DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 208
![IC TXRX QUAD T1/E1/J1 SCT 256BGA](/photos/6/82/68222/406-256-bga_sml.jpg)
DS21Q55
Manufacturer Part Number
DS21Q55
Description
IC TXRX QUAD T1/E1/J1 SCT 256BGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21Q55.pdf
(237 pages)
Specifications of DS21Q55
Function
Transceiver
Interface
E1, J1, T1
Number Of Circuits
4
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
256-BGA
Includes
BERT Generator and Detector, Dual HDLC Controllers
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power (watts)
-
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Manufacturer:
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Figure 31-3. Receive-Side Boundary Timing (with elastic store disabled)
Note 1: RCHBLK is programmed to block channel 24.
Note 2: Shown is RLINK/RLCLK in the ESF framing mode.
Figure 31-4. Receive-Side 1.544MHz Boundary Timing (with Elastic Store
Enabled)
Note 1: RSYNC is in the output mode (IOCR1.4 = 0).
Note 2: RSYNC is in the input mode (IOCR1.4 = 1).
Note 3: RCHBLK is programmed to block channel 24.
RCHBLK 1
RCHBLK
RSYSCLK
RFSYNC
RCHCLK
RMSYNC
RCHCLK
RSYNC
RSYNC
RLINK 2
RLCLK
RSYNC
RSER
RCLK
RSIG
RSIG
RSER
2
1
3
CHANNEL 23
CHANNEL 23
CHANNEL 23
A
CHANNEL 23
A
B
B
C/A D/B
C/A D/B
LSB
LSB
MSB
MSB
208 of 237
CHANNEL 24
CHANNEL 24
CHANNEL 24
A
CHANNEL 24
A
B
B
C/A D/B
C/A D/B
LSB
LSB
F
F
MSB
MSB
CHANNEL 1
CHANNEL 1
CHANNEL 1
CHANNEL 1
A
A