(VCC = 4.5V to 5.5V, T
參數(shù)資料
型號(hào): DS89C440-QNL
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 34/46頁(yè)
文件大?。?/td> 0K
描述: IC MCU FLASH 32KB 33MHZ 44-PLCC
標(biāo)準(zhǔn)包裝: 26
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,SIO,UART/USART
外圍設(shè)備: 電源故障復(fù)位,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
DS89C430/DS89C450
4 of 46
AC CHARACTERISTICS
(VCC = 4.5V to 5.5V, TO = -40°C to +85°C.) (See Figure 1, Figure 2, and Figure 3.)
1-CYCLE
PAGE MODE 1
2-CYCLE
PAGE MODE 1
4-CYCLE
PAGE MODE 1
PAGE MODE 2
NONPAGE MODE
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
System Clock External
Oscillator (Note 15)
1/tCLCL
0
33
0
33
0
33
0
33
0
33
System Clock External Crystal
(Note 15)
1/tCLCL
1
33
1
33
1
33
1
33
1
33
MHz
ALE Pulse Width (Note 16)
tLHLL
0.5tCLCL - 2
+ tSTC3
tCLCL - 2
+ tSTC3
2tCLCL - 4
+ tSTC3
1.5tCLCL - 5
+ tSTC3
1.5tCLCL - 5
+ tSTC3
ns
Port 0 Instruction Address Valid
to ALE Low
tAVLL
tCLCL - 3
0.5tCLCL - 3
ns
Port 2 Instruction Address Valid
to ALE Low
tAVLL2
0.5tCLCL - 4
1.5tCLCL - 4
0.5tCLCL - 4
tCLCL - 4
ns
Port 0 Data AddressValid to
ALE Low
tAVLL3
tCLCL - 3 +
tSTC3
0.5tCLCL - 3
+ tSTC3
ns
Program Address Hold After
ALE Low
tLLAX
0.5tCLCL - 8
1.5tCLCL - 8
2.5tCLCL - 8
1tCLCL - 10
ns
Address Hold after ALE Low
MOVX Write
tLLAX2
0.5tCLCL - 8
+ tSTC4
1.5tCLCL - 8
+ tSTC4
2.5tCLCL - 8
+ tSTC3
0.5tCLCL - 8
+ tSTC2
0.5tCLCL - 8
+ tSTC2
ns
Address Hold after ALE Low
MOVX Read
tLLAX3
0.5tCLCL - 8
+ tSTC4
1.5tCLCL - 8
+ tSTC4
2.5tCLCL - 8
+ tSTC3
0.5tCLCL - 8
+ tSTC3
0.5tCLCL - 8
+ tSTC2
ns
ALE Low to Valid Instruction In
tLLIV
2tCLCL - 6
ns
ALE Low to PSEN Low
tLLPL
1.5tCLCL - 6
0.5tCLCL - 2
ns
PSEN
Pulse Width for Program
Fetch
tPLPH
tCLCL - 5
2tCLCL - 5
tCLCL - 5
2tCLCL - 5
ns
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