AT89LP4052(2008) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89LP4052
(Rev.:2008)

8-bit Microcontroller with 2/4-Kbyte Flash

Atmel Corporation 

The two timer/counters in the AT89LP2052/LP4052 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 both timer/counters may be configured as 8-bit

Pulse Width Modulators with 8-bit prescalers.

The I/O ports of the AT89LP2052/LP4052 can be independently configured in one of four oper-

ating modes. In quasi-bidirectional mode, the ports operate as in the classic 8051. In input

mode, the ports are tri-stated. Push-pull output mode provides full CMOS drivers and open-drain

mode provides just a pull-down.

2. Pin Configuration

2.1 20-lead PDIP/SOIC/TSSOP

(VPP) RST 1

(RXD) P3.0 2

(TXD) P3.1 3

XTAL2 4

XTAL1 5

(INT0) P3.2 6

(INT1) P3.3 7

(T0) P3.4 8

(T1) P3.5 9

GND 10

20 VCC

19 P1.7 (SCK)

18 P1.6 (MISO)

17 P1.5 (MOSI)

16 P1.4 (SS)

15 P1.3

14 P1.2

13 P1.1 (AIN1)

12 P1.0 (AIN0)

11 P3.7 (SYSCLK)

2 AT89LP2052/LP4052

3547I–MICRO–6/08

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