87C528 Philips Semiconductors, 87C528 Datasheet - Page 2

• Manufacturer Part Number: 87C528
• Description: 80C51 8-bit microcontrollers 16K/32K/ 512 OTP/ I2C/ watchdog timer
• Manufacturer: Philips Semiconductors

1. For ROM & ROMless devices, see data sheet P8X524/528.
Philips Semiconductors
DESCRIPTION
The 87C528 single-chip 8-bit microcontroller is manufactured in an
advanced CMOS process and is a derivative of the 80C51
microcontroller family. The 87C528 has the same instruction set as
the 80C51. Three versions of the derivative exist:
This device provides architectural enhancements that make it
applicable in a variety of applications in consumer, telecom and
general control systems, especially in those systems which need
large ROM and RAM capacity on-chip.
The 87C528 contains a 32k
16k x 8 EPROM. Both devices have a 512
ports, two 16-bit timer/event counters (identical to the timers of the
80C51), a 16-bit timer (identical to the timer 2 of the 80C52), a
watchdog timer with a separate oscillator, a multi-source,
two-priority-level, nested interrupt structure, two serial interfaces
(UART and I
In addition, the 87C524/87C528 has two software selectable modes
of power reduction—idle mode and power-down mode. The idle
mode freezes the CPU while allowing the RAM, timers, serial port,
and interrupt system to continue functioning. The power-down mode
saves the RAM contents but freezes the oscillator, causing all other
chip functions to be inoperative.
ORDERING INFORMATION
NOTE:
1999 Jul 23
P87C528EBP N
P87C528EBA A
P87C528EBB B
P87C528EFP N
P87C528EFB B
P87C524EBA A
P87C524EBB B
83C528—32k bytes ROM
83C524—16k bytes ROM
80C528—ROMless version of the 83C528
87C528—32k bytes EPROM
83C524—16k bytes EPROM
80C51 8-bit microcontrollers
16K/32K, 512 OTP, I
EPROM
2
C-bus), and on-chip oscillator and timing circuits.
8 EPROM and the 87C524 contains a
2
C, watchdog timer
8 RAM, four 8-bit I/O
–40 to +85, Plastic Dual In-line Package
0 to +70, Plastic Dual In-line Package
0 to +70, Plastic Leaded Chip Carrier
0 to +70, Plastic Leaded Chip Carrier
–40 to +85, Plastic Quad Flat Pack
0 to +70, Plastic Quad Flat Pack
0 to +70, Plastic Quad Flat Pack
TEMPERATURE
AND PACKAGE
2
o
C RANGE
FEATURES
80C51 instruction set
– 512
– Memory addressing capability
– Three 16-bit counter/timers
– On-chip watchdog timer with oscillator
– Full duplex UART
– I
Power control modes:
– Idle mode
– Power-down mode
– Warm start from power-down
CMOS and TTL compatible
Extended temperature ranges
EPROM code protection
OTP package available
16 MHz speed at V
64k ROM and 64k RAM
2
C serial interface
8 RAM
CC
= 5 V
FREQ
(MHz)
87C524/87C528
16
16
16
16
16
16
16
Product specification
853-1687 22041
SOT129-1
SOT187-2
SOT307-2
SOT129-1
SOT307-2
SOT187-2
SOT307-2
Drawing
Number