T7256 Agere Systems, T7256 Datasheet - Page 8

• Manufacturer Part Number: T7256
• Description: (T7234 - T7256) Compliance
• Manufacturer: Agere Systems

T7234 Single-Chip NT1 (SCNT1) Euro-LITE Transceiver
Description
Pin Information
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
4
S/T-INTERFACE
Table 1, Pin Descriptions).
4-WIRE
(continued)
TRANS-
CEIVER
S/T-
SYN8K_CTL
ACTMODE
AUTOACT
GND
GND
PS2E
PS1E
V
FTE
DDD
NC
NC
D
D
CONTROL FLOW STATE
Figure 1. Block Diagram
7
8
9
10
11
12
13
14
15
16
17
Figure 2. Pin Diagram
18
6
MACHINE
19 20
5
4
21
3
22
2
T7234
23
1
44
24
43
25
42
26
41
27
U TRANSCEIVER
MAINTENANCE
40
28
DECODER
MACHINE
STATE
39
38
37
36
35
34
33
32
31
30
29
ANSI
eoc
V
SDINP
SDINN
HP
LON
GND
V
LOP
HN
VRN
VRP
DDA
DDA
A
CRYSTAL
Lucent Technologies Inc.
OSC.
February 1998
Data Sheet
U-INTERFACE
15.360
MHz
2-WIRE
2B1Q
5-2292.c (C)
5-2296.c (C)