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參數資料
| 型號： | W78C58 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT EMULATION MICROCONTROLLER |
| 中文描述： | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數： | 14/22頁 |
| 文件大小： | 304K |
| 代理商： | W78C58 |
W78C58
- 14 -
AC CHARACTERISTICS
The AC specifications are a function of the particular process used to manufacture the part, the
ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the
specifications can be expressed in terms of multiple input clock periods (T
CP
), and actual parts will
usually experience less than a
±
20 nS variation. The numbers below represent the performance
expected from a 0.8 micron CMOS process when using 2 and 4 mA output buffers.
Clock Input Waveform
T
T
XTAL1
F
CH
CL
OP,
T
CP
PARAMETER
Operating Speed
Clock Period
Clock High
Clock Low
SYMBOL
F
OP
T
CP
T
CH
T
CL
MIN.
0
25
10
10
TYP.
-
-
-
-
MAX.
40
-
-
-
UNIT
MHz
nS
nS
nS
NOTES
1
2
3
3
Notes:
1. The clock may be stopped indefinitely in either state.
2. The T
CP
specification is used as a reference in other specifications.
3. There are no duty cycle requirements on the XTAL1 input.
Program Fetch Cycle
External Program Memory Fetch Cycle
(see Figure 6)
PARAMETER
SYMBOL
T
AAS
T
AAH
T
APL
MIN.
1T
CP
-
1T
CP
-
1T
CP
-
TYP.
-
-
1T
CP
MAX.
-
-
UINT
nS
nS
nS
NOTES
Address Valid to ALE Low
Address Hold After ALE Low
1
ALE Low to PSEN Low
1T
CP
+
PSEN Low to Data Valid
T
PDA
-
-
2T
CP
nS
2
Data Hold After PSEN High
T
PDH
0
-
1T
CP
nS
3
Data Float After PSEN High
T
PDZ
0
-
1T
CP
nS
ALE Pulse Width
T
ALW
T
PSW
2T
CP
-
3T
CP
-
2T
CP
3T
CP
2T
CP
+
3T
CP
+
nS
nS
4
4
PSEN Pulse Width
相關PDF資料 |
PDF描述 |
|---|---|
| W78C58-16 | 8-BIT MICROCONTROLLER |
| W78C58-24 | 8-BIT MICROCONTROLLER |
| W78C58-40 | 8-BIT MICROCONTROLLER |
| W78C58M-16 | 8-BIT MICROCONTROLLER |
| W78C58M-24 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78C58-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C58-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C58-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C58-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C58F-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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