DS21552L+ Maxim Integrated Products, DS21552L+ Datasheet - Page 75
DS21552L+
Manufacturer Part Number
DS21552L+
Description
IC TXRX T1 1-CHIP 5V 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21352L.pdf
(137 pages)
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
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RHFR: RECEIVE HDLC FIFO (Address=05 Hex)
THIR: TRANSMIT HDLC INFORMATION (Address=06 Hex)
NOTE:
The TUDR bit is latched and will be cleared when read.
TBOC: TRANSMIT BOC REGISTER (Address=07 Hex)
SYMBOL
SYMBOL
SYMBOL
RHFR7
TEMPTY
(MSB)
(MSB)
(MSB)
SBOC
RHFR7
RHFR6
RHFR5
RHFR4
RHFR3
RHFR2
RHFR1
RHFR0
TFULL
TUDR
HBEN
SBOC
–
–
–
–
–
–
RHFR6
HBEN
POSITION
POSITION
POSITION
TBOC.7
TBOC.6
RHFR.7
RHFR.6
RHFR.5
RHFR.4
RHFR.3
RHFR.2
RHFR.1
RHFR.0
–
THIR.7
THIR.6
THIR.5
THIR.4
THIR.3
THIR.2
THIR.1
THIR.0
RHFR5
BOC5
NAME AND DESCRIPTION
HDLC Data Bit 7. MSB of a HDLC packet data byte.
HDLC Data Bit 6.
HDLC Data Bit 5.
HDLC Data Bit 4.
HDLC Data Bit 3.
HDLC Data Bit 2.
HDLC Data Bit 1.
HDLC Data Bit 0. LSB of a HDLC packet data byte.
NAME AND DESCRIPTION
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Transmit FIFO Empty. A real–time bit that is set high when the FIFO is empty.
Transmit FIFO Full. A real–time bit that is set high when the FIFO is full.
Transmit FIFO Under-run. Set when the transmit FIFO empties out without the
TEOM control bit being set. An abort is automatically sent.
NAME AND DESCRIPTION
Send BOC. Rising edge triggered. Must be transitioned from a 0 to a 1 transmit the
BOC code placed in the BOC0 to BOC5 bits instead of data from the HDLC controller.
Transmit HDLC & BOC Controller Enable.
–
RHFR4
BOC4
–
75 of 137
RHFR3
BOC3
–
TEMPTY
RHFR2
BOC2
RHFR1
TFULL
BOC1
RHFR0
TUDR
(LSB)
(LSB)
(LSB)
BOC0
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