AT89C51ED2-SMRUM Atmel, AT89C51ED2-SMRUM Datasheet - Page 79
AT89C51ED2-SMRUM
Manufacturer Part Number
AT89C51ED2-SMRUM
Description
IC MCU FLASH 8051 64K 5V 68PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-SMRUM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
68-PLCC
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
UART, SPI
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
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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4235K–8051–05/08
Table 17-8.
IPH1 - Interrupt Priority High Register (B3h)
Reset Value = XXXX X000b
Not bit addressable
Number
Bit
7
7
6
5
4
3
2
1
0
-
Mnemonic
IPH1 Register
KBDH
SPIH
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.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
SPI interrupt Priority High bit
SPIHSPILPriority Level
0
0
1
1
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Keyboard interrupt Priority High bit
KB DHKBDLPriority Level
0
0
1
1
5
-
0 Lowest
1
0
1 Highest
0 Lowest
1
0
1 Highest
4
-
3
-
AT89C51RD2/ED2
SPIH
2
1
-
KBDH
0
79
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