XR68C681CJ-F Exar Corporation, XR68C681CJ-F Datasheet - Page 35
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XR68C681CJ-F
Manufacturer Part Number
XR68C681CJ-F
Description
IC UART CMOS DUAL 44PLCC
Manufacturer
Exar Corporation
Type
CMOS Dual Channel UARTr
Datasheet
1.XR68C681J-F.pdf
(75 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XR68C681CJ-F
Manufacturer:
EXAR
Quantity:
1 150
Company:
Part Number:
XR68C681CJ-F
Manufacturer:
Exar Corporation
Quantity:
10 000
Part Number:
XR68C681CJ-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
D.8 Explanation of Clock Timing Signals
t
t
Time - IP2 Input
CLK
CTC
f
CLK
- X1/CLK (External) High or Low Time
- Counter/Timer External Clock High or Low
Symbol
- X1/CLK Crystal High or Low Time
Table 11. The XR68C681 Data Sheet presents the following parameter specifications, in the
Parameter
“AC ELECTRICAL CHARACTERISTICS”
f
Input
t
via IP2, IP3, IP4 and IP5
CTC
RTX
- RXC and TXC (External) High or Low Time -
- Counter/Timer External Clock Frequency - IP2
Min.
Limits
Typ.
XR68C681
Max.
Units