
User’s Manual U16315EJ3V1UD
17
CHAPTER 1 OUTLINE
1.1 Expanded-Specification Products and Conventional Products (Standard Products, (A) Grade
Products Only)
The expanded-specification products and conventional products refer to the following products.
Expanded-specification products: Products with a rank
Note E or after
Mask ROM versions for which orders were received at the end of May 2004
or thereafter
Flash memory versions for which orders were received at the end of August
2004 or thereafter
Conventional products:
Products with rank
Note I or K
Products other than the above expanded-specification products
Note
The rank is indicated by the 5th digit from the left in the 3rd column (lot number) marked on the package.
Lot number
× × × ×
Expanded-specification products and conventional products of standard products and (A) grade products differ in
operating frequency ratings. The differences are shown in Table 1-1.
Table 1-1. Differences Between Expanded-Specification Products and Conventional Products of
Standard Products and (A) Grade Products
Supply Voltage (VDD)
Guaranteed Operating
Speed (Minimum Instruction
Execution Time)
Conventional Products (Rank: I, K)
Expanded-Specification Products
(Rank: E or After)
12 MHz (0.166
s)
Not used
4.0 to 5.5 V
10 MHz (0.2
s)
4.0 to 5.5 V
3.5 to 4.0 V
8.38 MHz (0.238
s)
3.3 to 4.0 V
3.0 to 3.5 V
5 MHz (0.4
s)
2.7 to 3.3 V
2.5 to 3.0 V
Cautions 1. The specifications of the peripheral functions (timer, serial interface, A/D converter, etc.)
are conventional when operating at VDD = 2.7 to 5.5 V. Therefore, to select the count
clock or base clock of a peripheral function, satisfy the following conditions.
VDD = 4.0 to 5.5 V: Count clock or base clock ≤ 10 MHz
VDD = 3.3 to 4.0 V: Count clock or base clock ≤ 8.38 MHz
VDD = 2.7 to 3.3 V: Count clock or base clock ≤ 5 MHz
VDD = 2.5 to 2.7 V: Count clock or base clock ≤ 2.5 MHz
2. Rewrite the flash memory in the ranges of fX = 2 to 10 MHz and VDD = 2.7 to 5.5 V as ever.
Year
code
Week
code
Rank