FDC37C669-MS Standard Microsystems (SMSC), FDC37C669-MS Datasheet - Page 28

• Manufacturer Part Number: FDC37C669-MS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37C669-MS

• Pin Count: 100
• Lead Free Status / RoHS Status: Compliant

Drive Rate Table (Recommended)
Note 1: This is for DENSEL in normal mode.
Note 2: This is for DRATE0, DRATE1 when Drive Opt are 00.
DRT1
DRIVE RATE
0
0
0
0
0
0
0
0
1
1
1
1
01 = 3-Mode Drive
10 = 2 Meg Tape
DRT0
0
0
0
0
1
1
1
1
0
0
0
0
*The 2 Mbps data rate is only available if V
SEL1
DATA RATE
Table 12 - Default Precompensation Delays
1
0
0
1
1
0
0
1
1
0
0
1
DATA RATE
500 Kbps
300 Kbps
250 Kbps
2 Mbps
1 Mbps
00 = 360K, 1.2M, 720K, 1.44M and 2.88M Vertical Format
SEL0
1
0
1
0
1
0
1
0
1
0
1
0
Table 11 - Data Rates
1Meg
1Meg
1Meg
2Meg
MFM
500
300
250
500
500
250
500
250
DATA RATE
PRECOMPENSATION
28
250
150
125
250
250
125
250
125
FM
DELAYS
41.67 ns
---
---
---
---
125 ns
125 ns
125 ns
125 ns
IDENT=1
CC
1
1
1
0
= 5V.
1
0
0
1
0
0
1
0
DENSEL (1)
IDENT=0
0
0
1
1
0
0
1
1
0
0
1
1
DRATE (2)
1
1
0
0
1
1
0
0
1
1
0
0
1
2
1
0
1
0
1
0
1
0
1
0
1
0