AT89C51RE2-RLTUM Atmel, AT89C51RE2-RLTUM Datasheet - Page 115
AT89C51RE2-RLTUM
Manufacturer Part Number
AT89C51RE2-RLTUM
Description
MCU 8051 128K FLASH 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51RE2-SLSUM.pdf
(187 pages)
Specifications of AT89C51RE2-RLTUM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
8 KB
Interface Type
UART, SPI
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
34
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89OCD-01
Minimum Operating Temperature
- 40 C
Height
1.45 mm
Length
10.1 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Width
10.1 mm
For Use With
AT89STK-11 - KIT STARTER FOR AT89C51RX2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C51RE2-RLTUM
Manufacturer:
MSC
Quantity:
1 560
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7663E–8051–10/08
Table 85. IPL1 Register
IPL1 - Interrupt Priority Register (B2h)
Reset Value = XXXX 00X0b
Bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
PSL_1
KBDL
TWIL
SPIL
Bit
6
-
-
-
-
-
Description
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.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Serial port 1 Priority bit
Refer to PSH_1 for priority level.
SPI interrupt Priority bit
Refer to SPIH for priority level.
TWI interrupt Priority bit
Refer to TWIH for priority level.
Keyboard interrupt Priority bit
Refer to KBDH for priority level.
5
-
4
-
PSL_1
3
SPIL
2
AT89C51RE2
TWIL
1
KBDL
0
115
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