p89c538nbb NXP Semiconductors, p89c538nbb Datasheet - Page 2

• Manufacturer Part Number: p89c538nbb
• Description: Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
• Manufacturer: NXP Semiconductors

DESCRIPTION
The 89C536/89C538 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.
The devices also have four 8-bit I/O ports, three 16-bit timer/event
counters, a multi-source, two-priority-level, nested interrupt
structure, UART and on-chip oscillator and timing circuits. For
systems that require extra data memory capability up to 64k bytes,
each can be expanded using standard TTL-compatible memories
and logic.
The 89C536/89C538 contain a non-volatile FLASH program
memory (16k bytes in the 89C536, and 64k bytes in the 89C538).
The devices have 512 bytes of RAM data memory.
ORDERING INFORMATION
Philips Semiconductors
1998 Apr 24
PART NUMBER
80C51 8-bit microcontroller family
16K/64K/512 FLASH
P89C536NBA A
P89C536NBB B
P89C538NBA A
P89C538NBB B
MEMORY SIZE
16k bytes
16k bytes
64k bytes
64k bytes
TEMPERATURE RANGE ( C) AND PACKAGE
0 to +70, 44-pin Plastic Leaded Chip Carrier
0 to +70, 44-pin Plastic Leaded Chip Carrier
0 to +70, 44-pin Plastic Quad Flat Package
0 to +70, 44-pin Plastic Quad Flat Package
2
FEATURES
80C51 Central Processing Unit
16k
Memory
512
Three 16-bit counter/timers
Up to 3 external interrupt request inputs
6 interrupt sources with 2 priority levels
Four 8-bit I/O ports
Full-duplex UART
Power control modes
– Idle mode
– Power down mode, with wakeup from power down using
44-pin PLCC and QFP packages
external interrupt
8 (89C536) or 64k
8 RAM, externally expandable to 64k
8 (89C538), FLASH EPROM Program
89C536/89C538
FREQ.
(MHz)
33
33
33
33
Preliminary specification
8 Data Memory
DRAWING
SOT187-2
SOT307-2
SOT187-2
SOT307-2
NUMBER