Datasheet > CD40108

CD40108

更新时间： 2024-11-05 22:56:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
11页	160K
描述
CMOS 4 x 4 Multiport Register

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CD40108 数据手册

CD40108BMS

CMOS 4 x 4 Multiport Register

December 1992

Features

Description

• High Voltage Type (20V Rating)

• Four 4-Bit Registers

The CD40108BMS is a 4 x 4 multiport register containing

four 4-bit registers, write address decoder, two separate

read address decoders, and two 3-state output buses.

• One Input and Two Output Buses

• Unlimited Expansion in Bit and Word Directions

• Data Lines have latched Inputs

• 3-State Outputs

When the ENABLE input is low, the corresponding output

bus is switched, independently of the clock, to a high-imped-

ance state. The high-impedance third state provides the out-

puts with the capability of being connected to the bus lines in

a bus-organized system without the need for interface or

pull-up components.

• Separate Control of Each Bus, Allowing Simultaneous

Independent Reading of Any of Four Registers on Bus

A and Bus B and Independent Writing Into Any of the

Four Registers

When the WRITE ENABLE input is high, all data input lines

are latched on the positive transition of the CLOCK and the

data is entered into the word selected by the write address

lines. When WRITE ENABLE is low, the CLOCK is inhibited

and no new data is entered. In either case, the contents of

any word may be accessed via the read address lines inde-

pendent of the state of the CLOCK input.

• CD40108BMS is Pin-Compatible with Industry Type

MC14580

• Standardized Symmetrical Output Characteristics

• 100% Tested for Quiescent Current at 20V

The CD40108BMS is supplied in these 24-lead outline pack-

ages:

• Maximum Input Current of 1µA at 18V Over Full Pack-

age Temperature Range; 100nA at 18V and +25^oC

Braze Seal DIP

Ceramic Flatpack

H4V

H4P

• Noise Margin (Over Full Package/Temperature Range)

- 1V at VDD = 5V

Applications

- 2V at VDD = 10V

• Scratch-Pad Memories

• Arithmetic Units

• Data Storage

- 2.5V at VDD = 15V

• 5V, 10V and 15V Parametric Ratings

• Meets All Requirements of JEDEC Tentative Standard

No. 13B, “Standard Speciﬁcations for Description of

‘B’ Series CMOS Devices”

Pinout

Functional Diagram

WRITE

3-STATE A

CD40108BMS

TOP VIEW

ENABLE

VDD

Q3 B

Q2 B

DATA

INPUTS

WORD A

OUTPUT

23 Q1 B

22 Q0 B

3-STATE A

Q0 A

21 3-STATE B

20 D0

WRITE 0

Q1 A

WRITE 1

19 D1

Q2 A

18 D2

Q3 A

READ 1A

17 D3

WRITE 0

WRITE 1

WORD B

OUTPUT

READ 0A

16 CLOCK

15 WRITE ENABLE

14 READ 1A

13 READ 0A

READ 1B 10

READ 0B 11

VSS 12

READ 1B

READ 0B

3-STATE B

VDD = 24

VSS = 12

CLOCK

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

File Number 3356

7-25

12 3 4 5 6 7...11

中文翻译

下载PDF

与CD40108相关器件

型号	品牌	获取价格	描述	数据表
CD40108BMS	INTERSIL	获取价格	CMOS 4 x 4 Multiport Register
CD40109B	TI	获取价格	CMOS QUAD LOW-TO-HIGH VOLTAGE LEVEA SHIFTER
CD40109B_15	TI	获取价格	CMOS Quad Low-to-High Voltage Lever Shifter
CD40109BD	TI	获取价格	4000/14000/40000 SERIES, QUAD 1-BIT DRIVER, TRUE OUTPUT, CDIP16, CERAMIC, DIP-16
CD40109BD3	ROCHESTER	获取价格	Bus Driver, 4000/14000/40000 Series, 4-Func, 1-Bit, True Output, CMOS, CDIP16, PACKAGE-16
CD40109BDMSR	ETC	获取价格	Translator， Other/Special/Miscellaneous
CD40109BE	ROCHESTER	获取价格	Bus Driver, 4000/14000/40000 Series, 4-Func, 1-Bit, True Output, CMOS, PDIP16, PACKAGE-16
CD40109BE	TI	获取价格	CMOS QUAD LOW-TO-HIGH VOLTAGE LEVEA SHIFTER
CD40109BE98	RENESAS	获取价格	CD40109BE98
CD40109BEE4	TI	获取价格	CMOS Quad Low-to-high Voltage Level Shifter

与CD40108相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

14
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

12
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

36
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

33

产品中心

服务支持

精选活动

关于我们

帮助中心

CD40108

CD40108 数据手册

与CD40108相关器件

与CD40108相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CD40108

CD40108 数据手册

与CD40108相关器件

与CD40108相关文章

您还可以找

您在本页遇到什么问题？