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參數(shù)資料
| 型號(hào)： | W78C54M-24 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, MROM, MICROCONTROLLER, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大小： | 304K |
| 代理商： | W78C54M-24 |
W78C54
- 14 -
Clock Input Waveform
T
T
XTAL1
F
CH
CL
OP,
T
CP
Continued
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 PSENLow
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
Notes:
1. P00-P07, P20-P27 remain stable through entire memory cycle.
2. Memory access time is 3 Tcp.
3. Data has been latched internally prior to /PSEN going high.
4.
is 20 ns (due to buffer driving delay and wire loading).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78C54F-40 | 8-BIT MICROCONTROLLER |
| W78C58F-16 | 8-BIT MICROCONTROLLER |
| W78C58F-24 | 8-BIT MICROCONTROLLER |
| W78C58P-16 | 8-BIT MICROCONTROLLER |
| W78C58P-24 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78C54M-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C54P-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C54P-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C54P-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C58 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT EMULATION MICROCONTROLLER |
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