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參數(shù)資料
型號: DS89C440-QNL
廠商: Maxim Integrated Products
文件頁數(shù): 43/46頁
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
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 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 Ultra-High-Speed Flash Microcontrollers
6 of 46
AC CHARACTERISTICS (continued)
(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
Port 0 Address to Valid Data
In (Note 16)
tAVDV0
3tCLCL - 20
+ tSTC1
3tCLCL - 20
+ tSTC1
ns
Port 2 Address to Valid Data
In (Note 16)
tAVDV2
tCLCL - 20
+ tSTC1
1.5tCLCL -
20 + tSTC1
3.5tCLCL -
20 + tSTC1
3.0tCLCL - 20
+ tSTC1
3.5tCLCL -
20 + tSTC1
ns
ALE Low to RD or WR Low
(Note 16)
tLLRL
(tLLWL)
0.5tCLCL - 8 +
tSTC2
0.5tCLCL +
6 + tSTC2
2tCLCL - 8
+ tSTC2
2tCLCL + 6
+ tSTC2
4tCLCL - 8
+ tSTC2
4tCLCL + 6 +
tSTC2
0.5tCLCL - 8
+ tSTC2
0.5tCLCL + 4
+ tSTC2
0.5tCLCL - 8
+ tSTC2
0.5tCLCL + 5
+ tSTC2
ns
Port 0 Address Valid to RD or
WR
Low (Note 16)
tAVRL0
(tAVWL0)
1.5tCLCL - 5
+ tSTC2
tCLCL - 5 +
tSTC2
ns
Port 2 Address Valid to RD or
WR
Low (Note 16)
tAVRL2
(tAVWL2)
0 + tSTC5 - 5
0.5tCLCL - 5
+ tSTC5
1.5tCLCL - 5
+ tSTC5
tCLCL - 5 +
tSTC5
1.5tCLCL - 5
+ tSTC5
ns
Data Out Valid to WR
Transition (Note 15)
tQVWX
-5
ns
Data Hold After WR
(Note 15)
tWHQX
tCLCL + tSTC2
- 10
tCLCL + tSTC2
- 10
tCLCL + tSTC2
- 10
tCLCL + tSTC2
- 10
tCLCL + tSTC2
- 10
ns
RD
or WR High to ALE High
(Note 15)
tRHLH
(tWHLH)
tSTC2 - 2
tSTC2 + 4
tSTC2 - 2
tSTC2 + 4
tSTC2 - 2
tSTC2 + 4
tSTC2 - 2
tSTC2 + 4
tSTC2 - 2
tSTC2 + 4
ns
Note: Specifications to -40°C are guaranteed by design and are not production tested. AC electrical characteristics assume 50% duty cycle for the oscillator and are not 100% tested, but are
guaranteed by design.
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