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P87C550EBAA Datasheet(PDF) 23 Page - NXP Semiconductors

Part # P87C550EBAA
Description  80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer
PDF  28 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P87C550EBAA Datasheet(HTML) 23 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
80C550/83C550/87C550
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer
1998 May 01
23
A0–A7
1
1
1
4–6MHz
+5V
PGM DATA
+12.75V
25 100
µs PULSES TO GROUND
0
1
0
A8–A11
P3
RST
P1.0
P1.1
XTAL2
XTAL1
VSS
VCC
P0
EA/VPP
ALE/PROG
PSEN
P2.7
P2.6
P2.0–P2.4
87C550
AVCC
AVSS
SU00205
Figure 17. Programming Configuration
ALE/PROG:
ALE/PROG:
1
0
1
0
25 PULSES
100
µs+10
10
µs MIN
SU00018
Figure 18. PROG Waveform
A0–A7
1
1
1
4–6MHz
+5V
PGM Data
1
1
0
0 ENABLE
0
A8–A11
P3
RST
P1.0
P1.1
XTAL2
XTAL1
VSS
VCC
P0
EA/VPP
ALE/PROG
PSEN
P2.7
P2.6
P2.0–P2.4
87C550
AVCC
AVSS
SU00206
Figure 19. Program Verification



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