P89LPC9321FN NXP Semiconductors, P89LPC9321FN Datasheet - Page 54
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P89LPC9321FN
Manufacturer Part Number
P89LPC9321FN
Description
MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin PDIP Tube
Manufacturer
NXP Semiconductors
Datasheet
1.P89LPC9321FN.pdf
(70 pages)
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NXP Semiconductors
10. Dynamic characteristics
Table 11.
V
T
P89LPC9321_1
Product data sheet
Symbol
f
f
f
T
f
Glitch filter
t
t
External clock
t
t
t
t
Shift register (UART mode 0)
T
t
t
t
t
SPI interface
f
osc(RC)
osc(WD)
osc
CLKLP
gr
sa
CHCX
CLCX
CLCH
CHCL
QVXH
XHQX
XHDX
XHDV
SPI
amb
DD
cy(clk)
XLXL
= 2.4 V to 3.6 V unless otherwise specified.
= 40 C to +85 C for industrial applications, unless otherwise specified.
Dynamic characteristics (12 MHz)
Parameter
internal RC oscillator
frequency
internal watchdog
oscillator frequency
oscillator frequency
clock cycle time
low-power select clock
frequency
glitch rejection time
signal acceptance time
clock HIGH time
clock LOW time
clock rise time
clock fall time
serial port clock cycle
time
output data set-up to
clock rising edge time
output data hold after
clock rising edge time
input data hold after
clock rising edge time
input data valid to clock
rising edge time
SPI operating frequency
slave
master
Conditions
nominal f = 7.3728 MHz
trimmed to
T
doubler option = OFF
(default)
nominal f = 14.7456 MHz;
clock doubler option = ON,
V
T
see
P1.5/RST pin
any pin except P1.5/RST
P1.5/RST pin
any pin except P1.5/RST
see
see
see
see
see
see
see
see
see
amb
amb
DD
Figure 22
Figure 22
Figure 22
Figure 22
Figure 22
Figure 21
Figure 21
Figure 21
Figure 21
Figure 21
= 2.7 V to 3.6 V
= 25 C; clock
= 25 C
Rev. 01 — 9 December 2008
1 % at
8-bit microcontroller with accelerated two-clock 80C51 core
16T
13T
14.378
7.189
Min
380
125
150
83
50
33
33
0
0
0
cy(clk)
cy(clk)
-
-
-
-
-
-
-
Variable clock
[1][2]
T
T
cy(clk)
cy(clk)
T
cy(clk)
15.114
7.557
CCLK
CCLK
Max
420
12
50
15
8
8
8
0
-
-
-
-
-
-
+ 20
t
t
6
4
CHCX
CLCX
P89LPC9321
14.378 15.114 MHz
7.189
f
1333
1083
osc
Min
380
125
150
50
33
33
0
-
-
-
-
-
-
-
-
-
-
© NXP B.V. 2008. All rights reserved.
= 12 MHz
7.557 MHz
Max
420
103
2.0
3.0
50
15
8
8
0
-
-
-
-
-
-
-
-
-
-
54 of 70
Unit
kHz
MHz
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
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