AT89LP51RC2 Atmel Corporation, AT89LP51RC2 Datasheet - Page 2

• Manufacturer Part Number: AT89LP51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89LP51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 42
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 7
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 1.375
• Self Program Memory: API
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 4
• Isp: SPI/OCD/UART
• Watchdog: Yes

1. Pin Configurations
1.1
1.2
2
(†MOSI/CEX2/MISO) P1.5
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
† SPI in remap mode
‡ AT89LP51ID2 Only
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
† SPI in remap mode
‡ AT89LP51ID2 Only
44-lead VQFP
44-lead PLCC
AT89LP51RB2/RC2/IC2 Summary
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(SDA) P4.1
(TXD) P3.1
(DCL) RST
(RXD) P3.0
(INT0) P3.2
(INT1) P3.3
(SDA) P4.1
(TXD) P3.1
(DCL) RST
(T0) P3.4
(T1) P3.5
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
11
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
33
32
31
30
29
28
27
26
25
24
23
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.0 (SCL)
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.0 (SCL)
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)
1.3
1.4
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
† SPI in remap mode
‡ AT89LP51ID2 Only
(†MOSI/CEX2/MISO) P1.5
(†SCK/CEX4/MOSI) P1.7
(†MISO/CEX3/SCL) P1.6
44-pad VQFN/QFN/MLF
40-pin PDIP
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(DCL) RST
(SDA) P4.1
(TXD) P3.1
NOTE:
Bottom pad
should be
soldered to ground
(T0) P3.4
(T1) P3.5
(†SS/CEX1) P1.4
(SS/T2EX) P1.1
(XTAL2A) P4.7
(XTAL1A) P4.6
(CEX0) P1.3
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(TXD) P3.1
(ECI) P1.2
(WR) P3.6
(RD) P3.7
(T2) P1.0
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
11
GND
RST
†SPI in remap mode
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
VDD
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
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)
P2.4 (A12/AIN0)
P2.3 (A11/DAC+)
P2.2 (A10/DAC-)
P2.1 (A9)
P2.0 (A8)
3722AS–MICRO–10/11
33
32
31
30
29
28
27
26
25
24
23
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.0 (SCL)
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)