VSC6424 Datasheet, PDF (1/18 Pages) Vitesse Semiconductor Corporation – 500 Mb/s Video Shift Register IC

VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Datasheet
VSC6424
500 Mb/s Video
Shift Register IC
Features
• Multiplex or Demultiplex Operation
• Selectable Shift Register Length
• 500Mb/s Operation using internal timing
• 250Mb/s Operation using external timing
• Functional Replacement for Bt424
• External ECL Reference Voltage (-1.32 V)
• ECL and TTL I/Os: ECL for high-speed interface,
TTL for low-speed interface
• Power Supplies: +3.3V and -2V @ 2.7 Watts (Max.)
• Commercial (0^o to +70^oC) Temperature Range
• Package: 14mm x 20mm 128 PQFP
General Description
The VSC6424 is a 500Mb/s video shift register IC that is based on a 40-bit user-configured shift register.
The shift register may be used either as a multiplexer (parallel in, serial out) or as a demultiplexer (serial in, par-
allel out). The VSC6424 can be configured into 8 5-bit, 8 4-bit, 5 8-bit, 4 10-bit, 2 16-bit, 2 20-bit, 1 32-bit, or 1
40-bit shift register.
VSC6424 Functional Block Diagram
OEN
HBLANK
VBLANK
A<0:4>
5
AEN/RETIME
SIN
(ECL)
40
MUX
8
SB<0:39>
40
Input
40
Low
Latch
40-bit
Speed
Interface
(TTL)
Shift
Register
(TTL)
S<0:2> ³
MODE
INT/EXTN
OPS
LLDN
SEN/DIVC
SLDN/SYNC
10
DE-
10
MUX
CLK
(ECL)
SP<0:2> ³
Clock
Generator
Phase
Rotation
DOUT<0:7>
CLKOUT
High
Speed
Interface
(ECL)
DIN<0:9>
CLKE(ECL)
CLKT(TTL)
G52236-0, Rev 3.0
7/13/99
© VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: [phone]
Page 1