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P89C668 датащи(PDF) 84 Page - NXP Semiconductors

номер детали P89C668
подробное описание детали  80C51 8-bit Flash microcontroller family
PDF  89 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C668 датащи(HTML) 84 Page - NXP Semiconductors

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Philips Semiconductors
Product data
P89C660/P89C662/P89C664/
P89C668
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2002 Oct 28
84
tRD
tSU;STA
tBUF
tSU;STO
0.7 VCC
0.3 VCC
0.7 VCC
0.3 VCC
tFD
tRC
tFC
tHIGH
tLOW
tHD;STA
tSU;DAT1
tHD;DAT
tSU;DAT2
tSU;DAT3
START condition
repeated START condition
SDA
(INPUT/OUTPUT)
SCL
(INPUT/OUTPUT)
STOP condition
START or repeated START condition
SU00107A
Figure 65. Timing SI01 (I2C) Interface
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 66. 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.
SU00011
Figure 67. Float Waveform



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