Chapter 22 electrical specifications – NEC PD78F9488 User Manual

Page 342

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342

User’s Manual U15331EJ4V1UD

CHAPTER 22 ELECTRICAL SPECIFICATIONS (

µ

PD789488, 78F9488, 789489, 78F9489)

Absolute Maximum Ratings (T

A

= 25

°C)

Parameter Symbol

Conditions

Ratings

Unit

V

DD

Power supply voltage

AV

DD

V

DD

= AV

DD

−0.3 to +6.5

V

V

PP

µ

PD78F9488, 78F9489 only, Note 1

−0.3 to +10.5

V

V

I1

P00 to P07, P10, P11, P20 to P25, P30 to
P34, P60 to P67, P70 to P73

Note 2

,

P80 to P87

Note 2

, X1, X2, XT1, XT2, RESET

−0.3 to V

DD

+ 0.3

Note 3

V

N-ch open drain

−0.3 to +13

V

Input voltage

V

I2

P50 to P53

On-chip pull-up resistor

−0.3 to V

DD

+ 0.3

Note 3

V

P00 to P07, P10, P11, P20 to P25,
P30 to P34, P50 to P53, P80 to P87

Note 2

−0.3 to V

DD

+ 0.3

Note 3

V

Output voltage

V

O

S0 to S15, S16 to S27

Note 2

, COM0 to COM3

−0.3 to V

LC0

+ 0.3

V

Per pin

−10 mA

Output current, high

I

OH

Total for all pins

−30 mA

Per pin

30

mA

Output current, low

I

OL

Total for all pins

160

mA

Operating ambient temperature

T

A

Normal

operation

−40 to +85

°C

Flash memory programming

10 to 40

°C

Storage temperature

T

stg

µ

PD789488, 789489

−65 to +150

°C

µ

PD78F9488, 78F9489

−40 to +125

°C

Notes 1. Make sure that the following conditions of the V

PP

voltage application timing are satisfied when the flash

memory is written.
When supply voltage rises
V

PP

must exceed V

DD

10

µs or more after V

DD

has reached the lower-limit value (1.8 V) of the operating

voltage range (see a in the figure below).

When supply voltage drops
V

DD

must be lowered 10

µs or more after V

PP

falls below the lower-limit value (1.8 V) of the operating

voltage range of V

DD

(see b in the figure below).

1.8 V

V

DD

0 V

0 V

V

PP

1.8 V

a

b

2. Only when selected by a mask option or port function register
3. 6.5 V or less

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