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P89C51RB2BA датащи(PDF) 37 Page - NXP Semiconductors

номер детали P89C51RB2BA
подробное описание детали  80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
PDF  52 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C51RB2BA датащи(HTML) 37 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
37
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 34. 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 35. Float Waveform
2
4
6
8
10
12
14
16
18
60
50
40
30
20
10
Frequency at XTAL1 (MHz, 6 clock mode)
ICC (mA)
89C51RB2/RC2/RD2
MAXIMUM ACTIVE ICC
TYPICAL ACTIVE ICC
MAXIMUM IDLE
TYPICAL IDLE
SU01300
Figure 36. ICC vs. FREQ
Valid only within frequency specifications of the device under test
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’.
SU00010
Figure 37. AC Testing Input/Output



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