AT89S8253-24PSC ATMEL [ATMEL Corporation], AT89S8253-24PSC Datasheet - Page 45
AT89S8253-24PSC
Manufacturer Part Number
AT89S8253-24PSC
Description
8-bit Microcontroller with 12K Bytes Flash and 2K Bytes EEPROM
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89S8253-24PSC.pdf
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27. Serial Downloading Waveforms (SPI Mode 1 −−> CPOL = 0, CPHA = 1)
28. Serial Programming Characteristics
Figure 28-1. Serial Programming Timing
Table 28-1.
3286L–MICRO–8/08
Symbol
1/t
t
t
t
t
t
t
t
t
CLCL
SHSL
SLSH
OVSL
SHOX
SHIV
ERASE
SWC
CLCL
MOSI
MISO
SCK
Parameter
Oscillator Frequency
Oscillator Period
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK Low
MOSI Hold after SCK Low
SCK High to MISO Valid
Chip Erase Instruction Cycle Time
Serial Page Write Cycle Time
Serial Programming Characteristics, T
SCK/P1.7
SERIAL DATA INPUT
MISO/P1.6
MOSI/P1.5
SERIAL DATA OUTPUT
Change
Outputs
t OVSL
MSB
MSB
7
Sample
Inputs
A
= -40⋅C to 85⋅C, V
6
t
SHOX
5
8 t
2 t
8 t
t
41.6
Min
CLCL
10
CLCL
CLCL
CLCL
3
4
3
CC
2
= 2.7V - 5.5V (Unless Otherwise Noted)
1
Typ
16
t
SLSH
LSB
LSB
0
t
SHIV
t
SHSL
Max
33.3
4.5
24
32
9
AT89S8253
Units
MHz
ms
ms
ns
ns
ns
ns
ns
ns
45
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