AT89LP2052-16PI Atmel, AT89LP2052-16PI Datasheet - Page 75
AT89LP2052-16PI
Manufacturer Part Number
AT89LP2052-16PI
Description
IC 8051 MCU FLASH 2K 20DIP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP2052-20PU.pdf
(94 pages)
Specifications of AT89LP2052-16PI
Core Processor
8051
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89LP2052-20PI
AT89LP2052-20PI
AT89LP2052-20PI
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23.5.2
23.5.3
3547J–MICRO–10/09
Power-down Sequence
ISP Start Sequence
Execute this sequence to power-down the device after serial programming.
Figure 23-23. Serial Programming Power-down Sequence
Note:
Execute this sequence to enter ISP when the device is already operational.
Figure 23-24. In-System Programming (ISP) Start Sequence
1. Tri-state MOSI (P1.5).
2. Bring SCK (P1.7) to “L”.
3. Bring RST to “L”.
4. Bring SS (P1.4) to “L”
5. Power off Vcc.
1. Bring SS (P1.4) to “H”.
2. Tri-state MISO (P1.6).
3. Bring RST to “H”.
4. Bring SCK (P1.7) to “L”.
The waveforms on this page are not to scale.
XTAL1
MISO
MOSI
MISO
MOSI
SCK
RST
RST
SCK
V
V
SS
SS
CC
CC
HIGH Z
AT89LP2052/LP4052
HIGH Z
HIGH Z
HIGH Z
75
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