DS21Q43AT Maxim Integrated Products, DS21Q43AT Datasheet - Page 3
DS21Q43AT
Manufacturer Part Number
DS21Q43AT
Description
IC FRAMER E1 QUAD 5V IND 128TQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21Q43AT.pdf
(60 pages)
Specifications of DS21Q43AT
Controller Type
E1 Framer
Interface
Parallel/Serial
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
32mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
128-TQFP, 128-VQFP
Dc
0319
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS21Q43AT
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS21Q43AT+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS21Q43ATN
Manufacturer:
DALLAS
Quantity:
20 000
DS21Q43A BLOCK DIAGRAM Figure 1-1
READER’S NOTE
This data sheet assumes a particular nomenclature of the E1 operating environment. There are 32 8-bit
timeslots in an E1 system which are numbered 0 to 31. Timeslot 0 is transmitted first and received first.
These 32 timeslots are also referred to as channels with a numbering scheme of 1 to 32. Timeslot 0 is
identical to channel 1, timeslot 1 is identical to channel 2, and so on. Each timeslot (or channel) is made
up of 8 bits which are numbered 1 to 8. Bit number 1 is the MSB and is transmitted first. Bit number 8 is
the LSB and is transmitted last. Throughout this data sheet, the following abbreviations will be used:
FAS
CAS
MF
Si
Frame Alignment
Channel Associated
Signaling
Multiframe
International bits
3 of 60
CRC4
CCS
Sa
E-bit
Cyclical Redundancy Check
Common Channel Signaling
Additional bits
CRC4 Error bits
DS21Q43A