AT89LP51 Atmel Corporation, AT89LP51 Datasheet - Page 91
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AT89LP51
Manufacturer Part Number
AT89LP51
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT89LP51.pdf
(117 pages)
Specifications of AT89LP51
Flash (kbytes)
4 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-1C
Max I/o Pins
36
Uart
1
Sram (kbytes)
0.25
Eeprom (bytes)
256
Self Program Memory
IAP
Operating Voltage (vcc)
2.4 to 5.5
Timers
3
Isp
SPI
Watchdog
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP51-20JU
Manufacturer:
Atmel
Quantity:
44
Company:
Part Number:
AT89LP51-20PU
Manufacturer:
TI
Quantity:
183
Company:
Part Number:
AT89LP51RD2-20AAU
Manufacturer:
INFINEON
Quantity:
450
17.9.6
3709D–MICRO–12/11
Timing Parameters
The timing parameters for
and
Table 17-6.
Note:
Figure 17-15
Symbol
t
t
PWRDN
PWRUP
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SHSL
SLSH
t
t
CLCL
t
t
t
t
t
AWR
POR
RHZ
SCK
t
t
SOH
SOV
POH
POV
SOE
SOX
POE
POX
SSE
SSD
ERS
RLZ
STL
ZSS
SSZ
SIH
PIH
WR
SIS
PIS
SR
SF
1. t
SCK
Programming Interface Timing Parameters
is independent of t
System Clock Cycle Time
Power On to SS High Time
Power-on Reset Time
SS Tristate to Power Off
RST Low to I/O Tristate
RST Low Settling Time
RST High to SS Tristate
Serial Clock Cycle Time
Clock High Time
Clock Low Time
Rise Time
Fall Time
Serial Input Setup Time
Serial Input Hold Time
Serial Output Hold Time
Serial Output Valid Time
Parallel Input Setup Time
Parallel Input Hold Time
Parallel Output Hold Time
Parallel Output Valid Time
Serial Output Enable Time
Serial Output Disable Time
Parallel Output Enable Time
Parallel Output Disable Time
RST Active Lead Time
RST Inactive Lag Time
SCK Setup to SS Low
SCK Hold after SS High
Write Cycle Time
Write Cycle with Auto-Erase Time
Chip Erase Cycle Time
are shown in
Parameter
Figure
Table
CLCL
17-9,
.
.
Figure
17-10,
Figure
200
t
t
t
Min
100
CLCL
SLSH
SLSH
2.5
7.5
10
75
50
10
10
10
10
25
25
0
0
5
(1)
17-11,
Figure
AT89LP51/52
2 t
2 t
Max
100
60
25
25
10
35
10
35
10
25
10
25
CLCL
CLCL
1
17-12,
Figure 17-14
Units
ms
ms
ms
ns
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
91