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AT89LV51-12AC fiches techniques PDF

ATMEL Corporation - 8-Bit Microcontroller with 4K Bytes Flash

Numéro de référence AT89LV51-12AC
Description 8-Bit Microcontroller with 4K Bytes Flash
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT89LV51-12AC fiche technique
Features
Compatible with MCS-51™ Products
4K Bytes of Reprogrammable Flash Memory
– Endurance: 1,000 Write/Erase Cycles
2.7V to 6V Operating Range
Fully Static Operation: 0 Hz to 12 MHz
Three-Level Program Memory Lock
128 x 8-Bit Internal RAM
32 Programmable I/O Lines
Two 16-Bit Timer/Counters
Six Interrupt Sources
Programmable Serial Channel
Low Power Idle and Power Down Modes
Description
The AT89LV51 is a low-voltage, high-performance CMOS 8-bit microcomputer with
4K bytes of Flash Programmable and Erasable Read Only Memory. The device is
manufactured using Atmel’s high density nonvolatile memory technology and is com-
patible with the industry standard MCS-51™ instruction set and pinout. The on-chip
Flash allows the program memory to be reprogrammed in-system or by a conven-
tional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash
on a monolithic chip, the Atmel AT89LV51 is a powerful microcomputer which pro-
vides a highly flexible and cost effective solution to many embedded control applica-
tions. The AT89LV51 operates at 2.7 volts up to 6.0 volts.
Pin Configurations
(continued)
PDIP
TQFP
INDEX
CORNER
P1.5
P1.6
P1.7
RST
(RXD) P3.0
NC
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
4 44 34 24 14 03 93 83 73 63 53 4
1 33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
1
21
31
1
4
51
61
71
1
8
9
2
0
2
12
2
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
(WR) P3.6
(RD) P3.7
X TA L 2
X TA L 1
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 VCC
39 P0.0 (AD0)
38 P0.1 (AD1)
37 P0.2 (AD2)
36 P0.3 (AD3)
35 P0.4 (AD4)
34 P0.5 (AD5)
33 P0.6 (AD6)
32 P0.7 (AD7)
31 EA/VPP
30 ALE/PROG
29 PSEN
28 P2.7 (A15)
27 P2.6 (A14)
26 P2.5 (A13)
25 P2.4 (A12)
24 P2.3 (A11)
23 P2.2 (A10)
22 P2.1 (A9)
21 P2.0 (A8)
PLCC
INDEX
CORNER
(RXD)
(TXD)
(INT0)
(INT1)
(T0)
(T1)
P1.5
P1.6
P1.7
RST
P3.0
NC
P3.1
P3.2
P3.3
P3.4
P3.5
6 4 2 44 42 40
7 5 3 1 43 4139
8 38
9 37
10 36
11 35
12 34
13 33
14 32
15 31
16 30
11781 92 02 12 22 32 42 52 62 72289
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
8-Bit
Microcontroller
with 4K Bytes
Flash
AT89LV51
0303D-D–12/97
4-45

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