XR68C681CJ-F Exar Corporation, XR68C681CJ-F Datasheet - Page 66

• Manufacturer Part Number: XR68C681CJ-F
• Description: IC UART CMOS DUAL 44PLCC
• Manufacturer: Exar Corporation
• Type: CMOS Dual Channel UARTr

Specifications of XR68C681CJ-F

• Number Of Channels: 2, DUART
• Package / Case: 44-LCC (J-Lead)
• Features: *
• Fifo's: 1 Byte, 3 Byte
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Data Rate: 1 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current: 15 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Propagation Delay Time Ns: 400 ns
• No. Of Channels: 2
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: PLCC
• No. Of Pins: 44
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1323-5

J. Timing Diagrams
Note:
AC testing inputs are driven at 0.4V for a logic “0” and 2.4V for a logic “1” except for -40 to 85
C and -55 to 125
C, logic “1” shall be
2.6V. Timing measurements are made at 0.8V for a logic “0” and 2.0V for a logic “1”.
XR68C681
Figure 31. Input and Output Levels for Timing Measurements
Figure 32. Reset Timing