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Features
? Fast read access time – 120ns
? Dual voltage range operation
– Unregulated battery power supply range, 2.7V to 3.6V, or
– Standard power supply range, 5V ? 10%
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Compatible with JEDEC standard Atmel ? AT27C040
Low-power CMOS operation
– 20μA max standby (less than 1μA, typical) for V CC = 3.6V
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– 36mW max active at 5MHz for V CC = 3.6V
JEDEC standard packages
– 32-lead PLCC
– 32-lead TSOP
High-reliability CMOS technology
– 2,000V ESD protection
– 200mA latchup immunity
Rapid programming algorithm – 100μs/byte (typical)
CMOS- and TTL-compatible inputs and outputs
– JEDEC standard for LVTTL and LVBO
Integrated product identification code
Industrial temperature range
Green (Pb/halide-free, RoHS compliant) packaging
4Mb (512K x 8)
Unregulated Battery
Voltage, High-speed,
One-time
Programmable, Read
Only Memory
Atmel AT27BV040
Not recommended for
1.
Description
new designs
The Atmel AT27BV040 chip is a high-performance, low-power, low-voltage, 4,194,304-bit,
one-time programmable, read only memory (EPROM) organized as 512K by 8 bits. It
requires only one supply in the range of 2.7 to 3.6V in normal read mode operation, making
it ideal for fast, portable systems using either regulated or unregulated battery power.
The Atmel innovative design techniques provide fast speeds that rival 5V parts, while keep-
ing the low power consumption of a 3V supply. At V CC = 2.7V, any byte can be accessed in
less than 100ns. With a typical power dissipation of only 18mW at 5MHz and V CC = 3V, the
AT27BV040 consumes less than one-fifth the power of a standard, 5V EPROM. Standby
mode supply current is typically less than 1μA at 3V. The AT27BV040 simplifies system
design and stretches battery lifetime even further by eliminating the need for power supply
regulation.
The AT27BV040 is available in industry-standard, JEDEC-approved, one-time programma-
ble (OTP) PLCC and plastic TSOP packages. All devices feature two-line control (CE, OE)
to give designers the flexibility to prevent bus contention.
The AT27BV040 operating with V CC at 3.0V produces TTL-level outputs that are compatible
with standard TTL logic devices operating at V CC = 5.0V. At V CC = 2.7V, the part is compati-
ble with JEDEC-approved, low-voltage battery operation (LVBO) interface specifications.
The device is also capable of standard, 5V operation, making it ideally suited for dual supply
range systems or card products that are pluggable in both 3V and 5V hosts.
The Atmel AT27BV040 has additional features to ensure high quality and efficient produc-
tion use. The rapid programming algorithm reduces the time required to program the part
and guarantees reliable programming. Programming time is typically only 100μs/byte. The
0346H–EPROM–4/11
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相关代理商/技术参数
AT27BV040-12LC
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12LI
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12PC
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12PI
制造商:未知厂家 制造商全称:未知厂家 功能描述:x8 EPROM
AT27BV040-12TC
功能描述:IC OTP 4MBIT 120NS 32TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT27BV040-12TI
功能描述:可擦除可编程ROM 4Mb (512Kx8) OTP 2.7-3.6V 120ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
AT27BV040-12VC
功能描述:IC OTP 4MBIT 120NS 32VSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT27BV040-12VI
功能描述:可擦除可编程ROM 4Mb (512Kx8) OTP 2.7-3.6V 120ns RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92
