User’s Manual U16898EJ3V0UD
371
CHAPTER 24 PACKAGE MARKING INFORMATION
•
20-pin plastic SSOP
(1) Blank products
<1>
µ
PD78F9221
F9221
ZZ
YWWP
Index mark
Leed-free mark
Note
<2>
µ
PD78F9222
F9222
ZZ
YWWP
Index mark
Leed-free mark
Note
(2) Products for which writing has already been performed
<1>
µ
PD78F9221
F9221
XXXZZ
YWWP
Index mark
Leed-free mark
Note
<2>
µ
PD78F9222
F9222
XXXZZ
YWWP
Index mark
Leed-free mark
Note
W:
Week code (2-digit number)
Y:
Last digit of year (1-digit number)
Z :
Grade indication
XXX : ROM code
P:
In-house control code
Note
The lead-free marking is applied only on lead-free products.