7733 datasheet(788/940 Pages) RENESAS

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EXTERNAL ROM VERSION

7735 Group User’s Manual

20–18

20.10 Low voltage version

20.10.3 Functional description

Except for the power-on reset conditions, the M37735S4LHP has the same functions as the M37735S4BFP

For the other functions, refer to the following: “4. INTERRUPTS” to “9. A-D CONVERTER” in part 1, “2.

CENTRAL PROCESSING UNIT (CPU)” in part 2, “3. PROGRAMMABLE I/O PORTS” in part 2, and “10.

WATCHDOG TIMER” to “17. APPLICATIONS” in part 2.

The power-on reset condition of the M37735S4LHP is the same as that of the M37735MHLXXXHP. For the

power-on reset condition, refer to section “18.3 Functional description” in part 1.

20.10.4 Electrical characteristics

Except for “Icc,” the electrical characteristics of the M37735S4LHP are the same as those of the

M37735MHLXXXHP in the microprocessor mode. For the others, refer to section “18.4 Electrical

characteristics” in part 2.

Limits

Vcc = 5 V,

f(XIN) = 12 MHz (Square waveform),

(f(f2) = 6 MHz),

f(XCIN) = 32.768 kHz,

in operating (Note 1)

Vcc = 3 V,

f(XIN) = 12 MHz (Square waveform),

(f(f2) = 6 MHz),

f(XCIN) = 32.768 kHz,

in operating (Note 1)

Vcc = 3 V,

f(XIN) = 12 MHz (Square waveform),

(f(f2) = 0.75 MHz),

f(XCIN) : Stopped,

in operating (Note 1)

Vcc = 3V,

f(XIN) = 12 MHz (Square waveform),

f(XCIN) = 32.768 kHz,

when the WIT instruction is executed (Note 2)

Vcc = 3 V,

f(XIN) : Stopped,

f(XCIN) : 32.768 kHz,

in operating (Note 3)

Vcc = 3 V,

f(XIN) : Stopped,

f(XCIN) : 32.768 kHz,

when the WIT instruction is executed (Note 4)

Ta = 25 °C,

when clock is stopped

Ta = 85 °C,

when clock is stopped

ELECTRICAL CHARACTERISTICS (Vcc= 5 V, Vss = 0 V, Ta = –40 to 85 °C, unless otherwise noted)

Unit

Measuring conditions

Symbol

Parameter

ICC

Power source

current

Min.

Typ.

5.4

3.6

0.5

µA

Max.

10.8

7.2

1.0

Notes 1: This is applied when the main clock external input selection bit = “1,” the main clock division

selection bit = “0,” and the signal output disable selection bit = “1.”

2: This is applied when the main clock external input selection bit = “1” and the system clock stop

bit at wait state = “1.”

3: This is applied when CPU and the clock timer are operating with the sub clock (32.768 kHz)

selected as the system clock.

4: This is applied when the XCOUT drivability selection bit = “0” and the system clock stop bit at wait

state = “1.”

External bus is

operating,

output pins are

open, and the

other pins are

connected

to Vss.

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