DS21458-W+ Maxim Integrated, DS21458-W+ Datasheet - Page 237
DS21458-W+
Manufacturer Part Number
DS21458-W+
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS21458-W.pdf
(269 pages)
Specifications of DS21458-W+
Product
Framer
Number Of Transceivers
4
Data Rate
64 Kbps
Supply Current (max)
328 mA
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
CSBGA
Minimum Operating Temperature
0 C
Operating Supply Voltage
3.3 V
Supply Voltage - Max
3.465 V
Supply Voltage - Min
3.135 V
Part # Aliases
90-21458+W00
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Figure 36-10. Transmit Side 2.048MHz Boundary Timing (With Elastic Store
Enabled)
NOTES:
1) TSER data in channels 1, 5, 9, 13, 17, 21, 25, and 29 is ignored.
2) TCHBLK is programmed to block channel 31 (if the TPCSI bit is set, then the signaling data at TSIG
3) TCHBLK is forced to one in the same channels as TSER is ignored (Note 1).
4) The F-bit position for the T1 frame is sampled and passed through the transmit side elastic store into
will be ignored).
the MSB bit position of channel 1. (Normally the transmit side formatter overwrites the F-bit position
unless the formatter is programmed to pass-through the F-bit position).
TCHBLK
TSYSCLK
TSSYNC
TCHCLK
TSER
TSIG
2,3
1
CHANNEL 31
CHANNEL 31
A
B
C/A D/B
LSB MSB
237 of 269
CHANNEL 32
CHANNEL 32
A
DS21455/DS21458 Quad T1/E1/J1 Transceivers
B
C/A D/B
LSB
F
4
CHANNEL 1
CHANNEL 1
A
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