AT89LP52 Atmel Corporation, AT89LP52 Datasheet - Page 2

• Manufacturer Part Number: AT89LP52
• Manufacturer: Atmel Corporation

Specifications of AT89LP52

• Flash (kbytes): 8 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 36
• Uart: 1
• Sram (kbytes): 0.25
• Eeprom (bytes): 256
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 3
• Isp: SPI
• Watchdog: Yes

1. Pin Configurations
1.1
1.2
2
40-lead PDIP
44-lead TQFP
AT89LP51/52
(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)
3709D–MICRO–12/11