Datasheet > 83C51FC-33

83C51FC-33

更新时间： 2022-12-01 20:01:58

品牌	Logo	应用领域
英特尔 - INTEL		微控制器
页数	文件大小	规格书
20页	241K
描述
Microcontroller,

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83C51FC-33 数据手册

8XC51FX

designed to meet the needs of those applications

whose operating requirements exceed commercial

standards.

ONCE MODE

The ONCE (‘‘On-Circuit Emulation’’) Mode facilitates

testing and debugging of systems using the

8XC51FX without the 8XC51FX having to be re-

moved from the circuit. The ONCE Mode is invoked

by:

The EXPRESS program includes the commercial

standard temperature range with burn-in and an ex-

tended temperature range with or without burn-in.

1) Pull ALE low while the device is in reset and

PSEN is high;

With the commercial standard temperature range,

operational characteristics are guaranteed over the

temperature range of 0 C to 70 C. With the extend-

2) Hold ALE low as RST is deactivated.

ed temperature range option, operational character-

istics are guaranteed over the range of 40 C to

While the device is in ONCE Mode, the Port 0 pins

float, and the other port pins and ALE and PSEN are

weakly pulled high. The oscillator circuit remains ac-

tive. While the 8XC51FX is in this mode, an emulator

or test CPU can be used to drive the circuit. Normal

operation is restored when a normal reset is applied.

85 C.

The optional burn-in is dynamic for a minimum time

following guidelines in MlL-STD-883, Method 1015.

0.25V,

of 168 hours at 125 C with V

6.9V

Package types and EXPRESS versions are identified

by a one- or two-letter prefix to the part number. The

prefixes are listed in Table 3.

8XC51FX EXPRESS

The Intel EXPRESS system offers enhancements to

the operational specifications of the MCS-51 family

of microcontrollers. These EXPRESS products are

For the extended temperature range option, this

data sheet specifies the parameters which deviate

from their commercial temperature range limits.

Table 3. Prefix Identification

Prefix

Package Type

Temperature Range

Commercial

Extended

Burn-In

Cerdip

PLCC

Plastic

QFP

Cerdip

PLCC

Plastic

QFP

Yes

Extended

Cerdip

PLCC

Plastic

QFP

Extended

NOTE:

Contact distributor or local sales office to match EXPRESS prefix with proper device.

EXAMPLES:

P87C51FC indicates 87C51FC in a plastic package and specified for commercial temperature range, without burn-in.

LD87C51FC indicates 87C51FC in a cerdip package and specified for extended temperature range with burn-in.

1...4 5 678 9 10...20

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