R5F36CAMDFB datasheet(56/94 Pages) RENESAS

56 / 94 page

REJ03B0277-0100 Rev.1.00 Jul.15, 2009

Page 54 of 90

M16C/6C Group

5. Electrical Characteristics

Figure 5.5

Power-On Reset Circuit Electrical Characteristics

Notes:

The measurement condition is VCC1 = 2.7 to 5.5 V and Topr = 25°C.

Waiting time until the internal power supply generation circuit stabilizes when power is on.

Table 5.16

Power Supply Circuit Timing Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

td(P-R)

Internal power supply stability time when power is on (2)

5ms

td(R-S)

STOP release time

150

μs

td(W-S)

Low power mode wait mode release time

150

μs

0.1 V

Internal

reset signal

Voltage detection 0

circuit response time

fOCO-S

× 32

External Power VCC1

(1)

det0

t rth

(2)

w(por)

t rth

(1)

det0

fOCO-S

× 32

Notes:

Vdet0 indicates the voltage detection level of the voltage detection 0 circuit.

When using power-on reset, hold the external power VCC1 at or below the valid voltage (0.1 V) during tw(por), and

then turn it on.

tw(por) is 30 s or more when -20 °C ≤ Topr ≤ 85 °C, and 3000 s or more when -40 °C ≤ Topr < -20 °C.

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