U4 Family Product Manual, Rev. D 1
Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the U4
ST38421A, ST36421A, ST34311A and the
ST32112A. These drives provide the following key features:
•
Low power consumption
•
Quiet operation
•
10-5 msec seek time, 5-400-RPM and 256-Kbyte buffer for excellent
desktop performance
•
High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per
second) using Ultra DMA mode 4
•
300 Gs nonoperating shock
•
Full-track multiple-sector transfer capability without local processor
intervention
•
State-of-the-art cache and on-the-fly error-correction algorithms
•
MR recording heads and EPRML technology, which provide the drives
with increased areal density
•
Support for S.M.A.R.T. drive monitoring and reporting
•
Support for Read Multiple and Write Multiple commands
•
Support for autodetection of master/slave drives that use cable select
(CSEL)
