M16CSLASH26 datasheet(180/239 Pages) RENESAS

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Renesas Technology Corp.

Electrical Characteristics

174

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Table 1.18.6. Low Voltage Detection Circuit Electrical Characteristics (Note 1)

Symbol

Standard

Typ.

Unit

Measuring condition

Min.Max.

Parameter

Vdet4

Power supply down detection voltage (Note 1)

3.8

4.4

3.3

Vdet3

Reset level detection voltage (Note 1)

2.8

3.6

2.2

0.8

2.9

4.0

Vdet3s

Low voltage reset retention voltage (Note 2)

Vdet3r

Low voltage reset release voltage

2.2

Note 1: VDET4 > VDET3

Note 2: VDET3s is the min voltage at which "hardware reset 2" is maintained. Below this voltage, "hardware reset 1" (using reset pin) must be

applied in order to resume operation.

VCC = 0.8 to 5.5V

Table 1.18.7. Power Supply Circuit Timing Characteristics

µs

Symbol

Standard

Typ.

Unit

Measuring condition

Min.Max.

Parameter

150

6 (Note 1)

td(W-S)

td(M-L)

Time for internal power supply stabilization when main clock oscillation starts

td(S-R)

Hardware reset 2 release wait time

µs

td(E-A)

Low voltage detection circuit operation start time (Note 3)

µs

td(R-S)

release time (Note 2)

TOP

Low power dissipation mode wait mode release time (Note 2)

Note 1: When Vcc = 5V

Note 2: This is the time between interrupt for (STOP/WAIT) mode release and resumption of CPU clock operation.

Note 3: After enabling low voltage detection, this time is required before proper detection can occur.

VCC = 2.7 to 5.5V

VCC = VDET3r to 5.5V

VCC = 2.7 to 5.5V

Table 1.18.8. Hardware Reset 2 Release Wait Time

CPU clock

td(S-R)

Vdet3r

VCC

Table 1.18.9. STOP Release Time

Interrupt for

stop mode

release

CPU clock

td(R-S)

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