XR88C681CP/40 Exar Corporation, XR88C681CP/40 Datasheet - Page 94

• Manufacturer Part Number: XR88C681CP/40
• Description: Dual Channel UART
• Manufacturer: Exar Corporation

Specifications of XR88C681CP/40

• Features: *
• Number Of Channels: 2, DUART
• Fifo's: 1 Byte, 3 Byte
• Voltage - Supply: 5V
• With Parallel Port: Yes
• With Cmos: Yes
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev. 2.11
OP0 - OP7
IP0 - IP6
-WR or
-RD or
-CS
-CS
Interrupt
Output
-RD or
-CS or
-WR
t
PS
OLD DATA
Figure 54. Port Timing
Figure 55. Interrupt Timing
94
t
PD
t
IR
t
PH
NEW DATA