AT89C5132 Atmel Corporation, AT89C5132 Datasheet

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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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Company
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Manufacturer
Quantity
Price
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Atmel
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Active AT89C5132 Errata List
AT89C5132 Errata History
AT89C5132 Errata Description
1. SPI Controller
2. C51 Core
Lot Number
A00960 and above
SPI Controller – Bad Transfer in Slave Mode with CPHA = 0
C51 Core – Bad Exit of Power-down in X2 Mode
SPI controller used in slave mode with CPHA = 0 leads to erratic data reception
and transmission.
Workaround
Use slave mode only with CPHA = 1.
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.
Bad Exit of Power-down in X2 Mode
Bad Transfer in Slave Mode with CPHA = 0
Errata List
1, 2
USB
Microcontrollers
AT89C5132
Errata Sheet
Rev. 4253A–USB–08/03

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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 ...

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