MC68194
Carrier Band Modem (CBM)
The bipolar LSI MC68194 Carrier Band Modem (CBM) when
combined with the MC68824 Token Bus Controller provides an IEEE
802.4 single channel, phase−coherent carrier band Local Area
Network (LAN) connection. The CBM performs the Physical Layer
function including symbol encoding/decoding, signal transmission
and reception, and physical management. Features include:
• Implements IEEE 802.4 single channel, phase−coherent Frequency
Shift Keying (FSK) physical layer including receiver blanking.
• Provides physical layer management including local loopback mode,
transmitter enable, and reset.
• Supports data rates from 1 to 10 Mbps. IEEE 802.4 standard uses 5
or 10 Mbps.
• Interfaces via standard serial interface to MC68824 Token Bus
Controller.
• Crystal controlled transmit clock.
• Recovery of clocked data through phase−locked loop.
• RC controlled Jabber Inhibit Timer.
• Single +5.0 volt power supply.
• Available in 52−lead Cerquad package.
PIN ASSIGNMENTS AND DEVICE MARKING
http://onsemi.com
CERQUAD
FJ SUFFIX
CASE 778B
ORDERING INFORMATION
Device
Package
Shipping
MC68194FJ
CERQUAD 20 Units / Rail
MC68194FJR2 CERQUAD 450 Units / Reel
765432
52 51 50 49 48 47
8
1
46
9
45
10
44
11
43
12
42
13
MC68194FJ
41
14
AWLYYWW
40
15
39
16
A = Assembly Location
38
17
WL = Wafer Lot
37
YY = Year
18
WW = Work Week
36
19
35
20
34
21 22 23 24 25 26 27 28 29 30 31 32 33
© Semiconductor Components Industries, LLC, 2006
1
June, 2006 − Rev. 7
Publication Order Number:
MC68194/D