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SC87C51SBAA View Datasheet(PDF) - Philips Electronics

Part NameDescriptionManufacturer
SC87C51SBAA 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage (2.7V–5.5V), low power, high speed (33 MHz) Philips
Philips Electronics Philips
SC87C51SBAA Datasheet PDF : 38 Pages
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Philips Semiconductors
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
Product specification
80C51/87C51/80C31
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’.
Figure 19. AC Testing Input/Output
SU00717
VLOAD
VLOAD+0.1V
VLOAD–0.1V
TIMING
REFERENCE
POINTS
VOH–0.1V
VOL+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
VOH/VOL level occurs. IOH/IOL ≥ ±20mA.
SU00718
Figure 20. Float Waveform
35
30
25
20 ICCMAX ACTIVE MODE
(8XC51RD+)
ICCMAX = 0.9 X FREQ + 2.1
MAX ACTIVE
MODE (EXCEPT
8XC51RD+)
ICCMAX = 0.9 X
FREQ. + 1.1
15
TYP ACTIVE MODE
10
MAX IDLE MODE
5
TYP IDLE MODE
4
8
12 16 20 24 28 32 36
FREQ AT XTAL1 (MHz)
SU00837A
Figure 21. ICC vs. FREQ
Valid only within frequency specifications of the device under test
2000 Jan 20
27
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