P89LPC931FDH NXP Semiconductors, P89LPC931FDH Datasheet - Page 48

• 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
Table 9:
V
T
[1]
[2]
9397 750 14472
Product data
Symbol
t
SPIF
amb
DD
Fig 15. SPI master timing (CPHA = 0).
= 3.0 V to 3.6 V, unless otherwise specified.
Parameters are valid over operating temperature range unless otherwise specified. Parts are tested to 2 MHz, but are guaranteed to
operate down to 0 Hz.
When using an oscillator frequency above 12 MHz, the reset input function of P1.5 must be enabled. An external circuit is required to
hold the device in reset at power-up until V
minimum specified operating voltage. When using an oscillator frequency above 12 MHz, in some applications, an external brownout
detect circuit may be required to hold the device in reset when V
= 40 C to +85 C for industrial, unless otherwise specified.
AC characteristics
Parameter
Fall time
SPI outputs (SPICLK, MOSI,
MISO)
SPI inputs (SPICLK, MOSI,
MISO, SS)
(CPOL = 0)
(CPOL = 1)
SPICLK
SPICLK
(output)
(output)
(output)
(input)
MISO
MOSI
SS
t SPIF
…continued
t SPIF
t SPIDSU
Master MSB/LSB out
DD
t SPIDV
MSB/LSB in
has reached its specified level. When system power is removed V
Rev. 05 — 15 December 2004
t SPICLKH
t SPICLKL
t SPIDH
Conditions
see Figures
15, 16, 17,
t SPIF
t CLCL
t SPICLKH
t SPICLKL
DD
18
t SPIR
t SPIOH
falls below the minimum specified operating voltage.
[1]
8-bit microcontrollers with two-clock 80C51 core
Variable clock
Min
-
-
t SPIR
Max
100
2000
Master LSB/MSB out
LSB/MSB in
t SPIDV
P89LPC930/931
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
f
Min
-
-
002aaa156
osc
= 18 MHz
DD
t SPIR
will fall below the
Max
100
2000
48 of 55
Unit
ns
ns