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AT89C51ED2-RDTUM датащи(PDF) 123 Page - ATMEL Corporation

номер детали AT89C51ED2-RDTUM
подробное описание детали  8-bit Flash Microcontroller
PDF  137 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ED2-RDTUM датащи(HTML) 123 Page - ATMEL Corporation

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4235K–8051–05/08
AT89C51RD2/ED2
Table 25-9.
AC Parameters for a Variable Clock
25.3.8
Shift Register Timing Waveforms
25.3.9
External Clock Drive Waveforms
25.3.10
AC Testing Input/Output Waveforms
AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”. Timing
measurement are made at VIH min for a logic “1” and VIL max for a logic “0”.
Symbol
Type
Standard
Clock
X2 Clock
X Parameter For
-M Range
Units
TXLXL
Min
12 T
6 T
ns
TQVHX
Min
10 T - x
5 T - x
50
ns
TXHQX
Min
2 T - x
T - x
20
ns
TXHDX
Min
x
x
0
ns
TXHDV
Max
10 T - x
5 T- x
133
ns
INPUT DATA
VALID
VALID
VALID
VALID
0
1
2
3
4
5
6
8
7
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
CLEAR RI
TXLXL
TQVXH
T
XHQX
TXHDV
TXHDX
SET TI
SET RI
INSTRUCTION
0
1
2
3
4
5
6
7
VALID
VALID
VALID
VALID
V
CC-0.5V
0.45V
0.7VCC
0.2V
CC-0.1
TCHCL
T
CLCX
TCLCL
TCLCH
T
CHCX
INPUT/OUTPUT
0.2 VCC + 0.9
0.2 V
CC - 0.1
VCC -0.5V
0.45V



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