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Atmel Electronic Components Datasheet

AT89LP51RD2 Datasheet

8-bit Microcontroller

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Features
8-bit Microcontroller Compatible with 8051 Products
Enhanced 8051 Architecture
– Single Clock Cycle per Byte Fetch
– 12 Clock per Machine Cycle Compatibility Mode
– Up to 20 MIPS Throughput at 20 MHz Clock Frequency
– Fully Static Operation: 0 Hz to 20 MHz
– On-chip 2-cycle Hardware Multiplier
– 16x16 Multiply–Accumulate Unit
– 256 x 8 Internal RAM
– On-chip 2KB Expanded RAM (ERAM)
• Software Selectable Size (0, 256, 512, 768, 1024, 1792, 2048 Bytes)
– Dual Data Pointers
– 4-level Interrupt Priority
Nonvolatile Program and Data Memory
– 64KB of In-System Programmable (ISP) Flash Program Memory
– 4KB of EEPROM (AT89LP51ED2/ID2 Only)
– 512-byte User Signature Array
– Endurance: 10,000 Write/Erase Cycles
– Serial Interface for Program Downloading
– 2KB Boot ROM Contains Low Level Flash Programming Routines and a Default
Serial Bootloader
Peripheral Features
– Three 16-bit Enhanced Timer/Counters
– Seven 8-bit PWM Outputs
– 16-bit Programmable Counter Array
• High Speed Output, Compare/Capture
• Pulse Width Modulation, Watchdog Timer Capabilities
– Enhanced UART with Automatic Address Recognition and Framing
Error Detection
– Enhanced Master/Slave SPI with Double-buffered Send/Receive
– Two Wire Interface 400K bit/s
– Programmable Watchdog Timer with Software Reset
– 8 General-purpose Interrupt and Keyboard Interface Pins
Special Microcontroller Features
– Dual Oscillator Support: Crystal, 32 kHz Crystal, 8 MHz Internal (AT89LP51ID2)
– Two-wire On-Chip Debug Interface
– Brown-out Detection and Power-on Reset with Power-off Flag
– Selectable Polarity External Reset Pin
– Low Power Idle and Power-down Modes
– Interrupt Recovery from Power-down Mode
– 8-bit Clock Prescaler
I/O and Packages
– Up to 40 Programmable I/O Lines
– Green (Pb/Halide-free) PLCC44, VQFP44, QFN44, PDIP40
– Configurable I/O Modes
• Quasi-bidirectional (80C51 Style), Input-only (Tristate)
• Push-pull CMOS Output, Open-drain
Operating Conditions
– 2.4V to 5.5V VCC Voltage Range
– -40° C to 85°C Temperature Range
– 0 to 20 MHz @ 2.4V–5.5V (Single-cycle)
8-bit Flash
Microcontroller
with 64KB
Program
Memory
AT89LP51RD2
AT89LP51ED2
AT89LP51ID2
Preliminary
Summary
3714AS–MICRO–7/11


Atmel Electronic Components Datasheet

AT89LP51RD2 Datasheet

8-bit Microcontroller

No Preview Available !

1. Pin Configurations
1.1 44-lead VQFP
1.3 44-pad VQFN/QFN/MLF
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
(DCL) RST
(RXD) P3.0
(SDA) P4.1
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
11
SPI in remap mode
‡ AT89LP51ID2 Only
33 P0.4 (AD4)
32 P0.5 (AD5)
31 P0.6 (AD6)
30 P0.7 (AD7)
29 POL
28 P4.0 (SCL)
27 P4.4 (ALE)
26 P4.5 (PSEN)
25 P2.7 (A15/AIN3)
24 P2.6 (A14/AIN2)
23 P2.5 (A13/AIN1)
SPI in remap mode
‡ AT89LP51ID2 Only
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
(DCL) RST
(RXD) P3.0
(SDA) P4.1
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
11
NOTE:
Bottom pad
should be
soldered to ground
33 P0.4 (AD4)
32 P0.5 (AD5)
31 P0.6 (AD6)
30 P0.7 (AD7)
29 POL
28 P4.0 (SCL)
27 P4.4 (ALE)
26 P4.5 (PSEN)
25 P2.7 (A15/AIN3)
24 P2.6 (A14/AIN2)
23 P2.5 (A13/AIN1)
1.2 44-lead PLCC
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
(DCL) RST
(RXD) P3.0
(SDA) P4.1
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
7
8
9
10
11
12
13
14
15
16
17
SPI in remap mode
‡ AT89LP51ID2 Only
1.4 40-pin PDIP
39 P0.4 (AD4)
38 P0.5 (AD5)
37 P0.6 (AD6)
36 P0.7 (AD7)
35 POL
34 P4.0 (SCL)
33 P4.4 (ALE)
32 P4.5 (PSEN)
31 P2.7 (A15/AIN3)
30 P2.6 (A14/AIN2)
29 P2.5 (A13/AIN1)
(T2) P1.0
(SS/T2EX) P1.1
(ECI) P1.2
(CEX0) P1.3
(†SS/CEX1) P1.4
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCL) P1.6
(†SCK/CEX4/MOSI) P1.7
RST
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
(WR) P3.6
(RD) P3.7
(XTAL2A) P4.7
(XTAL1A) P4.6
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 VDD
39 P0.0 (AD0)
38 P0.1 (AD1)
37 P0.2 (AD2)
36 P0.3 (AD3)
35 P0.4 (AD4)
34 P0.5 (AD5)
33 P0.6 (AD6)
32 P0.7 (AD7)
31 POL
30 P4.4 (ALE)
29 P4.5 (PSEN)
28 P2.7 (A15/AIN3)
27 P2.6 (A14/AIN2)
26 P2.5 (A13/AIN1)
25 P2.4 (A12/AIN0)
24 P2.3 (A11/DAC+)
23 P2.2 (A10/DAC-)
22 P2.1 (A9)
21 P2.0 (A8)
†SPI in remap mode
2 AT89LP51RD2/ED2/ID2 Summary - Preliminary
3714AS–MICRO–7/11


Part Number AT89LP51RD2
Description 8-bit Microcontroller
Maker ATMEL
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AT89LP51RD2 Datasheet PDF






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