DS2148T+ Maxim Integrated Products, DS2148T+ Datasheet - Page 21

• 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

Figure 2-1. Parallel Port Mode Pinout (BIS1 = 0, BIS0 = 1 or 0) (TQFP
Package)
Figure 2-2. Serial Port Mode Pinout (BIS1 = 1, BIS0 = 0) (TQFP Package)
1 CS*
2 NA
3 NA
4 NA
5 SCLK
6 SDI
7 SDO
8 ICES
9 OCES
10 NA
11 NA
1 CS*
2 RD (DS)
3 WR* (R/W*)
4 ALE (AS)
5 NA
6 NA
7 A4
8 A3
9 A2
10 A1
11 A0
(Note: tie all NA pins low)
(Note: tie all NA pins low)
Serial Port
Operation
Parallel Port
DS2148
Operation
DS2148
21 of 73
RCL/LOTC 25
RCL/LOTC 25
BPCLK 31
RRING 28
HRST* 29
MCLK 30
PBEO 24
TEST 26
RTIP 27
BIS1 33
BIS0 32
INT* 23
BPCLK 31
RRING 28
HRST* 29
MCLK 30
PBEO 24
TEST 26
RTIP 27
BIS1 33
BIS0 32
INT* 23
tie high
tie low
tie low
tie low (MUX) or high (non-MUX)