AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 11

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AT89C5132

Manufacturer Part Number
AT89C5132
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT89C5132

Flash (kbytes)
64 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-12C
Max I/o Pins
44
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Uart
1
Adc Channels
2
Adc Resolution (bits)
10
Adc Speed (ksps)
22.7
Sram (kbytes)
2.25
Self Program Memory
API
Operating Voltage (vcc)
2.7 to 3.6
Timers
2
Isp
UART/USB
Watchdog
Yes

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5. Address Spaces
5.0.1
5.0.2
5.0.3
4173ES–USB–09/07
Code Memory
Boot Memory
Data Memory
The AT8xC5132 derivatives implement four different address spaces:
The AT89C5132 implements 64K Bytes of on-chip program/code memory in Flash technology.
The Flash memory increases ROM functionality by enabling in-circuit electrical erasure and pro-
gramming. Thanks to the internal charge pump, the high voltage needed for programming or
erasing Flash cells is generated on-chip using the standard V
can be programmed using only one voltage and allows in application software programming
commonly known as IAP. Hardware programming mode is also available using specific pro-
gramming tools.
The AT89C5132 implements 4K Bytes of on-chip boot memory provided in Flash technology.
This boot memory is delivered programmed with a standard bootloader software allowing in sys-
tem programming commonly known as ISP. It also contains some Application Programming
Interfaces routines commonly known as API allowing user to develop his own bootloader.
The AT89C5132 derivatives implement 2304 bytes of on-chip data RAM. This memory is divided
in two separate areas:
Program/Code Memory
Boot Memory
Data Memory
Special Function Registers (SFRs)
256 bytes of on-chip RAM memory (standard C51 memory).
2048 bytes of on-chip expanded RAM memory (ERAM accessible via MOVX instructions).
DD
voltage. Thus, the AT89C5132
AT89C5132
11

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