參數(shù)資料
型號(hào): AT87C51RD2-SLSUM
廠商: International Rectifier
英文描述: High Performance 8-bit Microcontroller
中文描述: 高性能8位微控制器
文件頁(yè)數(shù): 62/85頁(yè)
文件大小: 762K
代理商: AT87C51RD2-SLSUM
62
4188E–8051–08/06
AT/TS8xC51Rx2
Figure 11-3.
I
CC
Test Condition, Idle Mode
Figure 11-4.
I
CC
Test Condition, Power-Down Mode
Figure 11-5.
Clock Signal Waveform for I
CC
Tests in Active and Idle Modes
11.5
AC Parameters
11.5.1
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 sta-
tus 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
= 0 to +70
°
C (commercial temperature range); V
SS
= 0 V; V
CC
= 5 V
±
10%; -M and -V ranges.
T
A
= -40
°
C to +85
°
C (industrial temperature range); V
SS
= 0 V; V
CC
= 5 V
±
10%; -M and -V
ranges.
RST
EA
XTAL2
XTAL1
V
SS
V
CC
V
CC
I
CC
(NC)
P0
V
CC
All other pins are disconnected.
CLOCK
SIGNAL
Reset = Vss after a high pulse
during at least 24 clock cycles
RST
EA
XTAL2
XTAL1
V
SS
V
CC
V
CC
I
CC
(NC)
P0
V
CC
All other pins are disconnected.
Reset = Vss after a high pulse
during at least 24 clock cycles
V
CC
-0.5V
0.45V
T
CHCL
0.7V
CC
0.2V
CC
-0.1
T
CLCH
T
CLCH
= T
CHCL
= 5ns.
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