r6781-12 Conexant Systems, Inc., r6781-12 Datasheet - Page 34

• Manufacturer Part Number: r6781-12
• Description: Embedded Modem Family
• Manufacturer: Conexant Systems, Inc.

3-8
Table 3-3. RC224ATL/224ATLV 100-Pin PQFP Pin Assignments
NOTE(S):
(1)
(2)
(3)
(4)
(5)
(6)
I/O Types are described in
Figure 7-6, Analog Interface
MI = Modem Interconnection
NC = No external connection (may have internal connection, leave pin disconnected
(open)).
AGND is analog ground and DGND is digital ground.
Connect to VCC through 4.7 k .
Connect ATL to + 5 VCC, ATLV to + 3 VCC.
Pin Number
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Conexant
AGCIN
VC
AGND
NC
NC
NC
NC
NC
TLKRELAY
AGND
OHRELAY
NC
NC
SLEEPI
RAGCI
AGND
RSTBI
RRSTI
RADCO
TDACI
TRSTI
TSTBI
NC
NC
TEST
XTLI
2
Figure 7-5, Digital Interface Characteristics
Characteristics.
Signal Label
AGND
OD
AGND
OD
DI
MI to RAGCO
AGND
MI to RSTBO
MI to RRSTO
MI to RADCI
MI to TDACO
MI to TRSTO
MI to TSTBO
DO
(5)
IE
EmbeddedModem Family
—
Serial (2 of 4)
I/O Type
and
—
—
—
—
—
—
—
—
—
—
—
D224ATLVDSC
(1)