參數(shù)資料
型號(hào): GMS90L320
英文描述: 8-Bit Single-Chip Microcontrollers(低電壓,8位單片微控制器)
中文描述: 8位單芯片微控制器(低電壓,8位單片微控制器)
文件頁數(shù): 29/46頁
文件大小: 683K
代理商: GMS90L320
GMS90C320
OCT. 2000 Ver 1.2
25
AC Characteristics
Explanation of the AC Symbols
Each timing symbol has 5 characters. The first character is always a ‘t’ (stand 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.
A: Address
C: Clock
D: Input Data
H: Logic level HIGH
I: Instruction (program memory contents)
L: Logic level LOW, or ALE
P: PSEN
Q: Output Data
R: RD signal
T: Time
V: Valid
W: WR signal
X: No longer a valid logic level
Z: Float
For example,
t
AVLL
= Time from Address Valid to ALE Low
t
LLPL
= Time from ALE Low to PSEN Low
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