AT89C51ED2-RLRUM Atmel, AT89C51ED2-RLRUM Datasheet - Page 41
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AT89C51ED2-RLRUM
Manufacturer Part Number
AT89C51ED2-RLRUM
Description
IC MCU FLASH 8051 64K 5V 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-RLRUM
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-TQFP, 44-VQFP
Core
8051
Processor Series
AT89x
Data Bus Width
8 bit
Maximum Clock Frequency
60 MHz
Data Ram Size
2 KB
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Mounting Style
SMD/SMT
Interface Type
UART, SPI
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
4235K–8051–05/08
Table 13-4.
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 13-5 & Table 13-6).
Table 13-5.
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
0
X
X
X
1
1
1
1
7 - 0
Bit
7
-
CAPPn
0
1
0
1
0
0
0
0
Mnemonic
PCA Module Modes (CCAPMn Registers)
CCAPnH Registers (n = 0 - 4)
Bit
6
-
-
CAPNn
0
0
1
1
0
0
0
0
Description
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
X
X
X
X
X
X
0
0
AT89C51RD2/ED2
Module Function
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.
16-bit High Speed Output
8-bit PWM
Watchdog Timer (module 4 only)
No Operation
2
-
1
-
0
-
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