uPD789074 Subseries 8-Bit Single-Chip Microcontrollers UD - Home

CHAPTER 1 GENERAL1.1 Expanded-Specification Products and Conventional ProductsExpanded-specification products and conventional products refer to the following products.Expanded-specification products: Products with a rank Note other than K• Mask ROM versions for which orders were received after December 1, 2001.• µPD78F9076 shipped after January 1, 2002.Conventional products: Products with rank Note K• Products other than the above expanded-specification products.Note The rank is indicated by the 5th digit from the left in the lot number marked on the package.Lot number O O O O ∆Year code Week codeRankExpanded-specification products and conventional products differ in operating frequency ratings. The differencesare shown in Table 1-1.Table 1-1. Differences Between Expanded-Specification Products and Conventional ProductsPower Supply Voltage (VDD)Guaranteed Operating Speed (Operating Frequency)Conventional ProductsExpanded-Specification Products4.5 to 5.5 V 5 MHz (0.4 µs) 10 MHz (0.2 µs)3.0 to 5.5 V 5 MHz (0.4 µs) 6 MHz (0.33 µs)2.7 to 5.5 V 5 MHz (0.4 µs) 5 MHz (0.4 µs)1.8 to 5.5 V 1.25 MHz (1.6 µs) 1.25 MHz (1.6 µs)RemarkThe parenthesized values indicate the minimum instruction execution time.20User’s Manual U14801EJ3V1UD