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參數資料
| 型號： | TSC87C52-25IKB |
| 英文描述： | CMOS 0 to 33 MHz Programmable 8朾it Microcontroller |
| 中文描述： | 的CMOS 0至33 MHz的可編程微控制器8朾它 |
| 文件頁數： | 18/24頁 |
| 文件大小： | 273K |
| 代理商： | TSC87C52-25IKB |
TSC87C52
18
Rev. C – 10 Sept 1997
Preliminary
MATRA MHS
AC Parameters
Explanation of the AC Symbols
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:
TAVLL = Time for Address Valid to ALE Low.
TLLPL = Time for ALE Low to PSEN Low.
T
A
= 0 to +70 C; VSS = 0V VCC = 5V
±
10%; 0 to 12MHz
T
A
= –40
°
C to +85
°
C; VSS = 0V; VCC = 5V
±
10%; F = 0 to 12MHz.
(Load Capacitance for PORT 0, ALE and PSEN = 100pf; Load Capacitance for all other outputs = 80 pF.)
External Program Memory Characteristics
Symbol
Parameter
0 to 12MHz
Units
Min
Max
TLHLL
ALE pulse width
2TCLCL – 40
ns
TAVLL
Address Valid to ALE
TCLCL – 40
ns
TLLAX
Address Hold After ALE
TCLCL – 30
ns
TLLIV
ALE to Valid Instruction In
4TCLCL – 100
ns
TLLPL
ALE to PSEN
TCLCL – 30
ns
TPLPH
PSEN Pulse Width
3TCLCL – 45
ns
TPLIV
PSEN to Valid Instruction In
3TCLCL – 105
ns
TPXIX
Input Instruction Hold After PSEN
0
ns
TPXIZ
Input Instruction FloatAfter PSEN
TCLCL – 25
ns
TPXAV
PSEN to Address Valid
TCLCL – 8
ns
TAVIV
Address to Valid Instruction In
5TCLCL – 105
ns
TPXAV
PSEN Low to Address Float
10
ns
External Program Memory Read Cycle
TPLIV
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 TCLCL
TAVIV
TLHLL
TAVLL
TLLIV
TLLPL
TPLPH
TPXAV
TPXIX
TPXIZ
TLLAX
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