p89lpc904 NXP Semiconductors, p89lpc904 Datasheet - Page 36

• Manufacturer Part Number: p89lpc904
• Description: 8-bit Microcontrollers With Two-clock Accelerated 80c51 Core 1 Kb 3 V Byte-erasable Flash With 8-bit A/d Converter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
11. Dynamic characteristics
Table 9:
T
[1]
[2]
9397 750 13521
Preliminary data
Symbol
f
f
Glitch filter
Shift register (UART mode 0)
t
t
t
t
t
RCOSC
WDOSC
XLXL
QVXH
XHQX
XHDX
DVXH
amb
Fig 10. Shift register mode timing.
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.
= 40 C to +85 C for industrial, unless otherwise specified.
AC characteristics
Parameter
internal RC oscillator frequency
(nominal f = 7.3728 MHz) trimmed
to
internal Watchdog oscillator
frequency (nominal f = 400 kHz)
glitch rejection, P1.5/RST pin
signal acceptance, P1.5/RST pin
glitch rejection, any pin except
P1.5/RST
signal acceptance, any pin except
P1.5/RST
serial port clock cycle time
output data set-up to clock rising
edge
output data hold after clock rising
edge
input data hold after clock rising
edge
input data valid to clock rising edge see
Write to SBUF
Output Data
Input Data
Clear RI
1 % at T
Clock
t QVXH
amb
t XHDV
= 25 C
t XLXL
Valid
0
t XHDX
t XHQX
Valid
1
Conditions
see
see
see
see
Rev. 02 — 25 June 2004
8-bit microcontrollers with two-clock accelerated 80C51 core
Figure 10
Figure 10
Figure 10
Figure 10
Figure 10
Valid
2
Valid
[1]
3
Variable clock
Min
7.189
280
-
125
-
50
16t
13t
-
-
150
Valid
CLCL
CLCL
4
Max
7.557
480
50
-
15
-
-
-
t
0
-
CLCL
Valid
5
+ 20
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Valid
6
P89LPC904
f
Min
7.189
280
-
125
-
50
1333
1083
-
-
150
ext
= 12 MHz
002aaa425
Valid
Set TI
Set RI
7
Max
7.557
480
50
-
15
-
-
-
103
0
-
36 of 41
Unit
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns