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T89C51RD2-RDTIM 数据表(PDF) 92 Page - ATMEL Corporation

部件名 T89C51RD2-RDTIM
功能描述  0 to 40 MHz Flash Programmable 8-bit Microcontroller
PDF  104 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

T89C51RD2-RDTIM 数据表(HTML) 92 Page - ATMEL Corporation

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92
T89C51RD2
4243G–8051–05/03
Flash EEPROM Programming
and Verification Waveforms
External Clock Drive
Characteristics (XTAL1)
External Clock Drive
Waveforms
AC Testing Input/Output
Waveforms
T
EHAZ
ALE/PROG
T
AVGL
T
DVGL
P0
P1.0-P1.7
P2.0-P2.4
P3.4-P3.5
CONTROL
SIGNALS
(ENABLE)
ADDRESS
DATA IN
T
GHAX
T
GHDX
T
GLGH
ADDRESS
DATA OUT
T
AVQV
TELQV
T
EHQZ
PROGRAMMING
VERIFICATION
Table 54. AC Parameters
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
5ns
T
CHCL
Fall Time
5ns
T
CHCX/TCLCX
Cyclic ratio in X2 mode
40
60
%
V
CC-0.5V
0.45V
0.7VCC
0.2V
CC-0.1
TCHCL
T
CLCX
T
CLCL
TCLCH
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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