- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376551 > D87C51FB IC-8-BIT CMOS CPU PDF資料下載
參數(shù)資料
| 型號(hào)： | D87C51FB |
| 英文描述： | IC-8-BIT CMOS CPU |
| 中文描述： | 集成電路8位CMOS處理器 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大小： | 259K |
| 代理商： | D87C51FB |
8XC51FX
ONCE MODE
The ONCE (‘‘On-Circuit Emulation’’) Mode facilitates
testing
and
debugging
8XC51FX without the 8XC51FX having to be re-
moved from the circuit. The ONCE Mode is invoked
by:
of
systems
using
the
1) Pull ALE low while the device is in reset and
PSEN is high;
2) Hold ALE low as RST is deactivated.
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.
8XC51FX EXPRESS
The Intel EXPRESS system offers enhancements to
the operational specifications of the MCS-51 family
of microcontrollers. These EXPRESS products are
designed to meet the needs of those applications
whose operating requirements exceed commercial
standards.
The EXPRESS program includes the commercial
standard temperature range with burn-in and an ex-
tended temperature range with or without burn-in.
With the commercial standard temperature range,
operational characteristics are guaranteed over the
temperature range of 0
§
C to 70
§
C. With the extend-
ed temperature range option, operational character-
istics are guaranteed over the range of
b
40
§
C to
a
85
§
C.
The optional burn-in is dynamic for a minimum time
of 168 hours at 125
§
C with V
CC
e
6.9V
g
0.25V,
following guidelines in MlL-STD-883, Method 1015.
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.
For the extended temperature range option, this
data sheet specifies the parameters which deviate
from their commercial temperature range limits.
NOTE:
Intel offers Express Temperature specifica-
tions for all 8XC51FX speed options except
for 33 MHz.
Table 3. Prefix Identification
Prefix
Package Type
Temperature Range
Burn-In
D
Cerdip
Commercial
No
N
PLCC
Commercial
No
P
Plastic
Commercial
No
S
QFP
Commercial
No
LD
Cerdip
Extended
Yes
LN
PLCC
Extended
Yes
LP
Plastic
Extended
Yes
LS
QFP
Extended
Yes
TD
Cerdip
Extended
No
TN
PLCC
Extended
No
TP
Plastic
Extended
No
TS
QFP
Extended
No
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.
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D87C51 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| D80C51 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| D882SS | NPN EPITAXIAL SILICON TRANSISTOR |
| D882 | TO-126 Plastic-Encapsulate Transistors |
| D8LC40 | Super Fast Recovery Rectifiers (400V 8A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| D87C51FB-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。