W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 262

• Manufacturer Part Number: W83627EHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.3.4 Floppy Disk Drive Timing
FDC: Data rate = 1MB, 500KB, 300KB, 250KB/sec.
Notes:
1. Typical values for T = 25°C and normal supply voltage.
2. Programmable from 0.5 mS through 32 mS as described in step rate table.
DIR# setup time to STEP#
DIR# hold time from STEP#
STEP# pulse width
STEP# cycle width
INDEX# pulse width
RDATA# pulse width
WD# pulse width
(Please refer to the description of the SPECIFY command set.)
PARAMETER
DATA RATE
SRT
1MB/S
Step Rate Table
SYM.
T
T
T
T
T
T
T
DST
STD
STP
IDX
WD
W83627EHF/EF, W83627EHG/EG
SC
RD
500KB/S
-251-
/13.8/27.
/417/500
/225/475
6.8/11.5
NOTE 2
125/250
100/185
/2.0/4.0
1.0/1.6
/48/96
24/40
MIN.
40
8
300KB/S
Publication Release Date: April 7, 2009
(NOTE 1)
/250/500
NOTE 2
125/210
7/11.7
/14/28
TYP.
250KB/S
/14.2/28.
/275/525
7.2/11.9
NOTE 2
150/235
MAX.
2
Version 1.94
UNIT
mS
nS
nS
nS
µS
µS
µS