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Last update: 14 July 2005

IC number:87C54
IC function:8-bit microcontroller, MCS51 family

Component documentation
IC numberManufacturerDocumentation
87C54IntelMCS51 Web page, MCS51 Microcontroller Family User's Manual (PDF), Datasheet (PDF), Specification update (PDF)

Device versions
IC numberPackageROM sizeRAM size
P87C5440-pin Plastic DIP16k bytes256 bytes

Programmed components
IC numberCBM part numberCBM part descriptionChip description
87C54391747-02CD V3.1 (C)(M)1993 N.V. Philips, Commodore

Positions
DevicePositionPackageSoftware
DIP391747-02

Pinout
PinTypeName
1I/OP1.0 (T2)
2I/OP1.1 (T2EX)
3I/OP1.2
4I/OP1.3
5I/OP1.4
6I/OP1.5
7I/OP1.6
8I/OP1.7
9InputRESET
10I/OP3.0 (RXD)
11I/OP3.1 (TXD)
12I/OP3.2 (INT0_)
13I/OP3.3 (INT1_)
14I/OP3.4 (T0)
15I/OP3.5 (T1)
16I/OP3.6 (WR_)
17I/OP3.7 (RD_)
18OutputXTAL2
19InputXTAL1
20PowerVSS
21I/OP2.0 (A8)
22I/OP2.1 (A9)
23I/OP2.2 (A10)
24I/OP2.3 (A11)
25I/OP2.4 (A12)
26I/OP2.5 (A13)
27I/OP2.6 (A14)
28I/OP2.7 (A15)
29OutputPSEN_
30InputALE/PROG_
31InputEA_/VPP
32I/OP0.0 (AD0)
33I/OP0.1 (AD1)
34I/OP0.2 (AD2)
35I/OP0.3 (AD3)
36I/OP0.4 (AD4)
37I/OP0.5 (AD5)
38I/OP0.6 (AD6)
39I/OP0.7 (AD7)
40PowerVCC

Copyright © 2004 Ronald van Dijk - All rights reserved