Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Chapter 2
A0/nMUX
Pin Configurations
nRESET IN
nTXEN
nINTR
VDD
nRD/nDS
nWR/DIR
1
2
3
4
5
6
7
8
9
10
11
12
A1
A2/ALE
AD0
AD1
AD2
D3
D4
D5
D6
D7
VSS
23
22
21
20
19
18
17
16
15
14
13
25
nWR/DIR
26
27
28
1
2
3
4
5
24
23
22
VSS
nCS
24
21
RXIN
20
nPULSE2
19
18
17
16
nPULSE 1
XTAL2
XTAL1
VDD
VSS
N/C
D7
nCS
nINTR
nRESET IN
nTXEN
RXIN
nPULSE2
nRD/nDS
VDD
A0/nMUX
A1
A2/ALE
COM20019I 3V
28 PIN PLCC
15
14
13
12
nPULSE1
AD0
XTAL2
XTAL1
6
7
8
9
10
11
D3
AD1
AD2
Packages:
28-Pin PLCC
28-Pin PLCC
Package:
24-Pin DIP or
Ordering Information:
COM20019 I
P
PACKAGE TYPE: P = Plastic, LJP = PLCC
TEMP RANGE:
(Blank) = Commercial: 0°C to +70°C
I = Industrial: -40°C to +85°C
DEVICE TYPE: 20019 = Universal Local Area Network Controller
(with 2K x 8 RAM)
SMSC COM20019I 3.3V Rev.C
Page 7
VSS
D4
D5
D6
Rev. 10-31-06
DATASHEET