Philips Semiconductors
Product specification
ROMless 8-bit microcontroller
OM5202
DESCRIPTION
The OM5202 8-Bit ROMless Microcontroller is manufactured in an
advanced CMOS process and is a derivative of the 80C51
microcontroller family. The OM5202 has the same instruction set as
the 80C51.
See also:
鈥?OM5232 鈥?8K bytes mask programmable ROM
鈥?OM5234 鈥?16k bytes mask programmable ROM
鈥?OM5238 鈥?32K bytes mask programmable ROM
This device provides architectural enhancements that make it
applicable in a variety of applications for general control systems.
The OM5202 contains no read-only program memory, a volatile
256
脳
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. The OM5202 can be expanded
with 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碌s and 40% in 1.5碌s. Multiply
and divide instructions require 3碌s.
PIN CONFIGURATIONS
P1.0 1
P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
RST 9
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
V
SS
20
44
DIP
40 V
DD
39 P0.0/AD0
38 P0.1/AD1
37 P0.2/AD2
36 P0.3/AD3
35 P0.4/AD4
34 P0.5/AD5
33 P0.6/AD6
32 P0.7/AD7
31 EA
30 ALE
29 PSEN
28 P2.7/A15
27 P2.6/A14
26 P2.5/A13
25 P2.4/A12
24 P2.3/A11
23 P2.2/A10
22 P2.1/A9
21 P2.0/A8
FEATURES
鈥?/div>
80C51 central processing unit
鈥?/div>
no internal ROM, externally up to 64k bytes
鈥?/div>
256
脳
8 RAM, expandable externally to 64k bytes
鈥?/div>
Two standard 16-bit timer/counters
鈥?/div>
Four 8-bit I/O ports
鈥?/div>
Two open drain I/O鈥檚 (P1.6, P1.7)
鈥?/div>
Full-duplex UART facilities
鈥?/div>
Power control modes
鈥?/div>
Idle mode
鈥?/div>
Power-down mode
34
1
33
QFP
(SOT307鈥?)
11
23
12
22
鈥?/div>
Operating frequency range: 1.2 to 16 MHz
鈥?/div>
Operating ambient temperature range: 0 to +70擄C
PART NUMBER SELECTION
PHILIPS PART
ORDER NUMBER
PART MARKING
OM5202/FBP
OM5202/FBB
PACKAGE NUMBER
SOT129
SOT307鈥?
SEE PAGE 2 FOR QFP PIN FUNCTIONS.
TEMPERATURE RANGE
擄
C,
PACKAGE
0 to +70, Plastic Dual In鈥搇ine Package, 40 leads
0 to +70, Plastic Quad Flat Pack, 44 leads
FREQUENCY
MHz
1.2 to 16
1.2 to 16
EQUIVALENT TYPES
Details are as specified by the data sheet for the equivalent type:
OM5202 = P80C652 without I
2
C function.
OM5232 = P83C652 without I
2
C function.
OM5234 = P83C654 without I
2
C function.
OM5238 = P83C528 without I
2
C function.
December 1994
1
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