M32CSLASH8A datasheet(343/372 Pages) RENESAS

343 / 372 page

M32C/8A Group

23. Electrical Characteristics

Rev.1.00

Jul 15, 2007

Page 326 of 352

REJ09B0385-0100

Switching Characteristics

(VCC1 = VCC2 = 3.0 to 3.6 V, VSS = 0 V, Topr = -20 to 85

°C unless otherwise specified)

Table 23.48

Microprocessor Mode (when accessing external memory space with multiplexed bus)

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 equation.

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

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

5. 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)

th(RD-AD)

Address output hold time (RD standard)(5)

(note 1)

th(WR-AD)

Address output hold time (WR standard)(5)

(note 1)

td(BCLK-CS)

Chip-select signal output delay time

th(BCLK-CS)

Chip-select signal output hold time (BCLK standard)

th(RD-CS)

Chip-select signal output hold time (RD standard)(5)

(note 1)

th(WR-CS)

Chip-select signal output hold time (WR standard)(5)

(note 1)

td(BCLK-RD)

RD signal output delay time

th(BCLK-RD)

RD signal output hold time

-3

td(BCLK-WR)

WR signal output delay time

th(BCLK-WR)

WR signal output hold time

td(DB-WR)

Data output delay time (WR standard)

(note 2)

th(WR-DB)

Data output hold time (WR standard)(5)

(note 1)

td(BCLK-ALE)

ALE signal output delay time (BCLK standard)

th(BCLK-ALE)

ALE signal output hold time (BCLK standard)

-2

td(AD-ALE)

ALE signal output delay time (address standard)

(note 3)

th(ALE-AD)

ALE signal output hold time (address standard)

(note 4)

tdz(RD-AD)

Address output float start time

109

f(BCLK) × 2

- 10 [ns]

th(RD-AD)

109

f(BCLK) × 2

- 10 [ns]

th(WR-AD) =

109

f(BCLK) × 2

- 10 [ns]

th(RD-CS)

109

f(BCLK) × 2

- 10 [ns]

th(WR-CS) =

109

f(BCLK) × 2

- 20 [ns]

th(WR-DB) =

109 × m

f(BCLK) × 2

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

φ + bφ, m = (b × 2) - 1)

td(DB-WR) =

109 × n

f(BCLK) × 2

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

φ + bφ, n = a)

td(AD-ALE) =

109 × n

f(BCLK) × 2

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

φ + bφ, n = a)

th(ALE-AD) =

VCC1 = VCC2 = 3.3 V

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