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AT89LP4052-20PI Datasheet(PDF) 2 Page - ATMEL Corporation

Part # AT89LP4052-20PI
Description  8-bit Microcontroller with 2/4-Kbyte Flash
PDF  90 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP4052-20PI Datasheet(HTML) 2 Page - ATMEL Corporation

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2
3547F–MICRO–6/06
AT89LP2052/LP4052
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
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
(VPP) RST
(RXD) P3.0
(TXD) P3.1
XTAL2
XTAL1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
GND
VCC
P1.7 (SCK)
P1.6 (MISO)
P1.5 (MOSI)
P1.4 (SS)
P1.3
P1.2
P1.1 (AIN1)
P1.0 (AIN0)
P3.7 (SYSCLK)



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