om5234 NXP Semiconductors, om5234 Datasheet - Page 2

• Manufacturer Part Number: om5234
• Description: Cmos Single-chip 8-bit Microcontrollers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DESCRIPTION
The OM5234 and OM5284 single-chip 8-bit microcontrollers are
manufactured in an advanced CMOS process and are derivatives of
the 80C51 microcontroller family. The OM5234 and OM5284 are
pre-programmed devices for specific applications. Unless
specifically stated otherwise, all references to OM5234 apply equally
to OM5284.
The OM5234 contains a non-volatile 16k
memory, a volatile 256
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.
ORDERING INFORMATION
LOGIC SYMBOL
1996 Nov 01
CMOS single-chip 8-bit microcontrollers
OM5234/FBB/YYY
OM5234/FBP/YYY
OM5234/FBA/YYY
OM5284EBYY
OM5284EAYY
OM5284EPYY
Device
Frequency Range
Temperature Range
OM5234
F = 3.5 to 16MHz
I = 3.5 to 24MHz
B = 0 to 70 C
PART NUMBER
OM5234
/
F T P
8 read/write data memory, four 8-bit I/O
/ YYY
Package designator
A = Plastic Leaded Chip Carrier
B = Plastic Quad Flat Package
P = Plastic Dual In-Line Package
0 to 70 C, Plastic Quad Flat Package
0 to 70 C, Plastic Dual In-Line Package
0 to 70 C, Plastic Leaded Chip Carrier
0 to 70 C, Plastic Quad Flat Package
0 to 70 C, Plastic Leaded Chip Carrier
0 to 70 C, Plastic Dual In-Line Package
ROM code for application
5XX, etc.
8 read-only program
TEMPERATURE RANGE C
XTAL1
XTAL2
PSEN
INT0
INT1
RxD
RST
TxD
WR
ALE
RD
T0
T1
EA
AND PACKAGE
V
CC
V
2
SS
Device
Frequency Range
FEATURES
OM5284
E = 3.5 to 16MHz
I = 3.5 to 24MHz
80C51 central processing unit
6k
256
Two standard 16-bit timer/counters
Four 8-bit I/O ports
Full-duplex UART facilities
Power control modes
– Idle mode
– Power-down mode
ROM code protection
8 ROM
8 RAM
OM5284 X Y ZZ
ADDRESS BUS
ADDRESS AND
DATA BUS
Package designator
A = Plastic Leaded Chip Carier
B = Plastic Quad Flat Package
P = Plastic Dual In-Line Package
OM5234/OM5284
FREQUENCY
ROM code for application
(MHz)
01, 02, 03
Preliminary specification
16
16
16
16
16
16
DRAWING
SOT307-2
SOT129-1
SOT187-2
SOT307-2
SOT187-2
SOT129-1
NUMBER
SU00800