XR82C684CJ/44-F Exar Corporation, XR82C684CJ/44-F Datasheet - Page 68

• Manufacturer Part Number: XR82C684CJ/44-F
• Description: IC UART CMOS QUAD 44PLCC
• Manufacturer: Exar Corporation
• Type: CMOS Quad Channel UARTr

Specifications of XR82C684CJ/44-F

• Number Of Channels: 4, QUART
• Package / Case: 44-LCC (J-Lead)
• Features: *
• Fifo's: 3 Byte
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Data Rate: 1 Mbps
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 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: 4
• 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: 1016-1325-5

D.7 Explanation of Clock Timing Signals
 tCLK - X1/CLK (External) High or Low Time
 fCLK - X1/CLK Crystal High or Low Time
 tCTC - Counter/Timer External Clock High or
the parameter tRTX, which is another spec associated
with the IP2 input.
XR82C684
Low Time - IP2/IP10 Input
Symbol
Please note that this limit has no relationship with
Parameter
Figure 37. Clock Timing
IP2/IP10 Input
 tRTX - RXC and TXC (External) High or Low Time
 fRTX - RXC and TXC (External) Frequency - via
fCTC - Counter/Timer External Clock Frequency -
- via IP3 - IP6, and IP11 - IP14
IP3 - IP6, and IP11 - IP14
Min.
Limits
Typ.
Max.
Units