Datasheet > 存储 > OTP ROM> AT27BV800-15TI

AT27BV800-15TI

更新时间： 2024-02-25 15:41:57

品牌	Logo	应用领域
爱特美尔 - ATMEL		电池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
11页	264K
描述
8-Megabit 512K x 16 or 1024K x 8 Unregulated Battery-Voltage High Speed OTP EPROM

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技术参数
数据手册

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AT27BV800-15TI 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	TSOP1	包装说明：	TSOP1, TSSOP48,.8,20
针数：	48	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.32.00.71
风险等级：	5.8	最长访问时间：	150 ns
其他特性：	CAN ALSO BE OPERATED AT 5V	备用内存宽度：	8
I/O 类型：	COMMON	JESD-30 代码：	R-PDSO-G48
JESD-609代码：	e0	长度：	18.4 mm
内存密度：	8388608 bit	内存集成电路类型：	OTP ROM
内存宽度：	16	功能数量：	1
端子数量：	48	字数：	524288 words
字数代码：	512000	工作模式：	ASYNCHRONOUS
最高工作温度：	85 °C	最低工作温度：	-40 °C
组织：	512KX16	输出特性：	3-STATE
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSOP1
封装等效代码：	TSSOP48,.8,20	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE	并行/串行：	PARALLEL
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	1.2 mm
最大待机电流：	0.00002 A	子类别：	OTP ROMs
最大压摆率：	0.04 mA	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	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	12 mm	Base Number Matches：	1

AT27BV800-15TI 数据手册

mode operation. The x16 organization makes this part ideal

for portable and hand held 16- and 32-bit microprocessor

based systems using either regulated or unregulated bat-

tery power.

The AT27BV800 operating with V_CCat 3.0V produces TTL

level outputs that are compatible with standard TTL logic

devices operating at V_CC= 5V. At V_CC= 2.7V, the part is

compatible with JEDEC approved low voltage battery oper-

ation (LVBO) interface specifications. The device is also

capable of standard 5-volt operation making it ideally suited

for dual supply range systems or card products that are

pluggable in both 3-volt and 5-volt hosts.

Atmel’s innovative design techniques provide fast speeds

that rival 5V parts while keeping the low power consump-

tion of a 3V supply. At V_CC= 2.7V, any word can be

accessed in less than 120ns. With a typical power dissipa-

tion of only 10 mW at 5mHZ and V_CC= 3V, the AT27BV800

consumes less than one fifth the power of a standard 5V

EPROM.

Atmel’s AT27BV800 has additional features that ensure

high quality and efficient production use. The Rapid^TMPro-

gramming Algorithm reduces the time required to program

the part and guarantees reliable programming. Program-

ming time is typically only 50µs/word. The Integrated Prod-

uct Identification Code electronically identifies the device

and manufacturer. This feature is used by industry standard

programming equipment to select the proper programming

equipment and voltages. The AT27BV800 programs

exactly the same way as a standard 5V AT27C800 and

uses the same programming equipment.

Standby mode supply current is typically less than 1 mA at

3V. The AT27BV800 simplifies system design and

stretches battery lifetime even further by eliminating the

need for power supply regulation.

The AT27BV800 can be organized as either word-wide or

byte-wide. The organization is selected via the BYTE/V_PP

pin. When BYTE/V_PPis asserted high (V_IH), the word-wide

organization is selected and the O15/A-1 pin is used for

O15 data output. When BYTE/V_PPis asserted low (V_IL),the

byte wide organization is selected and the O15/A-1 pin is

used for the address pin A-1. When the AT27BV800 is logi-

cally regarded as x16 (word-wide), but read in the byte-

wide mode, then with A-1=V_ILthe lower eight bits of the 16

bit word are selected with A-1 =V_IHthe upper 8 bits of the

16-bit word are selected.

System Considerations

Switching between active and standby conditions via the

Chip Enable pin may produce transient voltage excursions.

Unless accommodated by the system design, these tran-

sients may exceed data sheet limits, resulting in device

non-conformance. At a minimum, a 0.1 µF high frequency,

low inherent inductance, ceramic capacitor should be uti-

lized for each device. This capacitor should be connected

between the V_CCand Ground terminals of the device, as

close to the device as possible. Additionally, to stabilize the

supply voltage level on printed circuit boards with large

EPROM arrays, a 4.7 µF bulk electrolytic capacitor should

be utilized, again connected between the V_CCand Ground

terminals. This capacitor should be positioned as close as

possible to the point where the power supply is connected

to the array.

The AT27BV800 is available in industry standard JEDEC-

approved one-time programmable (OTP) PLCC, SOIC

(SOP), and TSOP packages. The device features two-line

control(CE,OE) to eliminate bus contention in high-speed

systems.

With high density 512K word or 1024K-bit storage capabil-

ity, the AT27BV800 allows firmware to be to be stored reli-

ably and to be accessed by the system without the delays

of mass storage media.

Block Diagram

AT27BV800

123 4 5 6 7...11

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