AT89C51RC2-RLTIM Atmel, AT89C51RC2-RLTIM Datasheet - Page 37
![IC 8051 MCU FLASH 32K 44VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
AT89C51RC2-RLTIM
Manufacturer Part Number
AT89C51RC2-RLTIM
Description
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51RB2-RLTIL.pdf
(127 pages)
Specifications of AT89C51RC2-RLTIM
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
32KB (32K 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
44-TQFP, 44-VQFP
For Use With
AT89STK-11 - KIT STARTER FOR AT89C51RX2
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
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4180E–8051–10/06
Table 25. PCA Module Modes (CCAPMn Registers)
There are two additional registers associated with each of the PCA Modules. They are
CCAPnH and CCAPnL and these are the registers that store the 16-bit count when a
capture occurs or a compare should occur. When a Module is used in the PWM mode
these registers are used to control the duty cycle of the output (see Table 26 and
Table 27).
Table 26. CCAPnH Registers (n = 0-4)
CCAP0H – PCA Module 0 Compare/Capture Control Register High (0FAh)
CCAP1H – PCA Module 1 Compare/Capture Control Register High (0FBh)
CCAP2H – PCA Module 2 Compare/Capture Control Register High (0FCh)
CCAP3H – PCA Module 3 Compare/Capture Control Register High (0FDh)
CCAP4H – PCA Module 4 Compare/Capture Control Register High (0FEh)
Reset Value = 0000 0000b
Not bit addressable
ECOMn
Number
X
X
X
0
1
1
1
1
7 - 0
Bit
7
-
CAPPn
0
1
0
1
0
0
0
0
Mnemonic Description
Bit
6
-
-
CAPNn
0
0
1
1
0
0
0
0
PCA Module n Compare/Capture Control
CCAPnH Value
MATn
5
-
0
0
0
0
1
1
0
1
TOGn
X
0
0
0
0
0
1
0
4
-
PWMm
0
0
0
0
0
0
1
0
3
-
ECCFn Module Function
AT89C51RB2/RC2
X
X
X
X
X
X
0
0
16-bit capture by a positive-edge
trigger on CEXn
16-bit capture by a negative trigger
on CEXn
16-bit capture by a transition on
CEXn
16-bit Software Timer/Compare
mode.
No Operation
16-bit High-speed Output
8-bit PWM
Watchdog Timer (Module 4 only)
2
-
1
-
0
-
37
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