AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 192

• 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

21 Programmable Watchdog Timer ......................................................... 141
22 Instruction Set Summary .................................................................... 143
23 Register Index ...................................................................................... 153
24 On-Chip Debug System ....................................................................... 155
25 Programming the Flash Memory ........................................................ 157
26 Electrical Characteristics .................................................................... 170
21.1
22.1
24.1
24.2
24.3
25.1
25.2
25.3
25.4
25.5
25.6
25.7
25.8
25.9
26.1
26.2
26.3
26.4
26.5
26.6
26.7
26.8
26.9
26.10
26.11
26.12
Software Reset ..............................................................................................142
Instruction Set Extensions .............................................................................147
Physical Interface ..........................................................................................155
Software Breakpoints ....................................................................................156
Limitations of On-Chip Debug .......................................................................156
Physical Interface ..........................................................................................157
Memory Organization ....................................................................................159
Command Format ..........................................................................................160
Status Register ..............................................................................................163
DATA Polling .................................................................................................163
Flash Security ................................................................................................163
User Configuration Fuses ..............................................................................164
User Signature and Analog Configuration .....................................................165
Programming Interface Timing ......................................................................165
Absolute Maximum Ratings* .........................................................................170
DC Characteristics .........................................................................................170
Typical Characteristics ..................................................................................171
Clock Characteristics .....................................................................................173
Reset Characteristics ....................................................................................173
External Data Memory Characteristics ..........................................................174
Serial Peripheral Interface Timing .................................................................175
Two-wire Serial Interface Characteristics ......................................................178
Serial Port Timing: Shift Register Mode ........................................................179
Dual Analog Comparator Characteristics ......................................................180
DADC Characteristics ....................................................................................180
Test Conditions ..............................................................................................181
3706A–MICRO–9/09