M32CSLASH8A datasheet(328/372 Pages) RENESAS

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M32C/8A Group

23. Electrical Characteristics

Rev.1.00

Jul 15, 2007

Page 311 of 352

REJ09B0385-0100

Switching Characteristics

(VCC1 = VCC2 = 4.2 to 5.5 V, VSS = 0 V, Topr = -20 to 85

°C unless otherwise specified)

Table 23.26

Microprocessor Mode (when accessing external memory space)

NOTES:

1. Values, which depend on BCLK frequency, can be obtained from the following equations.

2. Values, which depend on BCLK frequency and external bus cycles, can be obtained from the following

equations.

3. tc [ns] is added when recovery cycle is inserted.

Symbol

Parameter

Measurement

Condition

Standard

Unit

Min.

Max.

td(BCLK-AD)

Address output delay time

See Figure

23.2

th(BCLK-AD)

Address output hold time (BCLK standard)

-3

th(RD-AD)

Address output hold time (RD standard)(3)

th(WR-AD)

Address output hold time (WR standard)(3)

(note 1)

td(BCLK-CS)

Chip-select signal output delay time

th(BCLK-CS)

Chip-select signal output hold time (BCLK standard)

-3

th(RD-CS)

Chip-select signal output hold time (RD standard)(3)

th(WR-CS)

Chip-select signal output hold time (WR standard)(3)

(note 1)

td(BCLK-RD)

RD signal output delay time

th(BCLK-RD)

RD signal output hold time

-5

td(BCLK-WR)

WR signal output delay time

th(BCLK-WR)

WR signal output hold time

-5

td(DB-WR)

Data output delay time (WR standard)

(note 2)

th(WR-DB)

Data output hold time (WR standard)(3)

(note 1)

tw(WR)

WR output width

(note 2)

109

f(BCLK) × 2

- 10 [ns]

th(WR-DB) =

109

f(BCLK) × 2

- 10 [ns]

th(WR-AD) =

109

f(BCLK) × 2

- 10 [ns]

th(WR-CS) =

109 × n

f(BCLK) × 2

- 15 [ns] (if external bus cycle is a

φ + bφ, n = (b × 2) - 1)

tw(WR)

109 × m

f(BCLK)

- 20 [ns] (if external bus cycle is a

φ + bφ, m = b)

td(DB-WR)

VCC1 = VCC2 = 5V

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