UPD178004A datasheet(34/56 Pages) NEC

Part #	UPD178004A

Description	8-BIT SINGLE-CHIP MICROCONTROLLERS

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Manufacturer	NEC [NEC]

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34

µPD178004A, 178006A, 178016A, 178018A

AC CHARACTERISTICS

(1) BASIC OPERATION (TA = –40 to +85

°C, VDD = 3.5 to 5.5 V)

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

Cycle time

TCY

fXX = fX/2 Note 1, fX = 4.5 MHz operation

0.89

14.22

µs

(Minimum instruction

fXX = fX Note 2,

4.5

≤ VDD ≤ 5.5 V

0.44

7.11

µs

execution time)

fX = 4.5 MHz operation

3.5

≤ VDD < 4.5 V

0.89

7.11

µs

TI1, TI2 input

fTI

4.5

≤ VDD ≤ 5.5 V

0

4.5

MHz

frequency

3.5 V

≤ VDD ≤ 4.5 V

0

275

kHz

TI1, TI2 input high/

tTIH,

4.5

≤ VDD ≤ 5.5 V

111

ns

low-level width

tTIL

3.5 V

≤ VDD ≤ 4.5 V

1.8

µs

Interrupt input high/

TINTH,

INTP0

8/fsam Note 3

µs

low-level width

TINTL

INTP1 to INTP6

10

µs

RESET low level

tRSL

10

µs

width

Notes 1. When oscillation mode selection (OSMS) register is set at 00H.

2. When OSMS is set at 01H.

3. In combination with bits 0 (SCS0) and 1 (SCS1) of sampling clock select register (SCS), selection

of fsam is possible between fXX/2N, fXX/32, fXX/64 and fXX/128 (when N = 0 to 4).

Remarks 1. fXX: System clock frequency (fX or fX/2)

2. fX: System clock oscillation frequency

TCY vs VDD (At FXX = FX/2 system clock operation)

TCY vs VDD (At FXX = FX system clock operation)

60

10

2.0

1.0

0.5

0.4

0

123

4

5

6

Power Supply Voltage VDD [V]

Operation

Guaranteed

Range

60

10

2.0

1.0

0.5

0.4

0

123

4

5

6

Power Supply Voltage VDD [V]

Operation

Guaranteed

Range

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UPD178004A Datasheet(PDF) 34 Page - NEC

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