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參數(shù)資料
| 型號： | MJ-80C32E-30 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Rad. Tolerant 8-bit ROMless Microcontroller |
| 中文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, QCC44 |
| 封裝： | QFP-44 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 298K |
| 代理商： | MJ-80C32E-30 |
12
80C32E
4149M–AERO–06/04
AC Parameters
Each timing symbol has 5 characters. The first character is always a “T” (stands for
time). The other characters, depending on their positions, stand for the name of a signal
or the logical status of that signal. The following is a list of all the characters and what
they stand for.
Example:
T
AVLL
= Time for Address Valid to ALE Low.
T
LLPL
= Time for ALE Low to PSEN Low.
T
A
= -55
°
C to +125
°
C (Military temperature range); V
SS
= 0V; V
CC
= 5V
±
10%;
Load capacitance for Port 0, ALE and PSEN = 100 pF; Load capacitance for all other
outputs = 80 pF.
Table 4.
External Program Memory Characteristics (ns)
Figure 7.
External Program Memory Read Cycle
Symbol
Parameter
30 MHz
Min
Max
T
LHLL
ALE Pulse Width
60
T
AVLL
Address Valid to ALE
15
T
LLAX
Address Hold After ALE
35
T
LLIV
ALE to Valid Instruction In
100
T
LLPL
ALE to PSEN
25
T
PLPH
PSEN Pulse Width
80
T
PLIV
PSEN to Valid Instruction In
65
T
PXIX
Input Instruction Hold After PSEN
0
T
PXIZ
Input Instruction Float After PSEN
30
T
PXAV
PSEN to Address Valid
35
T
AVIV
Address to Valid Instruction In
130
T
PLAZ
PSEN Low to Address Float
6
T
TPLAZ
ALE
PSEN
PORT 0
PORT 2
A0-A7
A0-A7
INSTR IN
INSTR IN
INSTR IN
ADDRESS
OR SFR-P2
ADDRESS A8-A15
ADDRESS A8-A15
12 T
CLCL
T
AVIV
T
LHLL
T
AVLL
T
LLIV
T
LLPL
T
PLPH
T
PXAV
T
PXIX
T
PXIZ
T
LLAX
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