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P89C51RB2BA датащи(PDF) 38 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) 38 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
38
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.
SU00011
Figure 38. Float Waveform
VCC
P0
EA
RST
XTAL1
XTAL2
VSS
VCC
VCC
VCC
ICC
(NC)
CLOCK SIGNAL
89C51RB2
89C51RC2
89C51RD2
SU01294
Figure 39. ICC Test Condition, Active Mode.
All other pins are disconnected
VCC
P0
RST
XTAL1
XTAL2
VSS
VCC
VCC
ICC
(NC)
CLOCK SIGNAL
EA
SU01295
89C51RB2
89C51RC2
89C51RD2
Figure 40. ICC Test Condition, Idle Mode.
All other pins are disconnected
VCC–0.5
0.5V
tCHCL
tCLCL
tCLCH
tCLCX
tCHCX
SU01297
Figure 41. Clock Signal Waveform for ICC Tests in Active
and Idle Modes.
tCLCL = tCHCL = 10 ns
VCC
P0
RST
XTAL1
XTAL2
VSS
VCC
VCC
ICC
(NC)
EA
SU01296
89C51RB2
89C51RC2
89C51RD2
Figure 42. ICC Test Condition, Power Down Mode.
All other pins are disconnected; VCC = 2V to 5.5V



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