參數(shù)資料
型號: T89C51RD2-DDVCM
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, UUC
封裝: DIE
文件頁數(shù): 92/104頁
文件大?。?/td> 798K
代理商: T89C51RD2-DDVCM
92
T89C51RD2
4243G
8051
05/03
Flash EEPROM Programming
and Verification Waveforms
External Clock Drive
Characteristics (XTAL1)
Table 54.
AC Parameters
External Clock Drive
Waveforms
AC Testing Input/Output
Waveforms
T
EHAZ
ALE/PROG
AVGL
T
DVGL
P0
P1.0-P1.7
P2.0-P2.4
P3.4-P3.5
CONTROL
SIGNALS
(ENABLE)
ADDRESS
DATA IN
GHAX
T
GHDX
T
GLGH
ADDRESS
DATA OUT
T
AVQV
T
ELQV
T
EHQZ
PROGRAMMING
VERIFICATION
Symbol
Parameter
Min
Max
Units
T
CLCL
Oscillator Period
25
ns
T
CHCX
High Time
5
ns
T
CLCX
Low Time
5
ns
T
CLCH
Rise Time
5
ns
T
CHCL
Fall Time
5
ns
T
CHCX
/T
CLCX
Cyclic ratio in X2 mode
40
60
%
V
CC
-0.5V
0.45V
0.7V
CC
0.2V
CC
-0.1
T
CHCL
T
CLCX
T
CLCL
T
CLCH
T
CHCX
INPUT/OUTPUT
0.2 V
CC
+ 0.9
0.2 V
CC
- 0.1
V
CC
-0.5 V
0.45 V
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