P89LPC925 PHILIPS [NXP Semiconductors], P89LPC925 Datasheet - Page 42

• Manufacturer Part Number: P89LPC925
• Description: 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
11. Dynamic characteristics
Table 9:
V
T
[1]
9397 750 14471
Product data
Symbol
f
f
f
t
f
Glitch filter
External clock
t
t
t
t
Shift register (UART mode 0)
t
t
t
t
t
RCOSC
WDOSC
osc
CLCL
CLKP
CHCX
CLCX
CLCH
CHCL
XLXL
QVXH
XHQX
XHDX
DVXH
amb
DD
= 2.4 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.
= 40 C to +85 C for industrial, unless otherwise specified.
AC characteristics
Parameter
internal RC oscillator frequency
(nominal f = 7.3728 MHz)
internal Watchdog oscillator
frequency (nominal f = 400 kHz)
oscillator frequency
clock cycle
CLKLP active frequency
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
HIGH time
LOW time
rise time
fall time
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
Rev. 03 — 15 December 2004
Conditions
trimmed to 1%
at T
see
see
see
see
see
8-bit microcontrollers with accelerated two-clock 80C51 core
amb
Figure 13
Figure 13
Figure 13
Figure 13
Figure 13
= 25 C
[1]
Variable clock
Min
7.189
320
0
83
0
-
125
-
50
33
33
-
-
16 t
13 t
-
-
150
CLCL
CLCL
Max
7.557
520
12
-
8
50
-
15
-
t
t
8
8
-
-
t
0
-
CLCL
CLCL
CLCL
P89LPC924/925
+ 20
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
t
t
CLCX
CHCX
f
Min
7.189
320
-
-
-
-
125
-
50
33
33
-
-
1333
1083
-
-
150
osc
= 12 MHz
Max
7.557
520
-
-
-
50
-
15
-
-
-
8
8
-
-
103
0
-
42 of 49
Unit
MHz
kHz
MHz
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns