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INTEGRATED CIRCUITS
89C536/89C538 80C51 8-bit microcontroller family 16K/64K/512 FLASH
Preliminary specification Supersedes data of 1997 Dec 02 IC20 Data Handbook 1998 Apr 24
Philips Semiconductors
Philips Semiconductors
Preliminary specification
80C51 8-bit microcontroller family 16K/64K/512 FLASH
89C536/89C538
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.
FEATURES
• 80C51 Central Processing Unit • 16k × 8 (89C536) or 64k × 8 (89C538), FLASH EPROM Program
Memory
• 512 × 8 RAM, externally expandable to 64k × 8 Data Memory • 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 external interrupt
• 44-pin PLCC and QFP packages
ORDERING INFORMATION
PART NUMBER 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 Quad Flat Package 0 to +70, 44-pin Plastic Leaded Chip Carrier 0 to +70, 44-pin Plastic Quad Flat Package FREQ. (MHz) 33 33 33 33 DRAWING NUMBER SOT187-2 SOT307-2 SOT187-2 SOT307-2
1998 Apr 24
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Philips Semiconductors
Preliminary specification
80C51 8-bit microcontroller family 16K/64K/512 FLASH
89C536/89C538
BLOCK DIAGRAM
P0.0–P0.7 P2.0–P2.7
PORT 0 DRIVERS
PORT 2 DRIVERS
VCC VSS
RAM ADDR REGISTER RAM PORT 0 LATCH PORT 2 LATCH ROF/ EPROM
8
B REGISTER ACC STACK POINTER PROGRAM ADDRESS REGISTER
TMP2
TMP1
ALU SFRs PSW TIMERS
BUFFER
PC INCREMENTER
8
PROGRAM COUNTER
16
PSEN ALE/PROG EAVPP RST
TIMING AND CONTROL
INSTRUCTION REGISTER
DPTR’S MULTIPLE
PD
OSCILLATOR
PORT 1 LATCH
PORT 3 LATCH
PORT 1 DRIVERS
XTAL1 XTAL2
PORT 3 DRIVERS
P1.0–P1.7
P3.0–P3.7
SU00854
LOGIC SYMBOL
VCC XTAL1 PORT 0 ADDRESS AND DATA BUS VSS
PROGRAMMING INFORMATION:
Programmers are provided by: Company Advin BP Microsystem Data I/O HiLo Phone Number Internet Address 1–800–627–2456 1–800–225–2102 http://www.bpmicro.com 1–206–881–6444 http://www.data–io.com
XTAL2 T2 T2EX RST EA/VPP PSEN SECONDARY FUNCTIONS ALE/PROG RxD TxD INT0 INT1 T0 T1 WR RD PORT 1 PORT 2
PORT 3
ADDRESS BUS
SU00830
1998 Apr 24
3
Philips Semiconductors
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