at89lp2052-20xi ATMEL Corporation, at89lp2052-20xi Datasheet - Page 82
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at89lp2052-20xi
Manufacturer Part Number
at89lp2052-20xi
Description
At89lp2052 8-bit Microcontroller With 2/4-kbyte Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89LP2052-20XI.pdf
(93 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
AT89LP2052-20XI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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24.5
Table 24-4.
Note:
Figure 24-6. Shift Register Mode Timing Waveforms
24.6
24.6.1
Note:
24.6.2
Note:
82
Symbol
t
t
t
t
t
XLXL
QVXH
XHQX
XHDX
XHDV
Serial Port Timing: Shift Register Mode
1. The values in this table are valid for V
Test Conditions
1. AC Inputs during testing are driven at V
1. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to
WRITE TO SBUF
AT89LP2052/LP4052
OUTPUT DATA
AC Testing Input/Output Waveforms
Float Waveforms
INPUT DATA
V
float when 100 mV change from the loaded V
CLEAR RI
Parameter
Serial Port Clock Cycle Time
Output Data Setup to Clock Rising Edge
Output Data Hold after Clock Rising Edge
Input Data Hold after Clock Rising Edge
Input Data Valid to Clock Rising Edge
IH
min. for a logic “1” and V
Serial Port Shift Register Timing Parameters
CLOCK
(1)
VALID
0
IL
max. for a logic “0”.
VALID
CC
1
CC
= 2.4V to 5.5V and Load Capacitance = 80 pF.
(1)
- 0.5V for a logic “1” and 0.45V for a logic “0”. Timing measurements are made at
OH
VALID
/V
OL
2
level occurs.
(1)
VALID
3
VALID
4
2t
VALID
t
t
CLCL
CLCL
CLCL
Min
5
15
Variable Oscillator
0
-15
-15
-15
VALID
6
Max
VALID
7
3547H–MICRO–5/07
Units
µs
ns
ns
ns
ns
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