Datasheet > 存储 > OTP ROM> AT27C400-12RI

AT27C400-12RI

更新时间： 2024-02-01 19:35:42

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	188K
描述
4-Megabit 256K x 16 or 512K x 8 OTP EPROM

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技术参数
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AT27C400-12RI 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：	5.91	最长访问时间：	120 ns
其他特性：	CONFIGURABLE AS 256K X 16; 2KV ESD PROTECTION	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：	4194304 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：	262144 words
字数代码：	256000	工作模式：	ASYNCHRONOUS
最高工作温度：	85 °C	最低工作温度：	-40 °C
组织：	256KX16	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：	5 V
认证状态：	Not Qualified	座面最大高度：	1.2 mm
最大待机电流：	0.0001 A	子类别：	OTP ROMs
最大压摆率：	0.04 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 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

AT27C400-12RI 数据手册

System Considerations

Description (Continued)

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 AT27C400 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 AT27C400 is logi-

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

wide mode, then with A-1 = V_ILthe lower 8 bits of the 16-bit

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

16-bit word are selected.

In read mode, the AT27C400 typically consumes 15 mA.

Standby mode supply current is typically less than 10 µA.

The AT27C400 is available in industry standard

JEDEC-approved one-time programmable (OTP) PDIP,

SOIC (SOP), and TSOP packages. The device features

two-line control (CE, OE) to eliminate bus contention in

high-speed systems.

With high density 256K word or 512K byte storage capabil-

ity, the AT27C400 allows firmware to be stored reliably and

to be accessed by the system without the delays of mass

storage media.

Atmel’s AT27C400 has additional features that ensure high

quality and efficient production use. The Rapid^™Program-

ming Algorithm reduces the time required to program the

part and guarantees reliable programming. Programming

time is typically only 50 µs/word. The Integrated Product

Identification Code electronically identifies the device and

manufacturer. This feature is used by industry standard

programming equipment to select the proper programming

algorithms and voltages.

AT27C400

123 4 5 6 7...10

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与AT27C400-12RI相关器件

型号	品牌	描述	获取价格	数据表
AT27C400-12TC	ATMEL	4-Megabit 256K x 16 or 512K x 8 OTP EPROM	获取价格
AT27C400-12TI	ATMEL	4-Megabit 256K x 16 or 512K x 8 OTP EPROM	获取价格
AT27C400-15	ATMEL	4-Megabit 256K x 16 or 512K x 8 OTP EPROM	获取价格
AT27C400-15JC	ATMEL	OTP ROM, 256KX16, 150ns, CMOS, PQCC44, PLASTIC, MS-018AC, LCC-44	获取价格
AT27C400-15JI	ATMEL	OTP ROM, 256KX16, 150ns, CMOS, PQCC44, PLASTIC, MS-018AC, LCC-44	获取价格
AT27C400-15PC	ATMEL	4-Megabit 256K x 16 or 512K x 8 OTP EPROM	获取价格

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