H8SXSLASH1663M datasheet(1450/1504 Pages) RENESAS

Nome de Peças	H8SX/1663M

Descrição Electrónicos	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

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Section 30 Electrical Characteristics

Rev. 2.00 Sep. 24, 2008 Page 1418 of 1468

REJ09B0412-0200

30.9

Power-On Reset Circuit and Voltage-Detection Circuit

Characteristics (H8SX/1668M Group)

Table 30.15 Power-On Reset Circuit and Voltage-Detection Circuit Characteristics

Conditions: V

CC = PLLVCC VSS = PLLVSS = AVSS = 0 V,

a = – 20°C to +75°C (regular specifications),

a = – 40°C to +85°C (wide-range specifications)

Item

Symbol Min.

Typ.

Max.

Unit

Test

Conditions

Voltage detection

circuit (LVD)

det

3.00

3.10

3.20

Figure 30.60

Voltage detection

level

Power-on reset

(POR)

POR

2.48

2.58

2.68

Figure 30.59

Internal reset time

POR

Power-off time*

VOFF

200



Figure 30.59

Figure 30.60

Note:

Power-off time (t

VOFF) is the time over which Vcc is lower than minimum value of the

voltage-detection level of the POR and LVD.

tVOFF

tPOR

VPOR

tPOR

VCC

Internal reset signal

("L" is enabled)

Figure 30.59 Power-On Reset Timing

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