OM5232 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
OM5232 Datasheet PDF : 11 Pages
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Philips Semiconductors
CMOS single-chip 8-bit microcontroller
Product specification
OM5232
QFP PIN FUNCTIONS
44
34
1
33
QFP
(SOT307–2)
11
23
12
22
Pin Function
1 P1.5
2 P1.6
3 P1.7
4 RST
5 P3.0/RxD
6
VSS4
7 P3.1/TxD
8 P3.2/INT0
9 P3.3/INT1
10 P3.4/T0
11 P3.5/T1
12 P3.6/WR
Pin Function
16
VSS1
17 NC
18 P2.0/A8
19 P2.1/A9
20 P2.2/A10
21 P2.3/A11
22 P2.4/A12
23 P2.5/A13
24 P2.6/A14
25 P2.7/A15
26 PSEN
27 ALE
Pin Function
31 P0.6/AD6
32 P0.5/AD5
33 P0.4/AD4
34 P0.3/AD3
35 P0.2/AD2
36 P0.1/AD1
37 P0.0/AD0
38
VDD
39
VSS3
40 P1.0
41 P1.1
42 P1.2
13 P3.7/RD
14 XTAL2
15 XTAL1
28
VSS2
29
EA/VPP
30 P0.7/AD7
43 P1.3
44 P1.4
NOTE:
1. Due to EMC improvements, all VSS pins (6, 16, 28, 39) must be
connected to VSS.
BLOCK DIAGRAM
FREQUENCY
REFERENCE
XTAL2 XTAL1
LOGIC SYMBOL
VDDVSS
RST
XTAL1
XTAL2
EA
PSEN
ALE
RxD
TxD
INT0
INT1
T0
T1
WR
RD
COUNTERS
T0
T1
OSCILLATOR
AND
TIMING
PROGRAM
MEMORY
(8K x 8 ROM)
DATA
MEMORY
(256 x 8 RAM)
TWO 16-BIT
TIMER/EVENT
COUNTERS
CPU
INTERNAL
INTERRUPTS
64K BYTE BUS
EXPANSION
CONTRTOL
PROGRAMMABLE I/O
PROG SERIAL PORT
FULL DUPLEX UART
SYNCHRONOUS SHIFT
INT0
INT1
EXTERNAL
INTERRUPTS
December 1994
CONTROL
PARALLEL PORTS,
ADDRESS/DATA BUS
AND I/O PINS
SERIAL IN SERIAL OUT
SHARED WITH
PORT 3
2
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