MT9V022I77ATC Aptina LLC, MT9V022I77ATC Datasheet - Page 19

• Manufacturer Part Number: MT9V022I77ATC
• Description: IC SENSOR IMAGE VGA COLOR 52IBGA
• Manufacturer: Aptina LLC
• Type: CMOS Imagingr
• Series: DigitalClarity®r

Specifications of MT9V022I77ATC

• Pixel Size: 6µm x 6µm
• Active Pixel Array: 752H x 480V
• Frames Per Second: 60
• Voltage - Supply: 3.3V
• Package / Case: 52-IBGA
• Sensor Image Color Type: Color
• Sensor Image Size Range: 250,920 to 480,000Pixels
• Sensor Image Size: 752x480Pixels
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Package Type: IBGA
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 52
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1267; MT9V022I77ATC

Register Lock
Lock All Registers
Lock Read Mode Register Only (R0x0D)
PDF: 3295348826/Source:7478516499
MT9V022_DS - Rev.H 6/10 EN
Included in the MT9V022 is a register lock (R0xFE) feature that can be used as a solution
to reduce the probability of an inadvertent noise-triggered two-wire serial interface
write to the sensor. All registers (or read mode register—register 13 only) can be locked;
it is important to prevent an inadvertent two-wire serial interface write to register 13 in
automotive applications since this register controls the image orientation and any
unintended flip to an image can cause serious results.
At power-up, the register lock defaults to a value of 0xBEEF, which implies that all
registers are unlocked and any two-wire serial interface writes to the register gets
committed.
If a unique pattern (0xDEAD) to R0xFE is programmed, any subsequent two-wire serial
interface writes to registers (except R0xFE) are NOT committed. Alternatively, if the user
writes a 0xBEEF to the register lock register, all registers are unlocked and any
subsequent two-wire serial interface writes to the register are committed.
If a unique pattern (0xDEAF) to R0xFE is programmed, any subsequent two-wire serial
interface writes to register 13 is NOT committed. Alternatively, if the user writes a
0xBEEF to register lock register, register 13 is unlocked and any subsequent two-wire
serial interface writes to this register is committed.
Two-Wire Serial Interface Sample Read and Write Sequences
19
MT9V022: 1/3-Inch Wide-VGA Digital Image Sensor
Aptina reserves the right to change products or specifications without notice.
©2005 Aptina Imaging Corporation. All rights reserved.