AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 161

• 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

Figure 25-4. Command Sequence Flow Chart
Figure 25-5. ISP Command Packet (Serial)
Figure 25-6. ISP Command Packet (Parallel)
3706A–MICRO–9/09
MOSI
MISO
SCK
SCK
SS
OE
OE
SS
P0
P0
Preamble 1
AAh
AAh
X
For a summary of available commands, see
Preamble 2
55h
55h
X
Input Preamble 1
Input Preamble 2
Input Address
Input Address
Input Opcode
Input/Output
High Byte
Low Byte
(AAh)
(55h)
Data
7
6 5 4 3 2 1
Opcode
Opcode
Opcode
X
0
WRITE
READ
7
Address High
Address High
6 5 4 3 2 1
Address +1
Address High
Table 25-2 on page
X
AT89LP6440 - Preliminary
0
7
Address Low
Address Low
6 5 4 3 2 1
Address Low
X
162.
0
7
7
Data In
6 5 4 3 2 1
6 5 4 3 2 1
Data Out
Data In
Data Out
0
0
161