On 4 Nov 1998 Eric Smith wrote:
   Does anyone
have a data sheet for the Sony V7021 IC? This is a video decoder 
That's not a Sony part number.  Sony used
    CX<digits><suffix>
on older stuff, and
    CX<letter><digits><suffix>
on newer stuff, where letter is M for memory, P for processor, A for analog,
D for other digital, etc.
What other numbers are on the part?  Does it actually bear a Sony logo? 
 
It absolutely is a Sony part. 28 pin package, pins are on a finer pitch than
"normal" DIL ICs, maybe 0.4 wide. On the chip is printed:
        SONY       [the Sony logo]
        V7021
      (C) Asuki    [Asuki is in Japanese katakana, not romaji]
       142B95K
On a related subject, can anyone recommend a cheap IC which I can use for
buffering RGB signals, to driving 75ohm-terminated outputs?
-- Mark