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AT27LV520-90XC PDF预览

AT27LV520-90XC

更新时间: 2024-11-27 22:16:39
品牌 Logo 应用领域
爱特美尔 - ATMEL 可编程只读存储器电动程控只读存储器
页数 文件大小 规格书
10页 133K
描述
512K 64K x 8 Multiplexed Addresses/ Outputs Low Voltage OTP EPROM

AT27LV520-90XC 数据手册

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Features  
8-Bit Multiplexed Addresses/Outputs  
Fast Read Access Time - 90 ns  
Dual Voltage Range Operation  
– Low-Voltage Power Supply Range, 3.0V to 3.6V, or  
– Standard 5V ± 10% Supply Range  
Low Power CMOS Operation  
– 20 µA max. Standby for ALE = VIH and VCC = 3.6V  
– 29 mW max. Active at 5 MHz for VCC = 3.6V  
20-Lead TSSOP Package  
High Reliability CMOS Technology  
– 2,000V ESD Protection  
512K (64K x 8)  
Multiplexed  
Addresses/  
Outputs  
– 200 mA Latchup Immunity  
RapidProgramming Algorithm - 50 µs/byte (typical)  
CMOS and TTL Compatible Inputs and Outputs  
– JEDEC Standard for LVTTL  
Integrated Product Identification Code  
Commercial and Industrial Temperature Range  
Low Voltage  
OTP EPROM  
Description  
The AT27LV520 is a low-power, high-performance 524,288-bit one-time programma-  
ble read only memory (OTP EPROM) organized 64K by 8 bits. It incorporates latches  
for the 8 lower order address bits to multiplex with the 8 data bits. This minimizes sys-  
tem chip count, reduces cost, and simplifies the design of multiplexed bus systems. It  
requires only one power supply in the range of 3.0V to 3.6V for normal read mode  
operation, making it ideal for fast, portable systems using battery power. Any byte can  
be accessed in less than 90 ns.  
AT27LV520  
The AT27LV520 is available in 173 mil, 20-pin TSSOP, 300 mil, 20-pin SOIC and 28-  
pin TSOP, one-time programmable (OTP) plastic packages.  
(continued)  
Pin Configurations  
TSSOP Top View  
Pin Name Function  
A10  
A12  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
A8  
A8 - A15  
Addresses  
AD1  
AD3  
AD5  
AD7  
GND  
AD6  
AD4  
AD2  
AD0  
A14  
AD0 - AD7 Addresses/Outputs  
ALE  
VCC  
OE/VPP  
A15  
OE /VPP  
ALE  
Output Enable/VPP  
A13  
Address Latch Enable  
A11  
A9  
TSOP Top View  
A10  
NC  
22  
23  
24  
25  
26  
27  
21  
A8  
SOIC Top View  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
NC  
NC  
NC  
A12  
A14  
ALE  
VCC  
OE/VPP  
A15  
A13  
A11  
NC  
AD1  
AD3  
AD5  
AD7  
GND  
AD6  
AD4  
AD2  
NC  
OE/VPP  
A15  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
VCC  
ALE  
A14  
A12  
A10  
A8  
A13  
28  
1
A11  
A9  
2
3
4
5
6
7
AD0  
AD2  
AD4  
AD6  
GND  
AD1  
AD3  
AD5  
AD7  
NC  
NC  
A9  
8
AD0  
Rev. 0911B-B–01/98  

AT27LV520-90XC 替代型号

型号 品牌 替代类型 描述 数据表
AT27LV520-90SI ATMEL

完全替代

512K 64K x 8 Multiplexed Addresses/ Outputs Low Voltage OTP EPROM
AT27LV520-90XU ATMEL

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