參數(shù)資料
型號： LN87C51FA
廠商： INTEL CORP
元件分類： 微控制器/微處理器
英文描述： CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
中文描述： 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 3/18頁
文件大?。?/td> 250K
代理商： LN87C51FA
AUTOMOTIVE 87C51FA/FB/FC/FC-20
range of
b
40
§
C to
a
85
§
C ambient. For the automo-
tive temperature range option, operational charac-
teristics are guaranteed over the temperature range
of
b
40
§
C to
a
125
§
C ambient. The automotive, ex-
tended, and commercial temperature versions of the
MCS-51 product families are available with or with-
out burn-in options.
As shown in Figure 2 temperature, burn-in, and
package options are identified by a one- or two-letter
prefix to the part number.
PIN DESCRIPTIONS
V
CC
:
Supply voltage.
V
SS
:
Circuit ground.
V
SS1
:
Secondary ground (in PLCC only). Provided to
reduce ground bounce and improve power supply
by-passing.
NOTE:
This pin is NOT a substitute for V
SS
pin (pin 22).
Port 0:
Port 0 is an 8-bit, open drain, bidirectional
I/O port. As an output port each pin can sink several
LS TTL inputs. Port 0 pins that have 1’s written to
them float, and in that state can be used as high-im-
pedance inputs.
270961–2
*
Example:
AN87C51FA/FB/FC indicates an automotive temperature range version of the 87C51FA/FB/FC in a PLCC package
with 16 Kbyte/32 Kbyte EPROM program memory.
Figure 2. Package Options
Table 1. Temperature Options
Temperature
Classification
Temperature
Designation
Operating
Temperature
§
C Ambient
Burn-In
Options
Extended
T
L
b
40 to
a
85
b
40 to
a
85
Standard
Extended
Automotive
A
B
b
40 to
a
125
b
40 to
a
125
Standard
Extended
3
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