UPD78044F datasheet(53/90 Pages) NEC

53 / 90 page

µPD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)

Data Sheet U16369EJ1V0DS

AC Characteristics

(1) Basic Operation (TA = –40 to +85

°C, VDD = 1.8 to 5.5 V)

4.0 V

≤ VDD ≤ 5.5 V

2.7 V

≤ VDD < 4.0 V

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Cycle time

TCY

Operating with

0.238

µs

(Min. instruction

main system clock

0.4

µs

execution time)

1.6

µs

Operating with subsystem clock

103.9Note 1

122

125

µs

TI00, TI01 input

tTIH0, tTIL0

4.0 V

≤ VDD ≤ 5.5 V

2/fsam+0.1Note 2

µs

high-/low-level

2.7 V

≤ VDD < 4.0 V

2/fsam+0.2Note 2

µs

width

1.8 V

≤ VDD < 2.7 V

2/fsam+0.5Note 2

µs

TI50, TI51 input

fTI5

2.7 V

≤ VDD ≤ 5.5 V

MHz

frequency

1.8 V

≤ VDD < 2.7 V

275

kHz

TI50, TI51 input

tTIH5, tTIL5

2.7 V

≤ VDD ≤ 5.5 V

100

high-/low-level

1.8 V

≤ VDD < 2.7 V

1.8

width

Interrupt request

tINTH, tINTL

INTP0 to INTP3,

2.7 V

≤ VDD ≤ 5.5 V

µs

input high-/low-

P40 to P47

1.8 V

≤ VDD < 2.7 V

µs

level width

RESET

tRSL

2.7 V

≤ VDD ≤ 5.5 V

µs

low-level width

1.8 V

≤ VDD < 2.7 V

µs

Notes 1. Value when the external clock is used. When a crystal resonator is used, it is 114

µs (MIN.).

2. Selection of fsam = fX, fX/4, fX/64 is possible using bits 0 and 1 (PRM00, PRM01) of prescaler mode register

0 (PRM0). However, if the TI00 valid edge is selected as the count clock, the value becomes fsam = fX/8.

1.8 V

≤ VDD < 2.7 V

UPD78044F Datasheet(PDF) 53 Page - NEC

UPD78044F Datasheet(HTML) 53 Page - NEC

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