Datasheet > AT27BV256-70JU-T

AT27BV256-70JU-T

更新时间： 2024-02-29 08:20:37

品牌	Logo	应用领域
美国微芯 - MICROCHIP		OTP只读存储器内存集成电路
页数	文件大小	规格书
12页	768K
描述
IC OTP 256KBIT 70NS 32PLCC

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技术参数
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AT27BV256-70JU-T 技术参数

生命周期：	Active	包装说明：	LCC-32
Reach Compliance Code：	compliant	风险等级：	0.99
最长访问时间：	70 ns	其他特性：	ALSO OPERATES AT 5V SUPPLY
JESD-30 代码：	R-PQCC-J32	长度：	13.97 mm
内存密度：	262144 bit	内存集成电路类型：	OTP ROM
内存宽度：	8	功能数量：	1
端子数量：	32	字数：	32768 words
字数代码：	32000	工作模式：	ASYNCHRONOUS
最高工作温度：	85 °C	最低工作温度：	-40 °C
组织：	32KX8	封装主体材料：	PLASTIC/EPOXY
封装代码：	QCCJ	封装形状：	RECTANGULAR
封装形式：	CHIP CARRIER	并行/串行：	PARALLEL
座面最大高度：	3.556 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
宽度：	11.43 mm

AT27BV256-70JU-T 数据手册

Features

• Fast read access time – 70ns

• Dual voltage range operation

– Unregulated battery power supply range, 2.7V to 3.6V, or

– Standard power supply range, 5V  10%

• Pin compatible with JEDEC standard Atmel^®AT27C256R

• Low-power CMOS operation

– 20µA max standby (less than 1µA, typical) for V_CC= 3.6V

– 29mW max active at 5MHz for V_CC= 3.6V

• JEDEC standard surface mount package

– 32-lead PLCC

256K (32K x 8)

UnregulatedBattery

Voltage, High-

speed, One-time

Programmable,

• 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

Read-only Memory

Atmel AT27BV256

• Green (Pb/halide-free) packaging option

Description

The Atmel AT27BV256 is a high-performance, low-power, low-voltage, 262,144-bit, one-

time programmable, read-only memory (OTP EPROM) organized as 32K by 8 bits. It

requires only one supply in the range of 2.7V to 3.6V in normal read mode operation, mak-

ing 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 word can be accessed in

less than 70ns. With a typical power dissipation of only 18mW at 5 MHz and V_CC= 3V, the

AT27BV256 consumes less than one-fifth the power of a standard, 5V EPROM.

Standby mode supply current is typically less than 1µA at 3V. The AT27BV256 simplifies

system design and stretches battery lifetime even further by eliminating the need for power

supply regulation.

The AT27BV256 is available in an industry-standard, JEDEC-approved ,one-time program-

mable (OTP) PLCC package. All devices feature two-line control (CE, OE) to give

designers the flexibility to prevent bus contention.

The AT27BV256 operating with V_CCat 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 AT27BV256 has additional features to ensure high quality and efficient production use.

The rapid programming algorithm reduces the time required to program the part and guar-

antees reliable programming. Programming time is typically only 100µs/byte. The

integrated product identification code electronically identifies the device and manufacturer.

0601F–EPROM–4/11

12 3 4 5 6 7...12

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与AT27BV256-70JU-T相关器件

型号	品牌	描述	获取价格	数据表
AT27BV256-70RC	ATMEL	256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM	获取价格
AT27BV256-70RI	ATMEL	256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM	获取价格
AT27BV256-70RJ	ATMEL	OTP ROM, 32KX8, 70ns, CMOS, PDSO28, 0.330 INCH, PLASTIC, SOIC-28	获取价格
AT27BV256-70RU	ATMEL	256K (32K x 8) Unregulated Battery-Voltage High-Speed OTP EPROM	获取价格
AT27BV256-70TC	ATMEL	256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM	获取价格
AT27BV256-70TI	ATMEL	256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM	获取价格

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