AT89LP828-20MH Atmel, AT89LP828-20MH Datasheet - Page 48
AT89LP828-20MH
Manufacturer Part Number
AT89LP828-20MH
Description
MCU 8051 8K FLASH SPI 32VQFN
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP428-20AU.pdf
(149 pages)
Specifications of AT89LP828-20MH
Core Processor
8051
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
30
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP828-20MH
Manufacturer:
Atmel
Quantity:
720
- Current page: 48 of 149
- Download datasheet (5Mb)
11.5.1
11.5.2
48
AT89LP428/828
Mode 0 – 8-bit PWM with 8-bit Logarithmic Prescaler
Mode 1 – 8-bit PWM with 8-bit Linear Prescaler
In Mode 0, TLx acts as a logarithmic prescaler driving 8-bit counter THx (see
PSCx bits in TCONB control the prescaler value. On THx overflow, the duty cycle value in RHx
is transferred to OCRx and the output pin is set high. When the count in THx matches OCRx, the
output pin is cleared low. The following formulas give the output frequency and duty cycle for
Timer 0 in PWM mode 0. Timer 1 in PWM mode 0 is identical to Timer 0.
Figure 11-6. Timer/Counter 1 PWM Mode 0
In Mode 1, TLx provides linear prescaling with an 8-bit auto-reload from RLx (see
page
THx overflow, the duty cycle value in RHx is transferred to OCRx and the output pin is set high.
When the count in THx matches OCRx, the output pin is cleared low. The following formulas
give the output frequency and duty cycle for Timer 0 in PWM mode 1. Timer 1 in PWM mode 1 is
identical to Timer 0.
INT1 Pin
49). On TLx overflow, TLx is loaded with the value of RLx. THx acts as an 8-bit counter. On
GATE
OSC
TR1
Mode 0:
Mode 1:
÷TPS
Control
f
f
OUT
OUT
=
=
Duty Cycle %
Duty Cycle %
Oscillator Frequency
------------------------------------------------------ -
Oscillator Frequency
------------------------------------------------------ -
PSC1
256
256
×
(8 Bits)
×
(
TL1
256 RL0
2
PSC0
=
=
–
100
100
+
1
(8 Bits)
(8 Bits)
OCR1
)
RH1
TH1
×
×
×
RH0
----------- -
×
RH0
----------- -
256
256
-------------------- -
TPS
-------------------- -
TPS
=
1
1
+
+
1
1
Figure
3654A–MICRO–8/09
Figure 11-7 on
11-6). The
T1
Related parts for AT89LP828-20MH
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
MCU 8051 8K FLASH SPI 32TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 8K FLASH SPI 32PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 8K FLASH SPI 28PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU 8051 8KB FLASH 28PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU 8051 8KB FLASH 32PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash, 2.4-5.5V
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: