參數(shù)資料
型號: MB90487BPF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封裝: 20 X 14 MM, 3.35 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 12/124頁
文件大小: 1547K
代理商: MB90487BPF
MB90480B/485B Series
109
(16) Chip Select Output Timing
(VCC
= 2.7 V to 3.6 V, VSS = 0.0 V, TA = 40 °C to +85 °C)
* : tCP is internal operating clock cycle time. Refer to “ (1) Clock Timing”.
Note : Due to the configuration of the internal bus, the chip select output signals are changed simultaneously and
therefore may cause the bus conflict conditions. AC cannot be warranted between the ALE output signal
and the chip select output signal.
Parameter
Symbol
Pin name
Conditions
Value
Unit
Min
Max
Chip select output valid time
→RD↓
tSVRL
CS0 to CS3,
RD
tCP*
/ 2 7
ns
Chip select output valid time
→WR↓
tSVWL
CS0 to CS3,
WRH, WRL
tCP*
/ 2 7
ns
RD
↑→chip select output valid time
tRHSV
RD,
CS0 to CS3
tCP*
/ 2 17
ns
WR
↑→chip select output valid time
tWHSV
WRH, WRL,
CS0 to CS3
tCP*
/ 2 17
ns
tSVRL
tSVWL
tWHSV
tRHSV
0.8 V
2.4 V
0.8 V
RD
A23 to A16
CS0 to CS3
D15 to D00
WRH, WRL
D15 to D00
Read data
Write data
Unde-
fined
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