W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 101
W83977EF
Manufacturer Part Number
W83977EF
Description
Description = W83877TF Plus Kbc, GP I/O, Wake-Up, Power Fail Resume ;; Package = QFP 128
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977EF.pdf
(150 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W83977EF-AW
Manufacturer:
Winbond
Quantity:
10
Company:
Part Number:
W83977EF-AW
Manufacturer:
WINBOND
Quantity:
188
Part Number:
W83977EF-AW
Manufacturer:
WINBOND/华邦
Quantity:
20 000
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CRF5 (Default 0x00)
FDD1 Selection: Same as FDD0 of CRF4.
TABLE A
Note:Refer to CRF2 for SELDEN value in the cases when CRF0, bit0=1.
TABLE B
DMOD0
DRTS1
Drive Rate Table
0
0
1
0
0
1
1
Select
DRTS0
DMOD1
0
1
0
0
1
0
1
DRATE1
DRVDEN0(pin 2)
1
0
0
1
1
0
0
1
1
0
0
1
SELDEN
DRATE1
SELDEN
DRATE0
Data Rate
DRATE0
1
0
1
0
1
0
1
0
1
0
1
0
-95 -
DRVDEN1(pin 3)
Selected Data Rate
1Meg
1Meg
1Meg
2Meg
500K
300K
250K
500K
500K
250K
500K
250K
MFM
DRATE0
DRATE0
DRATE0
DRATE1
250K
150K
125K
250K
250K
125K
250K
125K
FM
---
---
---
---
Publication Release Date: April 2003
4/2/1 MB 3.5”“
2/1 MB 5.25”
2/1.6/1 MB 3.5” (3-MODE)
CRF0 bit 0=0
SELDEN
DRIVE TYPE
W83977EF
1
1
0
0
1
1
0
0
1
1
0
0
Revision 1.1
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