NEC PD78F9488 Manuale Utente

User’s Manual  U15331EJ4V1UD

The 

µ

PD789489 subseries should be soldered and mounted under the following recommended conditions. 

For soldering methods and conditions other than those recommended below, contact an NEC Electronics sales 

representative.   

For technical information, see the following website. 
 

Semiconductor Device Mount Manual (http://www.necel.com/pkg/en/mount/index.html)

 

 
 

 
 (1) 

µ 

PD789488GC-

×××-8BT:  80-pin plastic QFP (14x14) 

 µ 

PD78F9488GC-8BT:    80-pin plastic QFP (14x14) 

 µ 

PD789489GC-

×××-8BT: 80-pin plastic QFP (14x14) 

Soldering Method 

Soldering Conditions 

Recommended 

Condition Symbol 

Infrared reflow 

Package peak temperature: 235°C, Time: 30 seconds max. (at 210°C or higher), 
Count: Twice or less 

IR35-00-2 

VPS 

Package peak temperature: 215°C, Time: 40 seconds max. (at 200°C or higher), 
Count: Twice or less 

VP15-00-2 

Wave soldering 

Solder bath temperature: 260°C max., Time: 10 seconds max., Count: Once, 
Preheating temperature: 120°C max. (package surface temperature) 

WS60-00-1 

Partial heating 

Pin temperature: 350°C max., Time: 3 seconds max. (per pin row) 

– 

(2) 

µ 

PD789488GK-

×××-9EU: 80-pin plastic TQFP (fine pitch) (12x12) 

 µ 

PD78F9488GK-9EU:   80-pin plastic TQFP (fine pitch) (12x12) 

 µ 

PD789489GK-

×××-9EU: 80-pin plastic TQFP (fine pitch) (12x12) 

Soldering Method 

Soldering Conditions 

Recommended 

Condition Symbol 

Interface reflow 

Package peak temperature: 235

°C, Time:30 seconds max. (at 210°C or higher), 

Count: Twice or less, Exposure limit: 7 days

 (after that, prebake at 125

°C for 

10 hours) 

IR35-107-2 

VPS 

Package peak temperature: 215

°C, Time:40 seconds max. (at 200°C or higher), 

Count: Twice or less, Exposure limit: 7 days

 (after that, prebake at 125

°C for 

10 hours) 

VP15-107-2 

Partial heating 

Pin temperature: 350

°C max., Time: 3 seconds max. (per pin row) 

− 

Note   After opening the dry peak, store it at 25

°C or less and 65% RH or less for the allowable storage period.