AT89C5131A-TIRUL Atmel, AT89C5131A-TIRUL Datasheet - Page 82
![MCU 8051 32K FLASH USB 28-SOIC](/photos/6/82/68295/453-28-soic_sml.jpg)
AT89C5131A-TIRUL
Manufacturer Part Number
AT89C5131A-TIRUL
Description
MCU 8051 32K FLASH USB 28-SOIC
Manufacturer
Atmel
Series
AT89C513xr
Specifications of AT89C5131A-TIRUL
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
18
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
28-SOIC (7.5mm Width)
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89STK-05
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
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AT89C5131A-L
Table 65. IPL1 Register
IPL1 - Interrupt Priority Register (B2h)
Reset Value = X0XX X000b
Not bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
PUSBL
PUSBL
PTWIL
PSPIL
PKBL
Bit
6
-
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
USB Interrupt Priority bit
Refer to PUSBH for priority level.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
SPI Interrupt Priority bit
Refer to PSPIH for priority level.
TWI Interrupt Priority bit
Refer to PTWIH for priority level.
Keyboard Interrupt Priority bit
Refer to PKBH for priority level.
5
-
4
-
3
-
PSPIL
2
PTWIL
1
4338F–USB–08/07
PKBDL
0
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