.1, audio, and multi-memory controllers - enabling full tri-mode operation without companion ICs, whereas alternatives require external components to achieve comparable functionality.
Availability
STV0674T100 is available at Aetrix Electronics and suitable for USB webcam modules, consumer digital still cameras, tri-mode camcorders, and industrial imaging subsystems requiring stable component supply and long-term lifecycle support.
Supply support for STV0674T100 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and consumer ICs with strong IP in imaging, microcontrollers, and analog/mixed-signal technologies.
The STV0674 belongs to ST's Digital Imaging Co-Processor product line, designed specifically to reduce system cost and development time for low-to-mid-tier CMOS camera products targeting mass-market USB peripherals and portable imaging devices.
FAQ
What is the maximum supported sensor resolution and interface type?
The STV0674T100 supports STMicroelectronics' CIF (352×288) and VGA (640×480) CMOS image sensors exclusively. It uses a 5-wire parallel data interface (SDATA[4:0]) with dedicated sync signals (HSYNC, VSYNC), sensor clock (SCLK), and I²C configuration bus (SSDA/SSCL). No support is provided for MIPI CSI-2, LVDS, or other modern serial sensor interfaces.
Does STV0674T100 support USB 2.0 or only USB 1.1?
The STV0674T100 implements a full-speed USB 1.1 device interface compliant with revision 1.1 of the USB specification. It does not support USB 2.0 High-Speed (480 Mbps) operation. Maximum sustained video bandwidth is limited to ~12 Mbps, sufficient for 30 fps VGA Motion-JPEG streaming but not raw video or HD resolutions.
Can firmware be updated in-system, and what are the supported methods?
Yes - firmware updates are supported via three boot sources in strict priority order: (1) I²C-connected EEPROM, (2) NAND Flash memory, or (3) USB host download. The ROM bootloader automatically detects and loads valid firmware from the highest-priority available source, enabling field upgrades and OEM customization without hardware rework.
What are the thermal and packaging requirements for reliable operation?
The STV0674T100 in 100TQFP requires a PCB layout with an exposed thermal pad soldered to a solid copper pour connected to internal ground planes. Recommended junction temperature range is 0–70°C; ambient operation must maintain θJA ≤ 45°C/W with adequate airflow or heatsinking. No thermal sensor or dynamic throttling is integrated - thermal design responsibility lies with the system engineer.
STV0674T100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Video Processor, Microcontroller
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
- Grade:
- -
- Qualification:
- -
STV0674T100 FAQ
1.How can I place an order for STV0674T100 through Aetrix?
Please submit a Request for Quotation (RFQ) for STV0674T100 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 STV0674T100 reliable?
The price and inventory of STV0674T100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STV0674T100 is usually 5 days.
3.What payment methods are accepted for STV0674T100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STV0674T100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STV0674T100?
STV0674T100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STV0674T100 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 STV0674T100?
For technical support, including STV0674T100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STV0674T100 requirements.
6.How does Aetrix verify that STV0674T100 is sourced from the original manufacturer or authorized distributors?
All STV0674T100 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 STV0674T100 meets industry standards.
7.What is the process for return or replacement of STV0674T100?
All STV0674T100 units undergo pre-shipment inspection (PSI). If there is an issue with STV0674T100, 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 STV0674T100 part is unused and in its original packaging.
Return procedure for STV0674T100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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