STMicroelectronics VV6501C001

Overview

VV6501C001 from STMicroelectronics is a VGA-resolution (640 × 480) CMOS color image sensor with integrated 10-bit column ADC, on-chip 3.3 V and 1.8 V digital voltage regulators, I²C programmable exposure/gain control, and embedded frame/line synchronization codes. It delivers raw Bayer-pattern video data via 5-wire nibble output and supports USB webcam systems with STV0676 co-processor.

For engineers reviewing the VV6501C001 datasheet, VV6501C001 pinout, VV6501C001 application, or VV6501C001 equivalent, key selection considerations include its 5.6 µm pixel size, 30 fps maximum frame rate at 24 MHz clock, low-power suspend mode (<100 µA), integrated audio preamplifier, and CLCC-36 package compatibility with 1/4-inch optics.

Technical Context

The VV6501C001 implements a progressive-scan VGA pixel array (656 × 496 physical, 640 × 480 active) with microlens-enhanced 5.6 µm pixels and on-die 10-bit column ADC. Video output is formatted as two 5-bit nibbles per 10-bit pixel, synchronized via dedicated FST (frame start) and QCLK (data qualification clock) signals plus embedded escape sequences (3FC, 3FC, 00).

Its power architecture integrates dual LDO controllers-VBASE3V3/V DIG3V3 and VBASE1V8/V DIG1V8-for driving external PNP transistors to generate 3.3 V and 1.8 V supplies from a 5 V USB input. The SUSPEND pin enables hardware-triggered low-power state retention, while PORB provides active-low reset signaling for companion processors.

Key Specifications

Pinout & Package

Package: 36-pin Ceramic Leadless Chip Carrier (CLCC), surface-mount, 16.0 mm × 16.0 mm footprint, 1.7 mm height, with exposed thermal pad (GNDS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar VGA CMOS image sensor applications.

Compared with OV7670 and MT9V022, the VV6501C001 uniquely combines color Bayer output, integrated power regulation, audio capability, and hardware suspend-making it optimal for USB-powered consumer imaging where BOM reduction and system-level power management are critical.

Availability

VV6501C001 is available at Aetrix Electronics and suitable for USB webcam modules, digital still camera reference designs, and embedded vision systems requiring stable component supply and long-term manufacturability.

Supply support for VV6501C001 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, delivering microcontrollers, sensors, power ICs, and imaging solutions for automotive, industrial, and consumer markets.

The VV6501 belongs to ST's legacy VGA CMOS image sensor product line, designed specifically for cost-sensitive, USB-connected imaging applications where integration of power, timing, and audio simplifies system architecture.

FAQ

What clock frequency is required for full 30 fps VGA operation?

The VV6501C001 requires a 24 MHz input clock on CLKIN to achieve its maximum 30 fps frame rate in default VGA mode. At this clock, each line consumes 762 QCK periods (63.5 µs), and the full frame duration is 524 lines (≈16.7 ms). Lower clock frequencies proportionally reduce frame rate and may require register adjustments to maintain timing integrity.

How does the automatic dark calibration function work?

The VV6501C001 uses dedicated shielded "dark lines" (rows masked from light by metal) to measure baseline pixel offset. During initialization and periodically in operation, the sensor reads these lines, computes an average dark value, and applies it as a digital offset correction to all active pixel data-ensuring consistent black level across temperature and aging without host intervention.

Can the VV6501C001 operate without an external co-processor?

No-the VV6501C001 outputs raw Bayer data with embedded sync codes but performs no color interpolation, JPEG encoding, or USB protocol handling. It requires a companion processor (e.g., STV0676) to parse line/frame codes, apply gamma/white balance, and manage USB packetization. Its I²C interface allows configuration but not autonomous operation.

What is the purpose of the PDVREG1V8 pin?

PDVREG1V8 is an active-low enable signal for the internal 1.8 V digital regulator. When driven low, it powers down the VBASE1V8/V DIG1V8 regulator pair, reducing quiescent current. This allows selective shutdown of the 1.8 V rail-useful when the companion processor enters deep sleep and no longer requires core voltage, improving overall system power efficiency.