DS21552L+ Maxim Integrated Products, DS21552L+ Datasheet - Page 61

• Manufacturer Part Number: DS21552L+
• Description: IC TXRX T1 1-CHIP 5V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21552L+

• Function: Single-Chip Transceiver
• Interface: E1, HDLC, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: DSX-1 and CSU Line Build-Out Generator, HDLC Controller, In-Band Loop Code Generator and Detector
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 75 mA (Typ)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 100
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TC1 TO TC24: TRANSMIT CHANNEL REGISTERS (Address=50 to 57 and 40
to 4F Hex)
(for brevity, only channel one is shown; see Table 5-1 for other register address)
TCC1/TCC2/TCC3: TRANSMIT CHANNEL CONTROL REGISTER (Address=16
to 18 Hex)
11.2 RECEIVE SIDE CODE GENERATION
In the receive direction there are also two methods by which channel data to the backplane can be
overwritten with data generated by the framer. The first method which is covered in Section 11.2.1 was a
feature contained in the original DS2151 while the second method which is covered in Section 11.2.2 is a
new feature of the DS2152/352/552.
(MSB)
(MSB)
CH16
CH24
SYMBOL
SYMBOL
CH8
C7
CH24
CH1
C7
C0
CH15
CH23
CH7
C6
POSITION
POSITION
TCC3.7
TCC1.0
TC1.7
TC1.0
CH14
CH22
CH6
C5
NAME AND DESCRIPTION
NAME AND DESCRIPTION
Transmit Channel 24 Code Insertion Control Bit
0=do not insert data from the TC24 register into the transmit data stream
1 = insert data from the TC24 register into the transmit data stream
Transmit Channel 1 Code Insertion Control Bit
0=do not insert data from the TC1 register into the transmit data stream
1 = insert data from the TC1 register into the transmit data stream
MSB of the Code (this bit is transmitted first)
LSB of the Code (this bit is transmitted last)
CH13
CH21
CH5
C4
CH12
CH20
CH4
C3
61 of 137
CH11
CH19
CH3
C2
CH10
CH18
CH2
C1
(LSB)
(LSB)
CH17
CH1
CH9
C0
TCC1 (16)
TCC2 (17)
TCC3 (18)
TC1 (50)