AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 2

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

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

Functional
Description
In-System
Programming
Capability
In-Application
Programming or
Self- Programming
Capability
Block Diagram
2
AT89C5132
The AT89C5132 USB Bootloader facilitates In-System Programming (ISP) and In-Application
Programming.
In-System Programming allows the user to program or reprogram the microcontroller on-chip
Flash memory without removing it from the system and without the need of a pre-programmed
application.
The USB bootloader can manage a communication with a host through the USB bus. It can also
access and perform requested operations on the on-chip Flash memory.
IAP allows the reprogramming of the microcontroller on-chip Flash memory without removing it
from the system and while the embedded application is running.
The USB bootloader contains some Application Programming Interface routines named API rou-
tines allowing IAP by using the user’s firmware.
This section describes the different parts of the USB bootloader.
bootloader and IAP processes.
Figure 1. Bootloader Process Description
External host via the
Communication
USB Protocol
ISP Communication
Management
Flash Memory
Management
Flash
Memory
Management
User Call
Figure 1
IAP
shows the on-chip
Application
On-chip
4256B–USB–03/06
User