LPC2101_02_03 NXP Semiconductors, LPC2101_02_03 Datasheet - Page 29

• Manufacturer Part Number: LPC2101_02_03
• Description: The LPC2101/02/03 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S CPU withreal-time emulation that combines the microcontroller with 8 kB, 16 kB or 32 kB ofembedded high-speed flash memory
• Manufacturer: NXP Semiconductors

NXP Semiconductors
9. Dynamic characteristics
Table 7.
T
specified ranges
[1]
[2]
[3]
10. Application information
LPC2101_02_03_4
Product data sheet
Symbol
External clock
f
T
t
t
t
t
Port pins (except P0.2 and P0.3)
t
t
I
t
osc
CHCX
CLCX
CLCH
CHCL
r(o)
f(o)
2
f(o)
amb
cy(clk)
C-bus pins (P0.2 and P0.3)
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply voltages.
Bus capacitance C
= 0 C to 70 C for commercial applications, 40 C to +85 C for industrial applications, V
Dynamic characteristics
[1]
10.1 XTAL1 input
Parameter
oscillator frequency
clock cycle time
clock HIGH time
clock LOW time
clock rise time
clock fall time
output rise time
output fall time
output fall time
.
b
in pF, from 10 pF to 400 pF.
The input voltage to the on-chip oscillators is limited to 1.8 V. If the oscillator is driven by a
clock in slave mode, it is recommended that the input be coupled through a capacitor with
C
capacitor to ground C
mode, a minimum of 200 mV (RMS) is needed. For more details see the LPC2101/02/03
User manual UM10161 .
Fig 9.
i
= 100 pF. To limit the input voltage to the specified range, choose an additional
Slave mode operation of the on-chip oscillator
g
which attenuates the input voltage by a factor C
Rev. 04 — 2 June 2009
Conditions
V
IH
to V
IL
XTAL1
LPC2xxx
C i
100 pF
Single-chip 16-bit/32-bit microcontrollers
Min
10
40
T
T
-
-
-
-
20 + 0.1
cy(clk)
cy(clk)
002aae718
C g
0.4
0.4
C
b
LPC2101/02/03
[3]
Typ
-
-
-
-
-
-
10
10
-
DD(1V8)
[2]
, V
i
/(C
© NXP B.V. 2009. All rights reserved.
DD(3V3)
Max
25
100
-
-
5
5
-
-
-
i
+ C
over
g
). In slave
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
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