AT89C5132

Manufacturer Part NumberAT89C5132
ManufacturerAtmel Corporation
AT89C5132 datasheets
 


Specifications of AT89C5132

Flash (kbytes)64 KbytesMax. Operating Frequency20 MHz
Cpu8051-12CMax I/o Pins44
Usb Transceiver1Usb SpeedFull Speed
Usb InterfaceDeviceSpi1
Uart1Adc Channels2
Adc Resolution (bits)10Adc Speed (ksps)22.7
Sram (kbytes)2.25Self Program MemoryAPI
Operating Voltage (vcc)2.7 to 3.6Timers2
IspUART/USBWatchdogYes
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Active AT89C5132 Errata List
SPI Controller – Bad Transfer in Slave Mode with CPHA = 0
C51 Core – Bad Exit of Power-down in X2 Mode
AT89C5132 Errata History
Lot Number
A00960 and above
AT89C5132 Errata Description
1. SPI Controller
Bad Transfer in Slave Mode with CPHA = 0
SPI controller used in slave mode with CPHA = 0 leads to erratic data reception
and transmission.
Workaround
Use slave mode only with CPHA = 1.
2. C51 Core
Bad Exit of Power-down in X2 Mode
When exiting Power-down mode by interrupt while CPU is in X2 mode, it leads to
bad execution of first instruction executed when CPU restarts.
Workaround
Put the CPU in X1 mode just before entering power-down mode.
Errata List
1, 2
USB
Microcontrollers
AT89C5132
Errata Sheet
Rev. 4253A–USB–08/03

AT89C5132 Summary of contents

  • Page 1

    ... Active AT89C5132 Errata List • SPI Controller – Bad Transfer in Slave Mode with CPHA = 0 • C51 Core – Bad Exit of Power-down in X2 Mode AT89C5132 Errata History Lot Number A00960 and above AT89C5132 Errata Description 1. SPI Controller Bad Transfer in Slave Mode with CPHA = 0 – ...

  • Page 2

    ... USB Bootloader Errata Description 1. Boot Process - Marginal SBV Value When Bootloader is called from user’s application with SBV = F0h, the bootloader is never executed and execution enters an infinite loop. Workaround Always set SBV value to FFh instead of F0h. AT89C5132 2 Errata List 1 None 4253A–USB–08/03 ...

  • Page 3

    ... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...