DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 13

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

2.6 System Interface
2.7 HDLC Controllers
2.8 Test and Diagnostics
Dual two-frame, independent receive and transmit elastic stores
− Independent control and clocking
− Controlled-slip capability with status
− Minimum-delay mode supported
Supports T1 to E1 conversion
Ability to pass the T1 F-bit position through the elastic stores in the 2.048MHz backplane mode
Programmable output clocks for fractional T1, E1, H0, and H12 applications
Interleaving PCM bus operation with rates of 4.096MHz, 8.192MHz, and 16.384MHz
Hardware-signaling capability
− Receive-signaling reinsertion to a backplane, multiframe sync
− Availability of signaling in a separate PCM data stream
− Signaling freezing
Access to the data streams in between the framer/formatter and the elastic stores (DS21455)
User-selectable synthesized clock output
Two independent HDLC controllers
Fast load and unload features for FIFOs
SS7 support for FISU transmit and receive
Independent 128-byte Rx and Tx buffers with interrupt support
Access FDL, Sa, or single/multiple DS0 channels
DS0 access includes Nx64 or Nx56
Compatible with polled or interrupt-driven environments
Bit Oriented Code (BOC) support
Programmable Bit Error Rate Testing (BERT)
Pseudorandom patterns including QRSS
User-defined repetitive patterns
Daly pattern
Error insertion for single bit or continuous
Insertion options include continuous and absolute number with selectable insertion rates
Total-bit and errored-bit counters
Payload Error Insertion
Errors can be inserted over the entire frame or selected channels
F-bit corruption for line testing
Loopbacks (remote, local, analog, and per-channel payload loopback)
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