AT89C51ED2-SLSUM Atmel, AT89C51ED2-SLSUM Datasheet - Page 12
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AT89C51ED2-SLSUM
Manufacturer Part Number
AT89C51ED2-SLSUM
Description
IC 8051 MCU FLASH 64K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-SLSUM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
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
44-PLCC
Package
44PLCC
Device Core
8051
Family Name
89C
Maximum Speed
40 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
34
Interface Type
SPI/UART
Number Of Timers
3
Processor Series
AT89x
Core
8051
Data Ram Size
2 KB
Maximum Clock Frequency
40 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
Cpu Family
AT89
Device Core Size
8b
Frequency (max)
40MHz
Total Internal Ram Size
2KB
# I/os (max)
34
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
44
Package Type
PLCC
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C51ED2-SLSUM
Manufacturer:
MITSUBISHI
Quantity:
43
Part Number:
AT89C51ED2-SLSUM
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Table 4-1.
12
AT89C51RD2/ED2
XTALA1
XTALA2
P2.0 - P2.7
P3.0 - P3.7
P4.0 - P4.7
P5.0 - P5.7
RST
Mnemonic
Pin Description (Continued)
PLCC44 VQFP44
24 - 31
13 - 19
11,
21
20
11
13
14
15
16
17
18
19
10
9
-
-
18 - 25
7 - 13
15
14
10
12
13
11
5,
3
5
7
8
9
4
-
-
Pin Number
10, 13, 16
PLCC68
63, 7, 8,
54, 55,
56, 58,
59, 61,
34, 39,
40, 41,
42, 43,
20, 24,
26, 44,
46, 50,
60, 62,
64, 65
45, 47
53, 57
29
49
48
34
39
40
41
42
43
45
47
30
63, 1, 4, 7
VQFP64
43, 44,
45, 47,
48, 50,
25, 28,
29, 30,
31, 32,
49, 51,
52, 62,
11, 15,
53, 54
34, 36
17,33,
35,39,
42, 46
20
38
37
25
28
29
30
31
32
34
36
21
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
I
I
I
Name and Function
P1.7: Input/Output:
CEX4: Capture/Compare External I/O for PCA module 4
MOSI: SPI Master Output Slave Input line
When SPI is in master mode, MOSI outputs data to the slave peripheral.
When SPI is in slave mode, MOSI receives data from the master
controller.
XTALA 1: Input to the inverting oscillator amplifier and input to the
internal clock generator circuits.
XTALA 2: Output from the inverting oscillator amplifier
Port 2: Port 2 is an 8-bit bidirectional I/O port with internal pull-ups. Port 2
pins that have 1s written to them are pulled high by the internal pull-ups
and can be used as inputs. As inputs, Port 2 pins that are externally
pulled low will source current because of the internal pull-ups. Port 2
emits the high-order address byte during fetches from external program
memory and during accesses to external data memory that use 16-bit
addresses (MOVX @DPTR).In this application, it uses strong internal
pull-ups emitting 1s. During accesses to external data memory that use
8-bit addresses (MOVX @Ri), port 2 emits the contents of the P2 SFR.
Port 3: Port 3 is an 8-bit bidirectional I/O port with internal pull-ups. Port 3
pins that have 1s written to them are pulled high by the internal pull-ups
and can be used as inputs. As inputs, Port 3 pins that are externally
pulled low will source current because of the internal pull-ups. Port 3 also
serves the special features of the 80C51 family, as listed below.
RXD (P3.0): Serial input port
TXD (P3.1): Serial output port
INT0 (P3.2): External interrupt 0
INT1 (P3.3): External interrupt 1
T0 (P3.4): Timer 0 external input
T1 (P3.5): Timer 1 external input
WR (P3.6): External data memory write strobe
RD (P3.7): External data memory read strobe
Port 4: Port 4 is an 8-bit bidirectional I/O port with internal pull-ups. Port 3
pins that have 1s written to them are pulled high by the internal pull-ups
and can be used as inputs. As inputs, Port 3 pins that are externally
pulled low will source current because of the internal pull-ups.
Port 5: Port 5 is an 8-bit bidirectional I/O port with internal pull-ups. Port 3
pins that have 1s written to them are pulled high by the internal pull-ups
and can be used as inputs. As inputs, Port 3 pins that are externally
pulled low will source current because of the internal pull-ups.
Reset: A high on this pin for two machine cycles while the oscillator is
running, resets the device. An internal diffused resistor to V
power-on reset using only an external capacitor to V
output when the hardware watchdog forces a system reset.
CC
. This pin is an
4235K–8051–05/08
SS
permits a