AT89LP216-20PI datasheet(2/90 Pages) ATMEL

2 / 90 page

3621A–MICRO–6/06

AT89LP216 [Preliminary]

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 out-

puts, 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 pro-

vides 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.

Pin Configuration

2.1

AT89LP216: 16-lead PDIP/SOIC/TSSOP

(GPI5/MOSI) P1.5

(GPI7/SCK) P1.7

(GPI3/RST) P1.3

GND

(GPI2) P1.2

(RXD) P3.0

(T0) P3.4

(XTAL1/INT0) P3.2

P1.6 (MISO/GPI6)

P1.4 (SS/GPI4)

P1.1 (AIN1/GPI1)

P1.0 (AIN0/GPI0)

VCC

P3.1 (TXD)

P3.5 (T1)

P3.3 (INT1/XTAL2/CLKOUT)

AT89LP216-20PI 데이터시트(PDF) 2 Page - ATMEL Corporation