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P87C51MB2 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. P87C51MB2
Description  80C51 8-bit microcontroller family with extended memory
Download  34 Pages
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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P87C51MB2 Datasheet(HTML) 5 Page - NXP Semiconductors

 
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2001 Apr 06
5
Philips Semiconductors
Preliminary specification
P87C51MB2/P87C51MC2
80C51 8-bit microcontroller family with extended memory
64KB/96KB OTP with 2KB/3KB RAM
PIN CONFIGURATION
1. Pins 1, 12, 23, 34 were not internally connected in some derivatives. Please refer to section on Pin Descriptions for details.
PLCC44
7
17
39
29
18
28
6
40
PLASTIC
LEADED
CHIP CARRIER
1
Pin Function
1
(NC/VSS)
1
2
P1.0/T2
3
P1.1/T2EX
4
P1.2/ECI
5
P1.3/CEX0
6
P1.4/CEX1/MOSI
7
P1.5/CEX2/SPICLK
8
P1.6/CEX3
9
P1.7/CEX4
10
RST
11
P3.0/RXD0
12
P4.0/RXD1/MISO1
13
P3.1/TXD0
14
P3.2/INT0
15
P3.3/INT1
16
P3.4/T0
17
P3.5/T1
18
P3.6/WR
19
P3.7/RD
20
XTAL2
21
XTAL1
22
VSS
Pin Function
23
(NC/VDD)
1
24
P2.0/A8/A16
25
P2.1/A9/A17
26
P2.2/A10/A18
27
P2.3/A11/A19
28
P2.4/A12/A20
29
P2.5/A13/A21
30
P2.6/A14/A22
31
P2.7/A15
32
PSEN
33
ALE
34
P4.1/TXD1/SS1
35
EA/Vpp
36
P0.7/AD7
37
P0.6/AD6
38
P0.5/AD5
39
P0.4/AD4
40
P0.3/AD3
41
P0.2/AD2
42
P0.1/AD1
43
P0.0/AD0
44
VDD


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