R5F2138CSDFP datasheet(59/63 Pages) RENESAS

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R8C/38T-A Group

4. Electrical Characteristics

R01DS0081EJ0100 Rev.1.00

Page 59 of 60

Dec 09, 2011

Notes:

1. When selecting the digital filter by the INTi input filter select bit, use an INTi input high pulse width of either (1/digital filter

sampling frequency × 3) or the minimum value of standard, whichever is greater.

2. When selecting the digital filter by the INTi input filter select bit, use an INTi input low pulse width of either (1/digital filter

sampling frequency × 3) or the minimum value of standard, whichever is greater.

Figure 4.10

Input Timing of External Interrupt INTi and Key Input Interrupt KIj (i = 0 to 4; j = 0 to 3)

Table 4.26

Timing Requirements of External Interrupt INTi (i = 0 to 4) and Key Input Interrupt KIj

(j = 0 to 3)

Symbol

Parameter

Standard

Unit

Vcc = 2.2 V, Topr = 25°C

Vcc = 3 V, Topr = 25°C

Vcc = 5 V, Topr = 25°C

Min.

Max.

Min.

Max.

Min.

Max.

tW(INH)

INTi input high width,

KIj input high width

1000 (1)

―

380 (1)

―

250 (1)

―

tW(INL)

INTi input low width,

KIj input low width

1000 (2)

―

380 (2)

―

250 (2)

―

INTi input

tW(INL)

tW(INH)

KIj input

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