AT89C51IC2-RLRIL Atmel, AT89C51IC2-RLRIL Datasheet - Page 19
![IC MCU FLASH 8051 32K 3V 44-VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
AT89C51IC2-RLRIL
Manufacturer Part Number
AT89C51IC2-RLRIL
Description
IC MCU FLASH 8051 32K 3V 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51IC2-SLRIM.pdf
(147 pages)
Specifications of AT89C51IC2-RLRIL
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C51IC2RLRILTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 19 of 147
- Download datasheet (2Mb)
Design Considerations
Oscillators Control
Prescaler Divider
4301D–8051–02/08
Table 18. Overview (Continued)
•
•
•
•
•
•
•
PCON.1 PCON.0
0
0
1
PwdOscA and PwdOscB signals are generated in the Clock generator and used to
control the hard blocks of oscillators A and B.
PwdOscA =’1’ stops OscA
PwdOscB =’1’ stops OscB
The following tables summarize the Operating modes:
A hardware RESET puts the prescaler divider in the following state:
–
CKS signal selects OSCA or OSCB: F
Any value between FFh down to 00h can be written by software into CKRL register
in order to divide frequency of the selected oscillator:
–
–
PCON.1
PCON.1
CKRL = FFh: F
CKRL = 00h: minimum frequency
F
F
CKRL = FFh: maximum frequency
F
F
CLK CPU
CLK CPU
CLK CPU
CLK CPU
0
1
0
0
1
0
X
1
1
= F
= F
= F
= F
OscBEn OscAEn
CLK PERIPH
CLK PERIPH
CLK PERIPH
CLK PERIPH
X
X
1
CLK CPU
OscAEn
OscBEn
X
1
1
= F
= F
= F
= F
= F
X
X
1
0
1
0
OSCA
OSCA
OSCA
OSCA
CLK PERIPH
CKS
/1020 (Standard Mode)
/510 (X2 Mode)
1
0
X
/2 (Standard Mode)
(X2 Mode)
CLK OUT
IDLE MODE A
IDLE MODE B
POWER DOWN
MODE
Selected Mode
= F
OSCA
= F
PwdOscA
PwdOscB
/2 (Standard C51 feature)
OSCA
0
1
1
0
1
1
or F
The CPU is off, OscA supplies the
peripherals, OscB can be disabled
(OscBEn = 0)
The CPU is off, OscB supplies the
peripherals, OscA can be disabled
(OscAEn = 0)
The CPU and peripherals are off,
OscA and OscB are stopped
OSCB
Comment
Power-down mode
Power-down mode
OscA stopped by
OscA stopped by
OscB stopped by
OscB stopped by
clearing OscAEn
clearing OscBEn
OscA running
OscB running
Comments
Comments
19
Related parts for AT89C51IC2-RLRIL
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AT89C51IC2](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![AT89C51IC2-RLRUL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLRUM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLRUM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLRUL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTIM](/images/no-image3.png)
Part Number:
Description:
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![AT89C51IC2-SLRIM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 5V 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTIL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLRIM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 5V 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLRIL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 3V 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTUM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTUL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSUL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSUM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSIL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet: