RC224ATL/224ATLV
3.0 Pin Descriptions
EmbeddedModem Family
Table 3-3. RC224ATL/224ATLV 100-Pin PQFP Pin Assignments—Serial (1 of 4)
Pin Number
Signal Label
I/O Type(1)
1
2
3
DTR
DI
DI
IDLEN1
RAGCO
MI(2) to RAGCI
MI to RADCO
MI to TSTBI
4
5
6
RADCI
TSTBO
NC(3)
NC
—
7
—
—
8
NC
9
RSTBO
RRSTO
TRSTO
MODEO
TDACO
SLEEP
NC
MI to RSTBI
MI to RRSTI
MI to TRSTI
MI to MODEI
MI to TDACI
DO
10
11
12
13
14
15
16
—
DGND(4)
DGND
17
18
19
20
21
22
23
24
25
26
27
MODEI
VAA
MI to MODEO
—
—
SPKR
NC
O(DF)
AGND
TXA2
TXA1
NC
AGND
O(DD)
O(DD)
—
RXA
I(DA)
NC
—
—
RFILO
NOTE(S):
(1)
I/O Types are described in Figure 7-5, Digital Interface Characteristics and
Figure 7-6, Analog Interface Characteristics.
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 kΩ.
Connect ATL to + 5 VCC, ATLV to + 3 VCC.
(2)
(3)
(4)
(5)
(6)
D224ATLVDSC
Conexant
3-7
CONEXANT [ CONEXANT SYSTEMS, INC ]
