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AT89LP51 データシート(PDF) 7 Page - ATMEL Corporation

部品番号 AT89LP51
部品情報  8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
PDF  113 Pages
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メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP51 データシート(HTML) 7 Page - ATMEL Corporation

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3709C–MICRO–5/11
AT89LP51/52 - Preliminary
2.1
Block Diagram
Figure 2-1.
AT89LP51/52 Block Diagram
2.2
System Configuration
The AT89LP51/52 supports several system configuration options. Nonvolatile options are set
through user fuses that must be programmed through the flash programming interface. Volatile
options are controlled by software through individual bits of special function registers (SFRs).
The AT89LP51/52 must be properly configured before correct operation can occur.
2.2.1
Fuse Options
Table 2-1 lists the fusable options for the AT89LP51/52. These options maintain their state even
when the device is powered off, but can only be changed with an external device programmer.
For more information, see Section 17.7 “User Configuration Fuses” on page 86.
4K/8K Bytes
Flash Code
UART
16-bit Timer 0
16-bit Timer 1
Watchdog
Timer
Configurable
Oscillator
Crystal or
Resonator
256 Bytes
Flash Data
16-bit Timer 2
256 Bytes
RAM
XRAM
Interface
8051 Single Cycle CPU
with 12-cycle Compatibility
POR
BOD
Port 0
Configurable I/O
Port 1
Configurable I/O
Port 2
Configurable I/O
Port 3
Configurable I/O
Port 4
Configurable I/O
RC Auxiliary
Oscillator



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