r6781-12 Conexant Systems, Inc., r6781-12 Datasheet - Page 36

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

3-10
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
100
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Conexant
NC
AAE
DTRL
NC
RXD
RESET
VCC
VCC
NC
NVRSK
NC
NC
TXD
NC
NC
DGND
NC
NC
NC
Figure 7-5, Digital Interface Characteristics
Characteristics.
Signal Label
DO
DO
DO
IC
(6)
(6)
DO
DI
DGND
EmbeddedModem Family
—
Serial (4 of 4)
I/O Type
and
—
—
—
—
—
—
—
—
—
—
D224ATLVDSC
(1)