Datasheet > CY7C265-50LMB

CY7C265-50LMB

更新时间： 2024-09-16 23:45:39

品牌	Logo	应用领域
其他 - ETC		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
13页	365K
描述
EPROM\|8KX8\|CMOS\|LLCC\|28PIN\|CERAMIC

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

CY7C265-50LMB 数据手册

CY7C265

8K x 8 Registered PROM

are enabled. One pin on the CY7C265 is programmed to per-

form either the enable or the initialize function.

Features

• CMOS for optimum speed/power

• High speed (commercial and military)

— 15 ns address set-up

If the asynchronous enable (E) is being used, the outputs may

be disabled at any time by switching the enable to a logic

HIGH, and may be returned to the active state by switching the

enable to a logic LOW.

— 12 ns clock to output

• Low power

If the synchronous enable (ES) is being used, the outputs will

go to the OFF or high-impedance state upon the next positive

clock edge after the synchronous enable input is switched to a

HIGH level. If the synchronous enable pin is switched to a logic

LOW, the subsequent positive clock edge will return the output

tothe activestate. Followingapositive clock edge, theaddress

and synchronous enable inputs are free to change since no

change in the output will occur until the next LOW-to-HIGH

transitionof theclock. This uniquefeatureallows the CY7C265

decoders and sense amplifiers to access the next location

whilepreviously addresseddataremains stable on theoutputs.

— 660 mW (commercial)

— 770 mW (military)

• On-chip edge-triggered registers

— Ideal for pipelined microprogrammed systems

• EPROM technology

— 100% programmable

— Reprogrammable (7C265W)

• 5V ±10% V_CC, commercial and military

• Capable of withstanding >2001V static discharge

• Slim 28-pin, 300-mil plastic or hermetic DIP

If the E/I pin is used for INIT (asynchronous), then the outputs

are permanently enabled. The initialize function is useful dur-

ing power-up and time-out sequences, and can facilitate im-

plementation of other sophisticated functions such as a built-in

“jump start” address. When activated, the initialize control in-

put causes the contents of a user programmed 8193rd 8-bit

word to be loaded into the on-chip register. Each bit is pro-

grammable and the initialize function can be used to load any

desired combination of 1’s and 0’s into the register. In the un-

programmed state, activating INIT will generate a register

clear (all outputs LOW). If all the bits of the initialize word are

programmed to be a 1, activating INIT performs a register pre-

set (all outputs HIGH).

Functional Description

The CY7C265 is a 8192 x 8 registered PROM. It is organized

as 8,192 words by 8 bits wide, and has a pipeline output reg-

ister. In addition, the device features a programmable initialize

byte that may be loaded into the pipeline register with the ini-

tialize signal. The programmable initialize byte is the 8,193rd

byte in the PROM and its value is programmed at the time of

use.

Packaged in 28 pins, the PROM has 13 address signals (A₀

through A₁₂), 8 data out signals (O₀through O₇), E/I (enable

or initialize), and CLOCK.

Applying a LOW to the INIT input causes an immediate load of

the programmed initialize word into the pipeline register and

onto the outputs. The INIT LOW disables clock and must return

HIGH to enable clock independent of all other inputs, including

the clock.

CLOCK functions as a pipeline clock, loading the contents of

the addressed memory location into the pipeline register on

each rising edge. The data will appear on the outputs if they

Cypress Semiconductor Corporation

Document #: 38-04012 Rev. **

•

3901 North First Street

•

San Jose

•

CA 95134

•

408-943-2600

Revised March 14, 2002

12 3 4 5 6 7...13

中文翻译

下载PDF

与CY7C265-50LMB相关器件

型号	品牌	获取价格	描述	数据表
CY7C265-50PI	CYPRESS	获取价格	OTP ROM, 8KX8, 25ns, CMOS, PDIP28, 0.300 INCH, SLIM, PLASTIC, DIP-28
CY7C265-50QC	ETC	获取价格	x8 EPROM
CY7C265-50WMB	CYPRESS	获取价格	UVPROM, 8KX8, 25ns, CMOS, CDIP28, 0.300 INCH, SLIM, HERMETIC SEALED, WINDOWED, CERDIP-28
CY7C265-60DC	ETC	获取价格	x8 EPROM
CY7C265-60JC	ETC	获取价格	x8 EPROM
CY7C265-60JCR	CYPRESS	获取价格	OTP ROM, 8KX8, 25ns, CMOS, PQCC28, PLASTIC, LCC-28
CY7C265-60JCT	CYPRESS	获取价格	OTP ROM, 8KX8, CMOS, PQCC28, PLASTIC, LCC-28
CY7C265-60LC	ETC	获取价格	x8 EPROM
CY7C265-60LMB	ETC	获取价格	x8 EPROM
CY7C265-60PC	ETC	获取价格	x8 EPROM

与CY7C265-50LMB相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

16
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

14
SL74HC10N：高性能三输入与非门解析
2024-09-03

93
AIC1781A 电池充电控制器深度解析
2024-09-03

82

产品中心

服务支持

精选活动

关于我们

帮助中心

CY7C265-50LMB

CY7C265-50LMB 数据手册

与CY7C265-50LMB相关器件

与CY7C265-50LMB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

CY7C265-50LMB

CY7C265-50LMB 数据手册

与CY7C265-50LMB相关器件

与CY7C265-50LMB相关文章

您还可以找

您在本页遇到什么问题？