AT89LP2052-20SU Atmel, AT89LP2052-20SU Datasheet - Page 2

• Manufacturer Part Number: AT89LP2052-20SU
• Description: IC 8051 MCU FLASH 2K 20SOIC
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP2052-20SU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Package: 20SOIC W
• Device Core: 8051
• Family Name: AT89
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

2. Pin Configuration
2.1
2
20-lead PDIP/SOIC/TSSOP
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.
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(VPP) RST
(TXD) P3.1
(T0) P3.4
(T1) P3.5
XTAL2
XTAL1
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
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)
3547J–MICRO–10/09