Specifications

PRODUCT SPECIFICATIONS
3 – 15
SECTION 3
Product Specifications
Configuration
Performance
MODEL 87000A8 86480A8 85250A6 84320A5 83500A4 83240A4 82560A3 81750A2
Formatted Capacity (LBA Mode) 7,000 MB 6,480 MB 5,250 MB 4,320 MB 3,500 MB 3,240 MB 2,560 MB 1,750 MB
Integrated Controller/Interface ATA-4/EIDE
Encoding Method RLL 8,9
Interleave 1:1
Servo System Embedded
Buffer Size/Type 256 KB/EDO DRAM
Data Zones per Surface 16
Data Surfaces/Heads 88654432
Aerial Density 1,200 Mb/in
2
Tracks per Surface (Cylinders) 7,825
Track Density 7,797 tpi
Flux Density 138-172 kfci
Recording Density 123-153 kbpi
Bytes per Sector/Block 512
Sectors per Track 156-249
Sectors per Drive 13,678,880 12,656,250 10,259,160 8,437,500 6,839,440 6,328,125 5,001,728 3,419,720
MODEL 87000A8 86480A8 85250A6 84320A5 83500A4 83240A4 82560A3 81750A2
Seek Times (Typical)
Track to Track 1.2 ms
Average < 10.0 ms
Maximum 18 ms
Average Latency 5.77 ms
Rotational Speed (±0.1%) 5,200 RPM
Controller Command Overhead < 0.5 ms
Data Transfer Rate
To/from Interface
(PIO 4/Multi-word DMA - Mode 2)
16.7 MB/sec
To/from Media Up to 14.0 MB/sec
Start Time (0 to Drive Ready) 7.3 sec typical