AT89C51CC03C-7CTIM Atmel, AT89C51CC03C-7CTIM Datasheet - Page 7
![IC 8051 MCU FLASH 64K 64BGA](/photos/12/13/121327/453-64-bga_sml.jpg)
AT89C51CC03C-7CTIM
Manufacturer Part Number
AT89C51CC03C-7CTIM
Description
IC 8051 MCU FLASH 64K 64BGA
Manufacturer
Atmel
Series
AT89C CANr
Datasheets
1.AT89C51CC03C-S3RIM.pdf
(198 pages)
2.AT89C51CC03C-S3RIM.pdf
(32 pages)
3.AT89C51CC03C-S3RIM.pdf
(27 pages)
4.AT89C51CC03C-S3RIM.pdf
(184 pages)
Specifications of AT89C51CC03C-7CTIM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT89C51CC03C7CTIM
Available stocks
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Manufacturer
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- AT89C51CC03C-S3RIM PDF datasheet
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I/O Configurations
Port 1, Port 3 and Port 4
4182O–CAN–09/08
Pin Name
RESET
XTAL1
XTAL2
PSEN
ALE
EA
Type
I/O
O
O
O
I
I
Description
Reset:
A high level on this pin during two machine cycles while the oscillator is running resets the device. An internal pull-down
resistor to VSS permits power-on reset using only an external capacitor to VCC.
ALE:
An Address Latch Enable output for latching the low byte of the address during accesses to the external memory. The ALE is
activated every 1/6 oscillator periods (1/3 in X2 mode) except during an external data memory access. When instructions are
executed from an internal Flash (EA = 1), ALE generation can be disabled by the software.
PSEN:
The Program Store Enable output is a control signal that enables the external program memory of the bus during external
fetch operations. It is activated twice each machine cycle during fetches from the external program memory. However, when
executing from of the external program memory two activations of PSEN are skipped during each access to the external Data
memory. The PSEN is not activated for internal fetches.
EA:
When External Access is held at the high level, instructions are fetched from the internal Flash. When held at the low level,
AT89C51CC03 fetches all instructions from the external program memory
XTAL1:
Input of the inverting oscillator amplifier and input of the internal clock generator circuits.
To drive the device from an external clock source, XTAL1 should be driven, while XTAL2 is left unconnected. To operate
above a frequency of 16 MHz, a duty cycle of 50% should be maintained.
XTAL2:
Output from the inverting oscillator amplifier.
Each Port SFR operates via type-D latches, as illustrated in Figure 1 for Ports 3 and 4. A
CPU "write to latch" signal initiates transfer of internal bus data into the type-D latch. A
CPU "read latch" signal transfers the latched Q output onto the internal bus. Similarly, a
"read pin" signal transfers the logical level of the Port pin. Some Port data instructions
activate the "read latch" signal while others activate the "read pin" signal. Latch instruc-
tions are referred to as Read-Modify-Write instructions. Each I/O line may be
independently programmed as input or output.
Figure 1 shows the structure of Ports 1 and 3, which have internal pull-ups. An external
source can pull the pin low. Each Port pin can be configured either for general-purpose
I/O or for its alternate input output function.
To use a pin for general-purpose output, set or clear the corresponding bit in the Px reg-
ister (x = 1,3 or 4). To use a pin for general-purpose input, set the bit in the Px register.
This turns off the output FET drive.
To configure a pin for its alternate function, set the bit in the Px register. When the latch
is set, the "alternate output function" signal controls the output level (see Figure 1). The
operation of Ports 1, 3 and 4 is discussed further in the "quasi-Bidirectional Port Opera-
tion" section.
.
AT89C51CC03
7
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