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M66332FP, M66335FP, M66339FP

Table of contents:
Info of M66332FP
Info of M66335FP
Info of M66339FP

M66332FP, M66335FP, M66339FP Selling Leads, Datasheet

MFG:TQFP Package Cooled:97+ D/C:MIT

M66332FP, M66335FP, M66339FP Datasheet download

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Part Number: M66332FP

MFG: TQFP

Package Cooled: 97+

D/C: MIT

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M66332FP General Description

The M66332 is a facsimile image processing controller that converts analog signals that are photoelectrically converted by an image sensor into bi-level signals.

It has image processing functions such as peak detection,uniformity correction, g correction, MTF compensation, detector of background and object levels, dither control, separation of image data area, scale down, and area specification.

This controller has a built-in 5-bit flash type A-D converter and interface circuits to image sensor, analog signal processing circuit, and CODEC (Coder & Decoder) to simplify control of the readout mechanism.

M66332FP Features

`High Speed Scan (MAX. 2 ms/line, TYP. 5 ms/line)
`A3 (8 pixels/mm) Line Sensor Attachment
`Image sensor (CCD,CIS) control signal generation
   CCD: SH, CK1, CK2, RS
   Contact sensor (CIS): SH, CK1 (or CK2)0Analog signal processing circuit control signal generation
   CLAMP, S/H, AGC, DSCH
`Built-in 5-bit Flash Type A-D Converter
`Bi-level data external input/output interface Serial output(M66330)
   8-bit MPU bus output with external DMA control signal
`Image data processing
   r correction
Uniformity correction (block correction in units of 8 pixels)
MTF compensation (1 dimension)
   Detector of background and object level (programmable)
   Dithering control
  1. Dither method (16 levels using 4 * 4 matrix)
      Separation of image data area (1 dimension)
      Scale down A3 B4, A3 A4, B4 A4
`5V Single Power Supply

M66332FP Typical Application

Facsimiles

M66332FP Connection Diagram

M66335FP General Description

The M66335 is a facsimile image processing controller to turn into binary signals analog signals which have been output through photoelectric conversion by the image sensor.

The image processing functions includes peak value detection,uniformity correction, resolution change, MTF compensation, y correction,detection of background/character levels, error diffusion,separation of image zones, and designation of regions.

This controller contains not only the analog processing circuit, the A/D converter of a 7-bit flash type and image processing memory, but also the image sensor and the interface circuit to the CODEC (Coder and Decoder). Therefore, this LSI alone is capable of image processing.

M66335FP Maximum Ratings

Symbol	Parameter	Conditions	Ratings	Unit
V_CC	Supply voltage		0.3 ~ +6.5	V
V_I	Input voltage		0.3 ~ V_CC+0.3	V
V_O	Output voltage		0 ~ V_CC	V
AV_CC	Analog supply voltage		V_CC0.3 ~ V_CC +0.3	V
DVCC	Supply voltage		V_CC0.3 ~ V_CC +0.3	V
V_WL	Reference voltage (white)		0.3 ~ AV_CC +0.3	V
V_BL	Reference voltage (black)		0.3 ~ AV_CC +0.3	V
V_AIN	Analog input voltage		0.3 ~ AV_CC +0.3	V
Ts_tg	Storage temperature		55 ~ +150

M66335FP Features

• High speed scan (max. 2 ms/line, typ. 5 ms/line)
• Compatibility with up to the B4 (8 pixels/mm, 16 pixels/mm) image sensor
• Generation of control signals for the image sensor (CCD, CIS)
   For CCD: SH, CK1, CK2, RS
   For the contact sensor (CIS): SH, CK1, CK2
• Built-in analog processing circuit (equivalent to the M64291)
   Sample and hold circuit
   Gain control circuit
   Black level clamping circuit
   Reference internal power supply for the A/D converter
• Built-in A/D converter of a 7-bit flash type
• Built-in image processing memories
   Uniformity correction memory, Line memory, Error memory,y correction memory
• External output interface for converted binary data
   Serial output (® M66330)
   DMA output
• External output interface for multivalued data
   DMA transfer of data compensated for uniformity
• Various image processing functions
   Uniformity correction
   Resolution change from 50% to 200% (by the 1% step)
   MTF compensation (2-dimensional processing, capable of correction
   for each character/photo)
y correction (capable of correction for each character/photo)
   Detection of background/character levels
   Change to pseudo-halftone
   - Error diffusion (64 tone steps through 6-bit processing)
   - Organized dither (64 tone steps through the 8  × 8 matrix)
   Image zone separation (2-dimensional processing)
• 5V single power supply

M66335FP Typical Application

Facsimile, word processor and image scanner

M66335FP Connection Diagram

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