T7234 데이터 시트보기 (PDF) - Agere -> LSI Corporation
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T7234 Datasheet PDF : 116 Pages
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Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Description (continued)
4-WIRE
S/T-INTERFACE
S/T
TRANS-
CEIVER
MULTI-
FRAMING
CONTROLLER
µP INTERFACE
µP INTERFACE &
REGISTERS
CONTROL FLOW STATE
MACHINE
DATA FLOW MATRIX
TDM BUS INTERFACE
eoc
STATE
MACHINE
U
TRANS-
CEIVER
2-WIRE
2B1Q
U-INTERFACE
ANSI
MAINTENANCE
DECODER
CRYSTAL
OSC.
15.360
MHz
TDM BUS INTERFACE
Figure 1. Block Diagram
5-2292 (C)
Pin Information
FTE/TDMDI
PS2E/TDMDO
PS1E/TDMCLK
GNDD
ACTMODE/INT
SYN8K_CTL/SDI
VDDD
SDO
AUTOACT/SCK
GNDD
CKOUT
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
35
12
T7256
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
VDDA
SDINP
SDINN
HP
LON
GNDA
VDDA
LOP
HN
VRN
VRP
Note: Pin labels shown in bold (pins 11, 12, and 15) represent chip configuration controls that are sampled on the rising edge of RESET (see
Table 1, Pin Descriptions).
5-2296 (C)
Figure 2. Pin Diagram
Lucent Technologies Inc.
5
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