AT89C5131A-S3SUL Atmel, AT89C5131A-S3SUL Datasheet - Page 46
AT89C5131A-S3SUL
Manufacturer Part Number
AT89C5131A-S3SUL
Description
MCU 8051 32K FLASH USB 52-PLCC
Manufacturer
Atmel
Series
AT89C513xr
Specifications of AT89C5131A-S3SUL
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
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
2-Wire, EUART, SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
34
Number Of Timers
3 bit
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89STK-05
Minimum Operating Temperature
- 40 C
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Low Pin Count Hardware
Conditions (SOIC28)
46
AT89C5131A-L
As PSEN is an output port in normal operating mode (running user application or boot-
loader code) after reset, it is recommended to release PSEN after rising edge of reset
signal.
Low pin count products do not have PSEN signal, thus for these products, the boot-
loader is always executed after reset thanks to the BLJB bit. The Hardware Conditions
are detected at the begining of the bootloader execution from reset.
The default factory Hardware Condition is assigned to port P1.
•
In order to offer the best flexibility, the user can define its own Hardware Condition on
one of the following Ports:
•
•
•
The Hardware Conditions configuration is stored in three bytes called P1_CF, P3_CF,
P4_CF.
These bytes can be modified by the user through a set of API or through an ISP
command.
Note:
See a detailed description in the applicable Document.
P1 must be equal to FEh
Port1
Port3
Port4 (only bit0 and bit1)
–
1. The BLJB must be at 0 (programmed) to be able to restart the bootloader.
2. BLJB can always be changed by the means of API, whether it's a low or high pin
Datasheet Bootloader USB AT89C5131.
count package.But for a low pin count version, if BLJB=1, no ISP via the Bootloader
is further possible (because the HW conditions are never evaluated, as described in
the USB Bootloader Datasheet). To go back to ISP, BLJB needs to be changed by a
parallel programmer(or by the APIs).
4338F–USB–08/07
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