參數(shù)資料
型號: M308B8SGP
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 32 MHz, MICROCONTROLLER, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 57/69頁
文件大小: 1119K
代理商: M308B8SGP
M32C/8B Group
5. Electrical Characteristics
REJ03B0242-0100 Rev.1.00 Nov 01, 2009
Page 60 of 67
Timing Requirements
(VCC1 = VCC2 = 3.0 to 3.6 V, VSS = 0 V, Topr = -20 to 85
°C unless otherwise specified)
Table 5.47
Memory Expansion Mode and Microprocessor Mode
NOTE:
1. Values, which depend on BCLK frequency and external bus cycles, can be obtained from the following
equations. Insert wait states or lower the operation frequency, f(BCLK), if the calculated value is negative.
Symbol
Parameter
Standard
Unit
Min.
Max.
tac1(RD-DB)
Data input access time (RD standard)
(note 1)
ns
tac1(AD-DB)
Data input access time (AD standard, CS standard)
(note 1)
ns
tac2(RD-DB)
Data input access time (RD standard, when accessing a space with the
multiplexed bus)
(note 1)
ns
tac2(AD-DB)
Data input access time (AD standard, when accessing a space with the
multiplexed bus)
(note 1)
ns
tsu(DB-BCLK)
Data input setup time
27
ns
tsu(RDY-BCLK)
RDY input setup time
30
ns
tsu(HOLD-BCLK) HOLD input setup time
40
ns
th(RD-DB)
Data input hold time
0
ns
th(BCLK-RDY)
RDY input hold time
0
ns
th(BCLK-HOLD)
HOLD input hold time
0
ns
td(BCLK-HLDA)
HLDA output delay time
25
ns
109 × m
f(BCLK) × 2
- 35 [ns] (if external bus cycle is a
φ + bφ, m = (b × 2) + 1)
tac1(RD-DB) =
109 × n
f(BCLK)
- 35 [ns] (if external bus cycle is a
φ + bφ, n = a + b)
tac1(AD-DB) =
109 × m
f(BCLK) × 2
- 35 [ns] (if external bus cycle is a
φ + bφ, m = (b × 2) - 1)
tac2(RD-DB) =
109 × p
f(BCLK) × 2
- 35 [ns] (if external bus cycle is a
φ + bφ, p = {(a + b - 1) × 2} + 1)
tac2(AD-DB) =
VCC1 = VCC2 = 3.3 V
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