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YTD439

Features: • Conforms to TTC Standards JT-I430 and JT-G961.• LT (line termination) function and CT (circuit termination) function.• DSU can be disconnected.• Transition to the sleep state possible by setting an I/O register.• 8-bit or 16-bit data bus selectable.•...

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SeekIC No. : 004550062 Detail

YTD439: Features: • Conforms to TTC Standards JT-I430 and JT-G961.• LT (line termination) function and CT (circuit termination) function.• DSU can be disconnected.• Transition to the...

YTD439 Data Sheet

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Part Number:
YTD439
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Conforms to TTC Standards JT-I430 and JT-G961.
• LT (line termination) function and CT (circuit termination) function.
• DSU can be disconnected.
• Transition to the sleep state possible by setting an I/O register.
• 8-bit or 16-bit data bus selectable.
• I/O access through registers.
• Frame assembling and disassembling function.
• I430 TTL output pin
• Built-in LAPD protocol (supports four links).
• Call control and D-channel packet function.
• Message exchange through I/O access (large 1088-byte FIFO).
• Supports CRC-CCITT and CRC-32.
• 128k/64k/56k rate adaption
• Supports PIAFS 64k/32k.
• Flexible rate adaption function.
• Transmission and reception: 128-byte FIFO × 2 channels.
• Switch circuit for 8 channels of B channel data.
• 512 k to 2,048 kHz PCM highway.
• Terminal block can be disconnected. Power can be cut off.
• Terminal block sleep mode.
• Power supply to the analog block: +5 V.Power supply to the digital block: +5 V or 3.3 V.
• 5 V tolerant I/O pin
• 100-pin SQFP.


Application

• Terminal adapter
• Remote router
• ISDN telephone
• ISDN home telephone
• ISDN Facsimile


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Min.
Max.
Unit
Supply voltage
AVDD1
- 0.3
6.0
V
AVDD2
- 0.3
6.0
V
DVDD1
- 0.3
5.7
V
DVDD2
- 0.3
5.7
V
Input voltage
AVIN1
- 0.3
AVDD1 + 0.3
V
AVIN2
- 0.3
AVDD2 + 0.3
V
DVIN1
- 0.3
5.75
V
DVIN2
- 0.3
5.75
V
Storage temperature
Tstg
- 50
125
(Based on AVSS1 = AVSS2 = DVSS = 0.0 V)


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