DS21554LB+ Maxim Integrated Products, DS21554LB+ Datasheet - Page 67

• Manufacturer Part Number: DS21554LB+
• Description: IC TXRX E1 5V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21554LB+

• 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: Remote and AIS Alarm Detector / Generator
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 1.544 Mbps
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 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

RAF: RECEIVE ALIGN FRAME REGISTER (Address = 2F Hex)
RNAF: RECEIVE NON-ALIGN FRAME REGISTER (Address = 1F Hex)
TAF: TRANSMIT ALIGN FRAME REGISTER (Address = 20 Hex)
Note: The TAF register must be programmed with the 7-bit FAS word. The DS21354/DS21554 do
not automatically set these bits.
SYMBOL
SYMBOL
SYMBOL
(MSB)
(MSB)
(MSB)
Si
Si
Si
Sa4
Sa5
Sa6
Sa7
Sa8
Si
Si
Si
A
0
0
1
1
0
1
1
1
0
0
1
1
0
1
1
POSITION
POSITION
POSITION
RNAF.7
RNAF.6
RNAF.5
RNAF.4
RNAF.3
RNAF.2
RNAF.1
RNAF.0
RAF.7
RAF.6
RAF.5
RAF.4
RAF.3
RAF.2
RAF.1
RAF.0
TAF.7
TAF.6
TAF.5
TAF.4
TAF.3
TAF.2
TAF.1
TAF.0
0
0
1
International Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
International Bit.
Frame Non-Alignment Signal Bit.
Remote Alarm.
Additional Bit 4.
Additional Bit 5.
Additional Bit 6.
Additional Bit 7.
Additional Bit 8.
International Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
Frame Alignment Signal Bit.
A
0
0
Sa4
1
1
67 of 124
NAME AND DESCRIPTION
NAME AND DESCRIPTION
NAME AND DESCRIPTION
Sa5
1
1
Sa6
0
0
Sa7
1
1
(LSB)
(LSB)
(LSB)
Sa8
1
1