DS21Q42T Maxim Integrated Products, DS21Q42T Datasheet - Page 99

• Manufacturer Part Number: DS21Q42T
• Description: IC FRAMER ENHANCED T1 4X 128TQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q42T

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 20-12. 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 1 in the same channels as TSER is ignored (Note 1).
4) The F-bit position (MSB position of channel 1) for the T1 frame is sampled and passed through the
is ignored).
transmit side elastic store (normally the transmit side formatter overwrites the F-bit position unless
the formatter is programmed to pass-through the F-bit position).
99 of 116