P89LPC931FDH NXP Semiconductors, P89LPC931FDH Datasheet - Page 30

• Manufacturer Part Number: P89LPC931FDH
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89LPC931FDH

• Package: 28TSSOP
• Device Core: 80C51
• Family Name: 89LP
• Maximum Speed: 18 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 26
• Interface Type: I2C/SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 2

Philips Semiconductors
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Product data
8.18 I
I
connected to the bus, and it has the following features:
A typical I
provides a byte-oriented I
2
2
•
•
•
•
•
•
Fig 7. I
C-bus uses two wires (SDA and SCL) to transfer information between devices
C-bus serial interface
Bidirectional data transfer between masters and slaves.
Multimaster bus (no central master).
Arbitration between simultaneously transmitting masters without corruption of
serial data on the bus.
Serial clock synchronization allows devices with different bit rates to communicate
via one serial bus.
Serial clock synchronization can be used as a handshake mechanism to suspend
and resume serial transfer.
The I
2
C-bus may be used for test and diagnostic purposes.
2
2
C-bus configuration.
C-bus configuration is shown in
I
2
C-BUS
Rev. 05 — 15 December 2004
P1.3/SDA
P89LPC930/931
2
C-bus interface that supports data transfers up to 400 kHz.
P1.2/SCL
8-bit microcontrollers with two-clock 80C51 core
OTHER DEVICE
WITH I
R P
INTERFACE
Figure
2
C-BUS
R P
7. The P89LPC930/931 device
P89LPC930/931
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
OTHER DEVICE
WITH I
INTERFACE
2
C-BUS
002aaa433
SDA
SCL
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