68901N04 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'68901N04' PDF : 33 Pages View PDF
MK68901
TIMER A.C. CHARACTERISTICS
Definitions :
Error = Indicated Time Value - Actual Time Value
tpsc = tCLKx Prescale Value
Internal Timer Mode
Single Interval Error (free running) (note 2)
Cumulative Internal Error
Error between Two Timer Reads
Start Timer to Stop Timer Error
Start Timer to Read Timer Error
Start Timer to Interrupt Request Error (note 3)
± 100ns
0
± (tpsc + 4tCLK)
+ (2tCLK + 100ns) to - (tpsc + 6tCLK + 100ns)
+ 0 to – (tpsc + 6t CLK + 400ns)
- 2t CLK to – (4tCLK + 800ns)
PULSE WIDTH MEASUREMENT MODE
Measurement Accuracy (note 1)
Minimum Pulse Width
+ 2tCLK to – (tpsc + 4tCLK)
4t CL K
EVENT COUNTER MODE
Minimum Active Time of TAI, TBI
Minimum Inactive Time of TAI, TBI
Notes : 1. Error may be cumulative if repetitively performed.
2. Error with respect to TOUT or INT if note 3 is true.
3. Assuming it is possible for the timer to make an interrupt request immediately.
4t CL K
4t CL K
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