HD6433644R datasheet(166/549 Pages) RENESAS

166 / 549 page

Section 6 ROM

Rev. 6.00 Sep 12, 2006 page 146 of 526

REJ09B0326-0600

Table 6.11 Set Values of #a, #b, #c, and #d for Typical Operating Frequencies when

Sample Program Is Executed in On-Chip Memory (RAM)

Oscillation Frequency

fOSC = 16 MHz fOSC = 10 MHz fOSC = 8 MHz fOSC = 2 MHz

Operating Frequency

φφφφ = 8 MHz

φφφφ = 5 MHz

φφφφ = 4 MHz

φφφφ = 1 MHz

Meaning of Variable

Set Time

Counter Set

Value

Counter Set

Value

Counter Set

Value

Counter Set

Value

a (

φ) Programming time

(initial set value)

15.8 µs

H'000F

H'0009

H'0007

H'0001

b (

φ) tvs1

4 µs

H'06

H'04

H'03

H'01

c (

φ) tvs2

2 µs

H'03

H'02

H'01

d (

φ) Erase time (initial

set value)

6.25 ms

H'0C34

H'07A1

H'061A

H'0186

Formula:

If an operating frequency other than those shown in table 6.11 is used, the values can be calculated

using the formula shown below. The calculation is based on an operating frequency (

φ) of 5 MHz.

For a (

φ) and d (φ), after decimal calculation, round down the first decimal place and convert to

hexadecimal so that a (

φ) and d (φ) are 15.8 µs or less and 6.25 ms or less, respectively.

For b (

φ) and c (φ), after decimal calculation, round up the first decimal place and convert to

hexadecimal so that b (

φ) and c (φ) are 4 µs or more and 2 µs or more, respectively.

Operating frequency

φ [MHz]

a (

φ) to d (φ) =

× a (φ = 5) to d (φ = 5)

HD6433644R Datasheet(PDF) 166 Page - Renesas Technology Corp

HD6433644R Datasheet(HTML) 166 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL