PD17225_15 Datasheet, PDF (72/86 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

µPD17225, 17226, 17227, 17228
AC Characteristics (TA = –40 to +85°C, VDD = 2.0 to 3.6 V)
Item
CPU Clock Cycle Time^Note
(Instruction Execution Time)
INT High/Low Level Width
RESET Low Level Width
Symbol
Conditions
tCY1
tCY2 VDD = 2.2 to 3.6 V
tINTH, tINTL
tRSL
Note
The CPU clock cycle time (instruction execution time)
is determined by the oscillation frequency of the reso-
nator connected and SYSCK (RF: address 02H) of the
register file.
The figure on the right shows the CPU clock cycle time
tCY vs. supply voltage VDD characteristics (refer to 4.
CLOCK GENERATOR CIRCUIT).
MIN. TYP. MAX. Unit
3.8
33
µs
1.9
33
µs
20
µs
10
µs
tCY vs VDD
40
33
10
9
8
7
6
5
4 _3.8
3
Operation
guaranteed
area
2 _1.9
1
2.2
3.6
0
1
2
3
4
Supply voltage VDD (V)
70
Data Sheet U12643EJ2V0DS00