p89lpc930fdh NXP Semiconductors, p89lpc930fdh Datasheet - Page 48

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p89lpc930fdh

Manufacturer Part Number
p89lpc930fdh
Description
8-bit Microcontrollers With Two-clock 80c51 Core 4 Kb/8 Kb 3 V Flash With 256-byte Data Ram
Manufacturer
NXP Semiconductors
Datasheet

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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

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