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87C54 Datasheet(PDF) 1 Page - NXP Semiconductors

Part No. 87C54
Description  CMOS single-chip 8-bit microcontrollers
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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Philips Semiconductors
Preliminary specification
87C54/87C58
CMOS single-chip 8-bit microcontrollers
3-215
1996 Aug 16
DESCRIPTION
The 87C54/87C58 Single-Chip 8-Bit Microcontroller is manufactured
in an advanced CMOS process and is a derivative of the 80C51
microcontroller family. The 87C54/87C58 has the same instruction
set as the 80C51.
This device provides architectural enhancements that make it
applicable in a variety of applications for general control systems.
The 87C58 contains 32k
× 8 EPROM memory, and the 87C54
contains 16k
× 8 EPROM memory, a volatile 256 × 8 read/write data
memory, four 8-bit I/O ports, three 16-bit timer/event counters, a
multi-source, two-priority-level, nested interrupt structure, an
enhanced UART and on-chip oscillator and timing circuits. For
systems that require extra capability, the 87C54/87C58 can be
expanded using standard TTL compatible memories and logic.
Its added features make it an even more powerful microcontroller for
applications that require pulse width modulation, high-speed I/O and
up/down counting capabilities such as motor control. It also has a
more versatile serial channel that facilitates multiprocessor
communications.
See 80C52/54/58 datasheet for ROM device specification.
FEATURES
80C51 central processing unit
16k × 8 EPROM expandable externally to 64k bytes (87C54)
16k × 8 EPROM (87C54) and
32k
× 8 EPROM expandable externally to 64k bytes (87C58)
– Improved Quick Pulse programming algorithm
– Two level program security system
– 32 byte encryption array
256 × 8 RAM, expandable externally to 64k bytes
Three 16-bit timer/counters
– T2 is an up/down counter
Four 8-bit I/O ports
Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
Power control modes
– Idle mode
– Power-down mode
Once (On Circuit Emulation) Mode
Five package styles
OTP package available
Programmable clock out
6 interrupt sources
2 level priority
PIN CONFIGURATIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
T2/P1.0
T2EX/P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
RST
RxD/P3.0
TxD/P3.1
INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
P1.7
WR/P3.6
RD/P3.7
XTAL2
XTAL1
VSS
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
PSEN
ALE/PROG
EA/VPP
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
VCC
DUAL
IN-LINE
PACKAGE
SU00748




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