AT89LP52-20AU Atmel, AT89LP52-20AU Datasheet - Page 2

• Manufacturer Part Number: AT89LP52-20AU
• Description: IC MCU 8051 8K FLASH SPI 44TQFP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP52-20AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 8KB (8K 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: 44-TQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: Serial
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

1. Pin Configurations
1.1
1.2
2
40-lead PDIP
44-lead TQFP
AT89LP51/52 - Preliminary
(MOSI) P1.5
(MISO) P1.6
(RXD) P3.0
(INT0) P3.2
(INT1) P3.3
(SCK) P1.7
(TXD) P3.1
(T0) P3.4
(T1) P3.5
RST
*NC
(XTAL2) P4.1
(XTAL1) P4.0
(T2 EX) P1.1
(MOSI) P1.5
(MISO) P1.6
1
2
3
4
5
6
7
8
9
10
11
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(SCK) P1.7
(TXD) P3.1
(WR) P3.6
(RD) P3.7
(T2) P1.0
(T0) P3.4
(T1) P3.5
GND
P1.2
P1.3
P1.4
RST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.2 (ALE)
P4.3 (PSEN)
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
33
32
31
30
29
28
27
26
25
24
23
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
*NC
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
3709B–MICRO–12/10