Technology features
- single 3.3V power supply
- CMOS technology 3.3V, 5V tolerant on nearly all inputs
- MQFP 208 package, 0.5mm pin pitch
- RoHS and REACH compliant
- Temperature Range and Soldering Reflow
- MSL 3
- Packed on JEDEC tray
HFC Series targets PC-based applications and comes with an integrated local-bus interface, mostly used for the connection to the PCI bus. In PCIe environments, a PCI-to-PCIe bridge chip can be used to adapt HFC Series.
HFC-4S and HFC-8S are a HDLC B- and D-channel controller with 4 resp. 8 integrated S/T interfaces. They can be used for ISDN basic rate lines. All channels are served fully duplex by FIFOs. Also implemented is a PCM128 / PCM64 / PCM30 highway interface and an universal external bus interface.
- ICs of HFC Series have integrated HDLC controllers for all kinds of BRI equipment
- A PCM128 / PCM64 / PCM30 interface for CODEC or inter-chip connection is also integrated
- single chip ISDN-S/T-controller with B- and D-channel HDLC support
- full I.430 ITU S/T ISDN support in TE and NT mode
- 32 independent read and write HDLC-channels
for e.g. 8 ISDN B-channels, 4 ISDN D-channels and 20 timeslots on the PCM interface - B-channel transparent mode independently selectable
- up to 64 FIFOs; FIFO-size configurable
- each FIFO can be assigned to an arbitrary channel of any S/T or PCM interface
- PCM128 / PCM64 / PCM30 interface configurable to interface for inter-chip connection (e.g. external CODECs)
- universal external bus interface configurable into PCI bus, ISA-PnP, PCMCIA or integrated 8 bit parallel microprocessor interface as well as SPI
It's all about the port granularity: The difference between ICs of HFC Series is based solely on the three types of integrated interfaces:
Block diagram for HFC-4S
Block diagram of HFC-8S
Block diagram of HFC-E1
Benefits of HFC Series
- Low power consumption
- Easy inter-chip connection to telecom ICs
- Fully digital chip architecture
- Excellent price
- Comprehensive software support