SAA7385GP Philips Semiconductors, SAA7385GP Datasheet - Page 4

• Manufacturer Part Number: SAA7385GP
• Description: Error correction and host interface IC for CD-ROM SEQUOIA
• Manufacturer: Philips Semiconductors

Philips Semiconductors
The SAA7385 uses a 33.8688 MHz clock and is capable
of accepting data at eight times (n = 8 or 1.4 Mbytes/s) the
normal CD-ROM data rate.
Third level error correction hardware is included to
improve the correction efficiency of the system. The buffer
manager hardware utilizes a ten-level arbitration unit and
can stop the clock to the microcontroller to emulate a wait
condition when necessary.
The SAA7385 comprises five major functional blocks:
3
4
1996 Jun 19
V
T
T
SAA7385GP
The 80C32 microcontroller is an industry standard core
The 53CF94 is an industry standard core
The front-end block connects to the external CD-60
based decoder and fully processes the incoming data
stream to provide bytes of data that are stored in the
external buffer
The buffer manager block provides the address
generation and timing control for the external DRAM
buffer
The ECC block performs the error correction functions in
hardware on the data in the DRAM buffer.
amb
stg
DD
Error correction and host interface IC for
CD-ROM (SEQUOIA)
NUMBER
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
TYPE
SQFP128 plastic quad flat package; 128 leads (lead length 1.6 mm);
digital supply voltage
operating ambient temperature
storage temperature
NAME
body 14
PARAMETER
20
2.8 mm
DESCRIPTION
4
Supply of this Compact Disc IC does not convey an
implied license under any patent right to use this IC in
any Compact Disc application.
PACKAGE
4.5
0
55
MIN.
5.0
TYP.
Preliminary specification
5.5
70
+150
MAX.
SAA7385
SOT387-2
VERSION
V
C
C
UNIT