W81281 View Datasheet(PDF) - Winbond
Part Name
Description
Manufacturer
W81281 Datasheet PDF : 37 Pages
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5.2 28-PIN SOP
PIN NO.
NAME
1
VSS
2
VSS
3
D+
4
D-
5
VDD3
6
AD04
7
AD05
8
AD06
9
AD07
10 XALE
11 XWR
12 XRD
13 RESET
14 X2
15 X1
16 VDD
17 XINT
18 XMODE
19 NC
20 NC
21 WK3
22 WK2
23 WK1
24 WK0
25 AD03
26 AD02
27 AD01
28 AD00
W81281
Preliminary
TYPE
POWER
POWER
I/O
I/O
POWER
I/O
I/O
I/O
I/O
I/O
I/O
I/O
INPUT
OUTPUT
INPUT
POWER
I/O
I/O
I/O
I/O
INPUT
INPUT
INPUT
INPUT
I/O
I/O
I/O
I/O
Ground
DESCRIPTION
Ground
USB signal (+)
USB signal (-)
DC power 3.3V output
µC Interface AD04 (Address/Data 04)
µC Interface AD05 (Address/Data 05)
µC Interface AD06 (Address/Data 06)
µC Interface AD07 (Address/Data 07)
µC Interface ALE (Address Latch Enable)
µC Interface WR (Data Write)
µC Interface RD (Data Read)
Chip reset pin
Clock output
Clock input
VDD power
µC Interface INT (Interrupt)
Controller mode setting, it should be kept high
Not Used
Not Used
Wakeup pin, Active low and keep more than 100ns
Wakeup pin, Active low and keep more than 100ns
Wakeup pin, Active low and keep more than 100ns
Wakeup pin, Active low and keep more than 100ns
µC Interface AD03 (Address/Data 03)
µC Interface AD02 (Address/Data 02)
µC Interface AD01 (Address/Data 01)
µC Interface AD00 (Address/Data 00)
8
Publication Release Date: July 1999
Revision 0.60
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