TMC2084-HT SMSC, TMC2084-HT Datasheet - Page 73

• Manufacturer Part Number: TMC2084-HT
• Description: IC CTRLR CIRCLINK TM 48-TQFP
• Manufacturer: SMSC
• Series: CircLink™r

Specifications of TMC2084-HT

• Controller Type: I/O Controller
• Interface: Transceiver
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 638-1025

Standalone Mode CircLink
Datasheet
4.3
SMSC TMC2084
Values of Pull-Up and Pull-Down Resisters
Care must be taken when selecting the values of the pull-up and pull-down resisters used for ports A, B, C
and D and shared pins (PD7 - 0 and TXD):
Higher resistance values result in longer stabilization time for the transition from the active state to the
high-impedance state. Shorter stabilization time follows from use of less resistance. However, lower
resistance allows a higher output current in the drive state and wastes output current, limiting the
necessary load current.
As a guideline, a 10 kΩ resister can typically be used; If shorter transition time from the active state to the
high-impedance state is needed, use 4.7 kΩ.
TM
Controller
DATASHEET
Page 73
Revision 0.2 (10-23-08)