Datasheet > 29109BRA

29109BRA

更新时间： 2024-01-08 18:04:40

品牌	Logo	应用领域
英特矽尔 - INTERSIL		内存集成电路静态存储器
页数	文件大小	规格书
7页	45K
描述
16K x 1 Asynchronous CMOS Static RAM

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技术参数
数据手册

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29109BRA 技术参数

生命周期：	Transferred	零件包装代码：	DIP
包装说明：	,	针数：	20
Reach Compliance Code：	unknown	ECCN代码：	3A001.A.2.C
HTS代码：	8542.32.00.41	风险等级：	5.72
最长访问时间：	70 ns	JESD-30 代码：	R-GDIP-T20
内存密度：	16384 bit	内存集成电路类型：	STANDARD SRAM
内存宽度：	1	功能数量：	1
端子数量：	20	字数：	16384 words
字数代码：	16000	工作模式：	ASYNCHRONOUS
最高工作温度：	125 °C	最低工作温度：	-55 °C
组织：	16KX1	封装主体材料：	CERAMIC, GLASS-SEALED
封装形状：	RECTANGULAR	封装形式：	IN-LINE
并行/串行：	SERIAL	认证状态：	Not Qualified
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：	NO
技术：	CMOS	温度等级：	MILITARY
端子形式：	THROUGH-HOLE	端子位置：	DUAL

29109BRA 数据手册

HM-65262

Timing Waveforms (Continued)

(8) TAVAX

(20) TAVEH

(21) TELEH

(19) TEHAX

(18) TAVEL

(22) TWLEH

(16) TWHQX

(24)

TEHDX

(23) TDVEH

(4) TELQX

(15) TWLQZ

(7) TEHQZ

NOTE:

1. In this mode, W rises after E. If W falls before E by a time exceeding TWLQZ (Max) TELQX (Min), and rises after E by a time exceeding

TEHQZ (Max) TWHQZ (Min), then Q will remain in the high impedance state throughout the cycle.

FIGURE 4. WRITE CYCLE 2: CONTROLLED BY E (EARLY WRITE)

Low Voltage Data Retention

Intersil CMOS RAMs are designed with battery backup in

mind. Data retention voltage and supply current are guaran-

teed over temperature. The following rules ensure data

retention:

the deselected state to keep the RAM outputs high

impedance, minimizing power dissipation.

3. Inputs which are to be held high (e.g., E) must be kept

between V

+0.3V and 70% of V

during the power

up and down transitions.

1. Chip Enable (E) must be held high during data retention;

within V

to V +0.3V.

4. The RAM can begin operation > 55ns after V

the minimum operating voltage (4.5V).

reaches

2. On RAMs which have selects or output enables (e.g., S,

G), one of the selects or output enables should be held in

DATA RETENTION

MODE

≥ 2.0V

4.5V

>55ns

-0.3V TO V

+0.3V

FIGURE 5. DATA RETENTION TIMING

6-6

1...3 4 567

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