XR68C681CJ EXAR [Exar Corporation], XR68C681CJ Datasheet - Page 6

• Manufacturer Part Number: XR68C681CJ
• Description: CMOS Dual Channel UART (DUART)
• Manufacturer: EXAR [Exar Corporation]

XR68C681
PIN DESCRIPTION (CONT’D)
Pin Number
Pin Number
Symbol
Type
Description
(44 pin PLCC)
(40 pin DIP)
Transmitter Serial Data Output.
No Connect.
Receiver Serial Data Input.
Crystal Output or External Clock Input.
Crystal Input.
Master Reset.
Chip Select.
Input 2.
Interrupt Acknowledge.