AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 190

• 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

8
9
10 I/O Ports .................................................................................................. 44
11 Enhanced Timer 0 and Timer 1 with PWM ........................................... 50
12 Enhanced Timer 2 .................................................................................. 59
13 Compare/Capture Array ........................................................................ 68
14 External Interrupts ................................................................................. 81
15 General-purpose Interrupts .................................................................. 82
Power Saving Modes ............................................................................. 35
Interrupts ................................................................................................ 38
7.5
8.1
8.2
8.3
9.1
10.1
10.2
10.3
10.4
11.1
11.2
11.3
11.4
11.5
12.1
12.2
12.3
12.4
12.5
13.1
13.2
13.3
13.4
Software Reset ................................................................................................35
Idle Mode .........................................................................................................35
Power-down Mode ...........................................................................................36
Reducing Power Consumption ........................................................................37
Interrupt Response Time .................................................................................40
Port Configuration ............................................................................................44
Port Analog Functions .....................................................................................47
Port Read-Modify-Write ...................................................................................47
Port Alternate Functions ..................................................................................48
Mode 0 – Variable Width Timer/Counter .........................................................51
Mode 1 – 16-bit Auto-Reload Timer/Counter ...................................................51
Mode 2 – 8-bit Auto-Reload Timer/Counter .....................................................52
Mode 3 – 8-bit Split Timer ...............................................................................52
Pulse Width Modulation ...................................................................................55
Timer 2 Registers ............................................................................................60
Capture Mode ..................................................................................................61
Auto-Reload Mode ...........................................................................................62
Baud Rate Generator ......................................................................................66
Frequency Generator (Programmable Clock Out) ...........................................67
CCA Registers .................................................................................................69
Input Capture Mode .........................................................................................71
Output Compare Mode ....................................................................................74
Pulse Width Modulation Mode .........................................................................76
3706A–MICRO–9/09