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AT87LV55-16PI PDF预览

AT87LV55-16PI

更新时间: 2024-11-24 08:38:43
品牌 Logo 应用领域
爱特美尔 - ATMEL 微控制器
页数 文件大小 规格书
27页 351K
描述
8-bit Microcontroller with 20K Bytes QuickFlash?

AT87LV55-16PI 数据手册

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Features  
Compatible with MCS-51Products  
20K Bytes of One-time Programmable QuickFlash Memory  
2.7V to 5.5V Operating Range  
Fully Static Operation: 0 Hz to 16 MHz  
Three-level Program Memory Lock  
256 x 8-bit Internal RAM  
32 Programmable I/O Lines  
Three 16-bit Timer/Counters  
Eight Interrupt Sources  
Programmable Serial Channel  
Low-power Idle and Power Down Modes  
Interrupt Recovery from Power Down  
Hardware Watchdog Timer  
8-bit  
Microcontroller  
with 20K Bytes  
QuickFlash®  
Dual Data Pointer  
Power-off Flag  
Description  
The AT87LV55 is a low-voltage, high-performance CMOS 8-bit microcomputer with  
20K bytes of QuickFlash one-time programmable (OTP) read only memory and 256  
bytes of RAM. The device is manufactured using Atmel’s high-density nonvolatile  
memory technology and is compatible with the industry standard MCS-51 instruction  
set and pinout. The on-chip QuickFlash allows the program memory to be user pro-  
(continued)  
AT87LV55  
Preliminary  
Pin Configurations  
PDIP  
(T2) P1.0  
(T2EX) P1.1  
P1.2  
1
2
3
4
5
6
7
8
9
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  
P1.3  
P1.4  
P1.5  
TQFP  
P1.6  
P1.7  
RST  
(RXD) P3.0 10  
(TXD) P3.1 11  
(INT0) P3.2 12  
(INT1) P3.3 13  
(T0) P3.4 14  
(T1) P3.5 15  
(WR) P3.6 16  
(RD) P3.7 17  
XTAL2 18  
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)  
P1.5  
P1.6  
1
2
3
4
5
6
7
8
9
33 P0.4 (AD4)  
32 P0.5 (AD5)  
31 P0.6 (AD6)  
30 P0.7 (AD7)  
29 EA/VPP  
P1.7  
RST  
(RXD) P3.0  
NC  
XTAL1 19  
28 NC  
GND 20  
(TXD) P3.1  
(INT0) P3.2  
(INT1) P3.3  
27 ALE/PROG  
26 PSEN  
25 P2.7 (A15)  
24 P2.6 (A14)  
23 P2.5 (A13)  
PLCC  
(T0) P3.4 10  
(T1) P3.5 11  
P1.5  
P1.6  
P1.7  
7
8
9
39 P0.4 (AD4)  
38 P0.5 (AD5)  
37 P0.6 (AD6)  
36 P0.7 (AD7)  
35 EA/VPP  
34 NC  
RST 10  
(RXD) P3.0 11  
NC 12  
(TXD) P3.1 13  
(INT0) P3.2 14  
(INT1) P3.3 15  
(T0) P3.4 16  
(T1) P3.5 17  
33 ALE/PROG  
32 PSEN  
31 P2.7 (A15)  
30 P2.6 (A14)  
29 P2.5 (A13)  
Rev. 1609A–04/00  

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