Philips Semiconductors
Product specification
89C51/89C52/89C54/89C58
80C51 8-bit microcontroller family
4K/8K/16K/32K Flash
2
1999 Oct 27
853–2148 22592
DESCRIPTION
The 89C51/89C52/89C54/89C58 contain a non-volatile FLASH
program memory that is parallel programmable. For devices that are
serial programmable (In System Programmable (ISP) with a boot
loader), see the 89C51RC+/89C51RD+ datasheet.
Both families are Single-Chip 8-bit Microcontrollers manufactured in
advanced CMOS process and are derivatives of the 80C51
microcontroller family. All the devices have the same instruction set
as the 80C51.
SELECTION TABLE FOR FLASH DEVICES
ROM/EPROM
Memory Size
(X by 8)
RAM Size
(X by 8)
Programmable
Timer Counter
(PCA)
Hardware
Watchdog
Timer
Multi-Time Programmable (MTP) devices:
89C51
4 k
128
No
89C52/54/58
8 k/16 k/32 k
256
No
Serial In-System Programmable devices:
89C51RC+
32 k
512
Yes
89C51RD+
64 k
1024
Yes
FEATURES
80C51 Central Processing Unit
On-chip FLASH Program Memory
Speed up to 33 MHz
Full static operation
RAM expandable externally to 64 k bytes
4 level priority interrupt
6 interrupt sources
Four 8-bit I/O ports
Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
Power control modes
– Clock can be stopped and resumed
– Idle mode
– Power down mode
Programmable clock out
Second DPTR register
Asynchronous port reset
Low EMI (inhibit ALE)
3 16-bit timers
Wake up from power down by an external interrupt
ORDERING INFORMATION
MEMORY SIZE
4 k
× 8
MEMORY SIZE
8 k
× 8
MEMORY SIZE
16 k
× 8
MEMORY SIZE
32 k
× 8
TEMPERATURE
RANGE
°C
AND PACKAGE
VOLTAGE
RANGE
FREQ.
(MHz)
DWG.
#
FLASH
P89C51UBA A
P89C52UBA A
P89C54UBA A
P89C58UBA A
0 to +70, Plastic
Leaded Chip Carrier
5 V
0 to 33
SOT187-2
FLASH
P89C51UBP N
P89C52UBP N
P89C54UBP N
P89C58UBP N
0 to +70, Plastic
Dual In-line Package
5 V
0 to 33
SOT129-1
FLASH
P89C51UBB B
P89C52UBB B
P89C54UBB B
P89C58UBB B
0 to +70, Plastic
Quad Flat Pack
5 V
0 to 33
QFP442
FLASH
P89C51UFA A
P89C52UFA A
P89C54UFA A
P89C58UFA A1
–40 to +85, Plastic
Leaded Chip Carrier
5 V
0 to 33
SOT187-2
FLASH
P89C51UFP N
P89C52UFP N
P89C54UFP N
P89C58UFP N1
–40 to +85, Plastic
Dual In-line Package
5 V
0 to 33
SOT129-1
FLASH
P89C51UFB B
P89C52UFB B
P89C54UFB B
P89C58UFB B1
–40 to +85, Plastic
Quad Flat Pack
5 V
0 to 33
QFP442
NOTES:
1. Contact Philips Sales for availability.
2. SOT not assigned for this package outline.
PART NUMBER DERIVATION
DEVICE NUMBER (P89CXX)
OPERATING FREQUENCY, MAX (V)
TEMPERATURE RANGE (B)
PACKAGE (AA, BB, PN)
P89C51 FLASH
P89C52 FLASH
P89C54 FLASH
P89C58 FLASH
U = 33 MHz
B = 0
_C to 70_C
F = –40
_C to 85_C
AA = PLCC
BB = PQFP
PN = PDIP