XR82C684J/44-F Exar Corporation, XR82C684J/44-F Datasheet - Page 55

• Manufacturer Part Number: XR82C684J/44-F
• Description: Quad Channel UART
• Manufacturer: Exar Corporation

Specifications of XR82C684J/44-F

• Features: *
• Number Of Channels: 4, QUART
• Fifo's: 3 Byte
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XR82C684
Figure 28A. Block Diagram of the Portion of the QUART Timing Control Block Which Services
Channels C and D
Figure 28
Figure 28A
Please note that each “half” of the Timing Control
Block consists of a 16-bit Counter/Timer, a Baud Rate
Generator, a set of four external clock inputs and four 32:1
MUX’s. Each “half” of the Timing Control Block shares the
Table 15
output of the Oscillator Circuit.
Table 15
D.1 Oscillator Circuit:
Figure 29