NEC PD78078 用户手册

µ

µ

The major differences between the 

µ

PD78078, 78075B Subseries, and 

µ

PD78070A are shown in Table A-1.

µ

µ

Part Number

µ

PD78078 Subseries

µ

PD78075B Subseries

µ

PD78070A

Item

Anti-EMI noise measure

Not provided

Provided

Not provided

Product equipped with I

2

C bus

Available

Not available

Available

Supply voltage

V

DD

 = 1.8 to 5.5 V

V

DD

 = 2.7 to 5.5 V

Internal ROM size

µ

PD78076

: 48 Kbytes

µ

PD78074B : 32 Kbytes

Not provided

µ

PD78078, 78P078

µ

PD78075B : 40 Kbytes

: 60 Kbytes

Internal expansion RAM size

1024 bytes

None

I/O port

Total

88

61

CMOS input

2

CMOS I/O

78

51

N-ch open-drain I/O

8

Pins with

Pin with pull-up resistor

86 (78 for 

µ

PD78P078)

51

additional

Medium-voltage pin

8

Not provided

functions

LED direct drive output

16

Not provided

4

AV

DD

 pin

Provided

Not provided

Provided

(AV

REF0

 pin functions alternately)

External

Bus mode

Selectable from multiplexed bus mode or separate

Only separate bus mode

expansion

bus mode

function

Memory expansion mode

Selectable from four types of memory expansion modes

Only full-address mode

ROM correction function

Provided

Not provided

Package

• 100-pin plastic QFP

• 100-pin plastic QFP

• 100-pin plastic QFP

(Fine pitch) (14 x 14 mm)

(Fine pitch) (14 x 14 mm)

(Fine pitch) (14 x 14 mm)

• 100-pin plastic LQFP

• 100-pin plastic LQFP

• 100-pin plastic LQFP

(Fine pitch) (14 x 14 mm)

(Fine pitch) (14 x 14 mm)

(Fine pitch) (14 x 14 mm)

• 100-pin plastic QFP

• 100-pin plastic QFP

• 100-pin plastic QFP

(14 x 20 mm)

(14 x 20 mm)

(14 x 20 mm)

• 100-pin ceramic WQFN

Electrical specifications

Refer to the data sheet of individual product.

Recommended soldering conditions

Notes 1. The number of I/O ports includes the pins with additional functions.

2. Not available in the Y subseries

3. PROM version only

4. Under development