W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 9

• Manufacturer Part Number: W6691CD
• Description: ISDN S/T Interface Transceiver
• Manufacturer: WINBOND [Winbond]

2. FEATURES
Full Duplex 2B+D S/T interface transceiver compliant with ITU I.430 Recommendation
One D channel HDLC controller
Two B channel HDLC controller
Various B channel switching capabilities and PCM intercom
Two PCM CODEC interfaces for speech and POTS application
GCI interface connects with other peripheral device in TE, LT-S and LT-T mode.
Multi-frame synchronization
8-bits Intel mode or Motorola mode interface accesses B channel and Command/Indication channel.
The timing clock recovery depends on operating mode.
DPLL circuit designed in chip for NT2 application.
Four kind of the extended interrupt trigger mode.
Two kind of output interrupt polarity selection can be programmed.(Positive level and negative Level)
Added reset signal to reset other chip.
Loop back function for testing.
Layer1 Activate Indication Output can be connected to LED
Two of programmable timer
3.3 Volt power supply
3.3 Volt output; Maximum Input is 5.0Volt
Advanced CMOS technology
64 pin LQFP or 68 pin PLCC package
- Maskable address recognition
- Transparent (HDLC) mode
- FIFO buffer (2 * 64)
- Maskable address recognition
- Transparent (HDLC) mode
- FIFO buffer (2 * 128)
9
Preliminary W6691
Publication Release Date: Sep 2001
Revision 1.1