AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 57

• Manufacturer Part Number: AT89LP6440-20AU
• Description: MCU 8051 64K FLASH ISP 44TQFP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP6440-20AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Package: 44TQFP
• Device Core: 8051
• Family Name: 89LP
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 38
• Interface Type: 2-Wire/SPI
• On-chip Dac: 8-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3706A–MICRO–9/09
Figure 11-7. Timer/Counter 1 PWM Mode 1
Figure 11-8. Timer/Counter 1 PWM Mode 2
Note:
Figure 11-9. PWM Mode 2 Waveform
INT1 Pin
GATE1
{RH0 & RL0}/{RH1 & RL1} are not required by Timer 0/Timer 1 during PWM Mode 2 and may be
used as temporary storage registers.
INT1 Pin
THx
FFh
GATE1
OSC
Tx
TR1
TR1
OSC
÷TPS
Control
÷TPS
Control
AT89LP6440 - Preliminary
(8 Bits)
(8 Bits)
RL1
TL1
(8 Bits)
(8 Bits)
TH1
TL1
(8 Bits)
(8 Bits)
OCR1
RH1
TH1
=
T1
T1
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