DS2148T+ Maxim Integrated Products, DS2148T+ Datasheet - Page 10

• Manufacturer Part Number: DS2148T+
• Description: IC LIU E1/T1/J1 5V 44-TQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS2148T+

• Number Of Drivers/receivers: 1/1
• Protocol: T1/E1/J1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2 PIN DESCRIPTION
The DS2148 can be controlled in a parallel port mode, a serial port mode, or a hardware mode
Table
hardware mode is described below.
Table 2-1. Bus Interface Selection
Table 2-2. Pin Assignment in Parallel Port Mode
BIS1
DS2148T
0
0
0
0
1
1
PIN #
2-2, and
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
BIS0
0
0
1
1
0
1
Table
DS2148G
2-3). The parallel and serial port modes are described in Section
PBTS
PIN#
C3
C2
B1
D2
C1
D3
D1
G1
G2
G3
G4
G5
G6
D6
D5
D7
E1
F2
F1
E3
F3
F4
E4
F5
F6
E5
E6
F7
0
1
0
1
-
-
BUS INTERFACE TYPE
Nonmuxed Motorola
Muxed Motorola
Nonmuxed Intel
Muxed Intel
Serial Port
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Hardware
O
O
I
I
I
I
I
I
I
I
I
I
I
-
-
I
I
I
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PORT MODE
PARALLEL
RCL/LOTC
WR(R/W)
ALE(AS)
D7/AD7
D6/AD6
D5/AD5
D4/AD4
D3/AD3
D2/AD2
D1/AD1
D0/AD0
RD(DS)
RRING
PBEO
TEST
VSM
RTIP
V
INT
NA
NA
V
CS
A4
A3
A2
A1
A0
DD
SS
3.2
and 3.3, and the
(Table
2-1,