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OM5232 Datasheet(PDF) 1 Page - NXP Semiconductors

Part No. OM5232
Description  CMOS single-chip 8-bit microcontroller
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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OM5232 Datasheet(HTML) 1 Page - NXP Semiconductors

 
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Philips Semiconductors
Product specification
OM5232
CMOS single-chip 8-bit microcontroller
1
December 1994
DESCRIPTION
The OM5232 Single-Chip 8-Bit Microcontroller is manufactured in an
advanced CMOS process and is a derivative of the 80C51
microcontroller family. The OM5232 has the same instruction set as
the 80C51.
See also:
– OM5202 — ROMless version
– OM5234 — 16K bytes mask programmable ROM
– OM5238 — 32K bytes mask programmable ROM
This device provides architectural enhancements that make it
applicable in a variety of applications for general control systems.
The OM5232 contains a non-volatile 8k
× 8 read-only program
memory, a volatile 256
× 8 read/write data memory, four 8-bit I/O
ports, two 16-bit timer/event counters (identical to the timers of the
80C51), a multi-source, two-priority-level, nested interrupt structure,
UART and on-chip oscillator and timing circuits. For systems that
require extra capability, the OM5232 can be expanded using
standard TTL compatible memories and logic.
The device also functions as an arithmetic processor having
facilities for both binary and BCD arithmetic plus bit-handling
capabilities. The instruction set consists of over 100 instructions: 49
one-byte, 45 two-byte and 17 three-byte. With a 16MHz crystal, 58%
of the instructions are executed in 0.75
µs and 40% in 1.5µs. Multiply
and divide instructions require 3
µs.
FEATURES
80C51 central processing unit
8k × 8 ROM, expandable externally to 64k bytes
256 × 8 RAM, expandable externally to 64k bytes
Two standard 16-bit timer/counters
Four 8-bit I/O ports
Two open drain I/O’s (P1.6, P1.7)
Full-duplex UART facilities
Power control modes
– Idle mode
– Power-down mode
ROM code protection
Extended frequency range: 1.2 to 16 MHz
Operating ambient temperature range: 0 to +70°C
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
P1.0
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
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
EA
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
VDD
DIP
SEE PAGE 2 FOR QFP PIN FUNCTIONS.
QFP
44
34
1
11
33
23
12
22
WR/P3.6
(SOT307–2)
PART NUMBER SELECTION
PHILIPS PART
ORDER NUMBER
PART MARKING
PACKAGE NUMBER
TEMPERATURE RANGE
°C,
PACKAGE
FREQUENCY
MHz
OM5232/FBP/xxx 1)
SOT129
0 to +70, Plastic Dual In–line Package, 40 leads
1.2 to 16
OM5232/FBB/xxx 1)
SOT307–2
0 to +70, Plastic Quad Flat Pack, 44 leads
1.2 to 16
NOTE:
1. xxx denotes the ROM code number.
EQUIVALENT TYPES
Details are as specified by the data sheet for the equivalent type:
OM5202 = P80C652 without I2C function.
OM5232 = P83C652 without I2C function.
OM5234 = P83C654 without I2C function.
OM5238 = P83C528 without I2C function.


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