AT89LP52 Atmel Corporation, AT89LP52 Datasheet - Page 5
AT89LP52
Manufacturer Part Number
AT89LP52
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT89LP51.pdf
(117 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP52-20AU
Manufacturer:
Atmel
Quantity:
250
Company:
Part Number:
AT89LP52-20JU
Manufacturer:
Atmel
Quantity:
110
Company:
Part Number:
AT89LP52-20MU
Manufacturer:
Atmel
Quantity:
490
Table 1-1.
3709D–MICRO–12/11
TQFP
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
PLCC
Pin Number
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
1
2
3
4
5
6
AT89LP51/52 Pin Description
PDIP
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
VQFN
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Symbol
P2.3
P2.4
P2.5
P2.6
P2.7
P4.5
P4.4
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
VDD
P1.0
P1.1
P1.2
P1.3
P1.4
POL
Type
I/O
I/O
I/O
NC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
NC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
I
I
I
Description
P2.3: I/O Port 2 bit 3.
A11: External memory interface Address bit 11.
P2.4: I/O Port 2 bit 5.
A12: External memory interface Address bit 12.
P2.5: I/O Port 2 bit 5.
A13: External memory interface Address bit 13.
P2.6: I/O Port 2 bit 6.
A14: External memory interface Address bit 14.
P2.7: I/O Port 2 bit 7.
A15: External memory interface Address bit 15.
P4.5: I/O Port 4 bit 5.
PSEN: External memory interface Program Store Enable (active-low).
P4.4: I/O Port 4 bit 4.
ALE: External memory interface Address Latch Enable.
Not internally connected
POL: Reset polarity
P0.7: I/O Port 0 bit 7.
AD7: External memory interface Address/Data bit 7.
P0.6: I/O Port 0 bit 6.
AD6: External memory interface Address/Data bit 6.
P0.5: I/O Port 0 bit 5.
AD5: External memory interface Address/Data bit 5.
P0.4: I/O Port 0 bit 4.
AD4: External memory interface Address/Data bit 4.
P0.3: I/O Port 0 bit 3.
AD3: External memory interface Address/Data bit 3.
P0.2: I/O Port 0 bit 2.
AD2: External memory interface Address/Data bit 2.
P0.1: I/O Port 0 bit 1.
AD1: External memory interface Address/Data bit 1.
P0.0: I/O Port 0 bit 0.
AD0: External memory interface Address/Data bit 0.
Supply Voltage
Not internally connected
P1.0: I/O Port 1 bit 0.
T2: Timer 2 External Input or Clock Output.
P1.1: I/O Port 1 bit 1.
T2EX: Timer 2 External Capture/Reload Input.
P1.2: I/O Port 1 bit 2.
P1.3: I/O Port 1 bit 3.
P1.4: I/O Port 1 bit 4.
(See “External Reset” on page
33.)
AT89LP51/52
5