AT89C51RB2-3CSUM Atmel, AT89C51RB2-3CSUM Datasheet - Page 34
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AT89C51RB2-3CSUM
Manufacturer Part Number
AT89C51RB2-3CSUM
Description
IC 8051 MCU 16K FLASH 40-DIP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51RB2-RLTIL.pdf
(127 pages)
Specifications of AT89C51RB2-3CSUM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1280 B
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
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
Package
40PDIP
Device Core
80C51
Family Name
AT89
Maximum Speed
60 MHz
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-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:
AT89C51RB2-3CSUM
Manufacturer:
ATMEL
Quantity:
6 480
Company:
Part Number:
AT89C51RB2-3CSUM
Manufacturer:
ATMEL
Quantity:
20
34
AT89C51RB2/RC2
Table 23. CCON Register
CCON – PCA Counter Control Register (D8h)
Reset Value = 000X 0000b
Bit addressable
The watchdog timer function is implemented in Module 4 (see Figure 14).
The PCA interrupt system is shown in Figure 12.
Number
CF
Bit
7
7
6
5
4
3
2
1
0
Mnemonic Description
CCF4
CCF3
CCF2
CCF1
CCF0
CR
Bit
CF
CR
6
-
PCA Counter Overflow Flag
Set by hardware when the counter rolls over. CF flags an interrupt if bit ECF in
CMOD is set. CF may be set by either hardware or software but can only be
cleared by software.
PCA Counter Run Control Bit
Must be cleared by software to turn the PCA counter off.
Set by software to turn the PCA counter on.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA Module 4 Interrupt Flag
Must be cleared by software.
Set by hardware when a match or capture occurs.
PCA Module 3 Interrupt Flag
Must be cleared by software.
Set by hardware when a match or capture occurs.
PCA Module 2 Interrupt Flag
Must be cleared by software.
Set by hardware when a match or capture occurs.
PCA Module 1 Interrupt Flag
Must be cleared by software.
Set by hardware when a match or capture occurs.
PCA Module 0 Interrupt Flag
Must be cleared by software.
Set by hardware when a match or capture occurs.
5
-
CCF4
4
CCF3
3
CCF2
2
CCF1
1
4180E–8051–10/06
CCF0
0