LPC47N227TQFP Standard Microsystems (SMSC), LPC47N227TQFP Datasheet - Page 180

• Manufacturer Part Number: LPC47N227TQFP
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47N227TQFP

• Lead Free Status / RoHS Status: Not Compliant

nWDATA
nRDATA
nINDEX
nDS0-1
nSTEP
NAME
nDIR
*X specifies one MCLK period and Y specifies one WCLK period.
MCLK = 16 x Data Rate (at 500 kb/s MCLK = 8 MHz)
WCLK = 2 x Data Rate (at 500 kb/s WCLK = 1 MHz)
Note: The nDS0-1 setup and hold times must be met by software.
t1
t2
t3
t4
t5
t6
t7
t8
t9
nDIR Set Up to STEP Low
nSTEP Active Time Low
nDIR Hold Time after nSTEP
nSTEP Cycle Time
nDS0-1 Hold Time from nSTEP Low (Note)
nINDEX Pulse Width
nRDATA Active Time Low
nWDATA Write Data Width Low
nDS0-1, Setup Time nDIR Low (Note)
FIGURE 17 – FLOPPY DISK DRIVE TIMING (AT MODE ONLY)
t9
t1
DESCRIPTION
t6
t7
t8
t2
180
t4
MIN
0
t3
t5
TYP
132
24
96
20
40
.5
4
2
MAX
UNITS
X*
X*
X*
X*
X*
X*
ns
Y*
ns