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MC81F4216 Datasheet, PDF (40/200 Pages) Finechips – ABOV SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS
MC81F4x16
7.9 LVR (Low Voltage Reset) Electrical Characteristics
(TA = - 40 C to + 85C, VDD = 2.2 V to 5.5 V)
Parameter
Symbol Conditions
Min
Typ
2.2
2.4
LVR voltage
VLVR
–
2.5
2.7
2.7
3.0
3.6
4.0
Hysteresis voltage of
△V
–
LVR
–
10
Current consumption
ILVR
VDD = 3V
–
45
Max
2.6
2.9
3.3
4.4
100
80
Units
V
mV
uA
Note :
1. The current of LVR circuit is consumed when LVR is enabled by “ROM Option”.
2. 216/fx ( = 6.55 ms at fx = 10 MHz)
7.10 UART Timing Characteristics
(TA = - 40 C to + 85C, VDD = 2.2 V to 5.5 V)
Parameter
Symbol
Serial port clock cycle time
tSCK
Output data setup to clock rising edge
tS1
Clock rising edge to input data valid
tS2
Output data hold after clock rising edge
tH1
Input data hold after clock rising edge
tH2
Serial port clock High, Low level width
tHIGH,
tLOW
Min
Typ
1250
tCPU  16
590
tCPU  13
–
–
tCPU – 50
tCPU
0
–
470
tCPU  8
Max
1650
–
590
–
–
Units
nS
970
tHIGH
tLOW
tSCK
0.8 VDD
40
0.2 VDD
October 19, 2009 Ver.1.35