參數資料
型號： SC87C51CYF40
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： CMOS single-chip 8-bit microcontrollers
中文描述： 8-BIT, UVPROM, 16.5 MHz, MICROCONTROLLER, CDIP40
文件頁數： 19/30頁
文件大?。?/td> 411K
代理商： SC87C51CYF40
Philips Semiconductors
Product specification
80C31/80C51/87C51
CMOS single-chip 8-bit microcontrollers
1996 Aug 16
19
V
CC
–0.5
0.45V
0.2V
CC
+0.9
0.2V
CC
–0.1
NOTE:
AC inputs during testing are driven at V
–0.5 for a logic ‘1’ and 0.45V for a logic ‘0’.
Timing measurements are made at V
IH
min for a logic ‘1’ and V
IL
max for a logic ‘0’.
SU00010
Figure 6. AC Testing Input/Output
V
LOAD
V
LOAD
+0.1V
V
LOAD
–0.1V
V
OH
–0.1V
V
OL
+0.1V
NOTE:
For timing purposes, a port is no longer floating when a 100mV change from load voltage occurs,
and begins to float when a 100mV change from the loaded V
OH
/V
OL
level occurs. I
OH
/I
OL
≥
±
20mA.
TIMING
REFERENCE
POINTS
SU00011
Figure 7. Float Waveform
40
35
30
25
20
15
10
5
4MHz
8MHz
12MHz
16MHz
FREQ AT XTAL1
MAX ACTIVE MODE
(I
CCMAX
= 1.43 freq + 1.9)
TYP ACTIVE MODE
MAX IDLE MODE
TYP IDLE MODE
I
CC
mA
20MHz
24MHz
45
30MHz
33MHz
SU00012
Figure 8. I
CC
vs. FREQ
Valid only within frequency specifications of the device under test
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