Features: • 8-bit Microcontroller Compatible with MCS®51 Products
• Enhanced 8051 Architecture
Single-clock Cycle per Byte Fetch
Up to 20 MIPS Throughput at 20 MHz Clock Frequency
Fully Static Operation: 0 Hz to 20 MHz
On-chip 2-cycle Hardware Multiplier
128 x 8 Internal RAM
4-level Interrupt Priority
• Nonvolatile Program Memory
2K Bytes of In-System Programmable (ISP) Flash Memory
Endurance: Minimum 10,000 Write/Erase Cycles
Data Retention: Minimum 10 Years
Serial Interface for Program Downloading
32-byte Fast Page Programming Mode
64-byte User Signature Array
2-level Program Memory Lock for Software Security
• Peripheral Features
Two 16-bit Enhanced Timer/Counters
Two 8-bit PWM Outputs
Enhanced UART with Automatic Address Recognition and Framing
Error Detection
Enhanced Master/Slave SPI with Double-buffered Send/Receive
Programmable Watchdog Timer with Software Reset
Analog Comparator with Selectable Interrupt and Debouncing
8 General-purpose Interrupt Pins
• Special Microcontroller Features
Two-wire On-chip Debug Interface
Brown-out Detection and Power-on Reset with Power-off Flag
Internal RC Oscillator
Low Power Idle and Power-down Modes
Interrupt Recovery from Power-down Mode
• I/O and Packages
Up to 14 Programmable I/O Lines
Configurable I/O with Quasi-bidirectional, Input, Push-pull Output, and
Open-drain Modes
5V Tolerant I/O
16-lead TSSOP/SOIC/PDIP
• Operating Conditions
2.4V to 5.5V VCC Voltage Range
-40°C to 85°C Temperature RangePinout
SpecificationsOperating Temperature .............................. -40°C to +85°C
Storage Temperature ............................... -65°C to +150°C
Voltage on Any Pin with Respect to Ground......-0.7V to +5.5V
Maximum Operating Voltage ........................................... 5.5V
DC Output Current..................................................... 15.0 mADescriptionThe AT89LP216 is a low-power, high-performance CMOS 8-bit microcontroller with 2K bytes of In-System Programmable Flash memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set.
The AT89LP216 is built around an enhanced CPU core that can fetch a single byte from memory every clock cycle. In the classic 8051 architecture, each fetch requires 6 clock cycles, forcing instructions to execute in 12, 24 or 48 clock cycles. In the AT89LP216 CPU, instructions need only 1 to 4 clock cycles providing 6 to 12 times more throughput than the standard 8051. Seventy percent of instructions need only as many clock cycles as they have bytes to execute, and most of the remaining instructions require only one additional clock. The enhanced CPU core is capable of 20 MIPS throughput whereas the classic 8051 CPU can deliver only 4 MIPS at the same current consumption. Conversely, at the same throughput as the classic 8051, the new CPU core runs at a much lower speed and thereby greatly reduces power consumption.
The AT89LP216 provides the following standard features: 2K bytes of In-System Programmable Flash memory, 128 bytes of RAM, up to 12 I/O lines, two 16-bit timer/counters, two PWM outputs, a programmable watchdog timer, a full-duplex serial port, a serial peripheral interface, an internal RC oscillator, on-chip crystal oscillator, and a four-level, six-vector interrupt system.
The two timer/counters in the AT89LP216 are enhanced with two new modes. Mode 0 can be configured as a variable 9- to 16-bit timer/counter and Mode 1 can be configured as a 16-bit auto-reload timer/counter. In addition, the timer/counters may independently drive a pulse width modulation output.
The I/O ports of the AT89LP216 can be independently configured in one of four operating modes. In quasi-bidirectional mode, the ports operate as in the classic 8051. In input mode, the ports are tristated. Push-pull output mode provides full CMOS drivers and open-drain mode provides just a pull-down. In addition, all 8 pins of Port 1 can be configured to generate an interrupt using the general-purpose interrupt interface. The I/O pins of the AT89LP216 tolerate voltages higher than the device's own power supply, up to 5.5V. When the device is supplied at 2.4V and all I/O ports receive 5.5V, the total back flowing current an all I/Os is less than 100 µA.
AT89LP216 Data Sheet
