AT89C5131-S3SIL Atmel, AT89C5131-S3SIL Datasheet - Page 38
![IC 8051 MCU FLASH 32K USB 52PLCC](/photos/12/13/121324/453-52-plcc_sml.jpg)
AT89C5131-S3SIL
Manufacturer Part Number
AT89C5131-S3SIL
Description
IC 8051 MCU FLASH 32K USB 52PLCC
Manufacturer
Atmel
Series
AT89C513xr
Datasheet
1.AT89C5131-S3SIL.pdf
(176 pages)
Specifications of AT89C5131-S3SIL
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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38
AT89C5131
Table 39. Software Registers
After programming the part by ISP, the BSB must be cleared (00h) in order to allow the
application to boot at 0000h.
The content of the Software Security Byte (SSB) is described in Table 40
To assure code protection from a parallel access, the HSB must also be at the required
level.
Table 40. Software Security Byte (SSB)
SBV
HSB
BSB
SSB
–
–
–
–
–
–
Number
Mnemonic
Bit
1-0
7
6
5
4
3
2
7
-
Mnemonic
LB1-0
Bit
6
-
Description
Software Boot Vector
Copy of the Hardware
Security Byte
Boot Status Byte
Software Security Byte
Copy of the Manufacturer
Code
Copy of the Device ID #1:
Family Code
Copy of the Device ID #2:
Memories
Size and Type
Copy of the Device ID #3:
Name
Revision
-
-
-
-
-
-
Description
Reserved
Do not clear this bit.
Reserved
Do not clear this bit.
Reserved
Do not clear this bit.
Reserved
Do not clear this bit.
Reserved
Do not clear this bit.
Reserved
Do not clear this bit.
User Memory Lock Bits
See Table 41
5
-
4
-
Default value
FCh
1011 1000b
0FFh
FFh
58h
D7h
F7h
FBh
EFh
FFh
3
-
2
-
–
–
–
–
Atmel
C51 X2, Electrically
Erasable
AT89C5131 32 Kbyte
AT89C5131 16 Kbyte
AT89C5131 32 Kbyte,
revision 0
AT89C5131 16 Kbyte,
revision 0
LB1
1
and
4136B–USB–09/03
Table 41.
LB0
0
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