參數(shù)資料
型號(hào)： 935262611557
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
封裝： PLASTIC, QFP-44
文件頁(yè)數(shù)： 18/35頁(yè)
文件大小： 250K
代理商： 935262611557
Philips Semiconductors
Product specification
89C51/89C52/89C54/89C58
80C51 8-bit microcontroller family
4K/8K/16K/32K Flash
1999 Oct 27
25
VCC–0.5
0.45V
0.2VCC+0.9
0.2VCC–0.1
NOTE:
AC inputs during testing are driven at VCC –0.5 for a logic ‘1’ and 0.45V for a logic ‘0’.
Timing measurements are made at VIH min for a logic ‘1’ and VIL max for a logic ‘0’.
SU00717
Figure 19. AC Testing Input/Output
VLOAD
VLOAD+0.1V
VLOAD–0.1V
VOH–0.1V
VOL+0.1V
NOTE:
TIMING
REFERENCE
POINTS
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
VOH/VOL level occurs. IOH/IOL ≥ ±20mA.
SU00718
Figure 20. Float Waveform
4
8
12
16
20
24
28
32
36
60
50
40
30
20
10
Frequency at XTAL1 (MHz)
ICC (mA)
SU01056
Icc IDLE MODE (TYP.)
Icc MAX ACTIVE MODE (TYP.)
Icc MAX. ACTIVE MODE
Icc MAX. IDLE MODE
Figure 21. ICC vs. FREQ
Valid only within frequency specifications of the device under test
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