at89lp214-20xi ATMEL Corporation, at89lp214-20xi Datasheet - Page 80
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at89lp214-20xi
Manufacturer Part Number
at89lp214-20xi
Description
At89lp213 8-bit Microcontroller With 2k Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89LP214-20XI.pdf
(89 pages)
- Current page: 80 of 89
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24.5
The values in this table are valid for V
Figure 24-6. Shift Register Mode Timing Waveform
24.6
24.6.1
Note:
24.6.2
Note:
80
Symbol
t
t
t
t
t
XLXL
QVXH
XHQX
XHDX
XHDV
Serial Port Timing: Shift Register Mode Test Conditions
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
AT89LP213/214
AC Testing Input/Output Waveform
Float Waveform
OUTPUT DATA
V
float when 100 mV change from the loaded V
INPUT DATA
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
CLOCK
(1)
VALID
0
IL
CC
max. for a logic “0”.
= 2.4V to 5.5V and Load Capacitance = 80 pF.
VALID
1
CC
(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.
VALID
3
VALID
4
2t
t
t
VALID
CLCL
CLCL
CLCL
Min
5
15
Variable Oscillator
0
-15
-15
-15
VALID
6
Max
VALID
3538B–MICRO–11/07
7
Units
µs
ns
ns
ns
ns
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