10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Board RAM
Datasheet
Chapter 2
Pin Configuration
A0/nMUX
nRD/nDS
nWR/DIR
37
36
35
34
33
32
nCS
nDACK
nINTR
DREQ
VDD
nRESET
VSS
nTXEN
RXIN
N/C
BUSTMG
nPULSE2
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
24
nPULSE1
nIOCS16
nREFEX
A2/ALE
VDD
VSS
48
AD0
AD1
D10
AD2
D11
VSS
D3
VDD
D4
D5
VSS
D6
1
2
3
4
5
6
7
8
9
10
11
12
47
46
45
44
43
42
41
40
39
38
COM20022I
COM20022
48 Pin TQFP
48
VSS
VDD
XTAL1
Ordering Information:
COM20022
Ordering Information:
COM20022I
PACKAGE TYPE: TQFP
PACKAGE TYPE: TQFP
TEMP RANGE: (Blank) = Commercial 0°C to
TEMP RANGE: (Blank) = Commercial: 0°C to +70°C
+ 70°
I =
1 = Industrial: -40°C to +85°C
Industrial: -40°C to +85°C
DEVICE TYPE: 20022I = Universal Local Area Network
DEVICE TYPE: 20022 = Universal Local Area Network Controller
Controller
(with
8 RAM)
(with 2K x
2K x 8 RAM)
Figure 2.1 - COM20022I Pin Configuration
SMSC COM20022I
Page 7
XTAL2
VSS
D12
D13
D14
D15
N/C
D7
TC
D9
D8
A1
Revision 02-27-06
DATASHEET
SMSC [ SMSC CORPORATION ]
