EA-XPR-002 Embedded Artists, EA-XPR-002 Datasheet - Page 49

• Manufacturer Part Number: EA-XPR-002
• Description: BOARD LPCXPRESSO LPC1114
• Manufacturer: Embedded Artists
• Series: LPCXpressor
• Type: MCUr

Specifications of EA-XPR-002

• Contents: Board, Software
• For Use With/related Products: EA-XPR-021, ARM Cortex-M0
• For Use With: EA-XPR-021 - BOARD BASE LPCXPRESSO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
LPC1111_12_13_14
Product data sheet
10.3 External clock
Table 13.
T
[1]
[2]
Symbol
f
T
t
t
t
t
osc
CHCX
CLCX
CLCH
CHCL
amb
Fig 25. External clock timing (with an amplitude of at least V
cy(clk)
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.
= −40 °C to +85 °C; V
Dynamic characteristic: external clock
Parameter
oscillator frequency
clock cycle time
clock HIGH time
clock LOW time
clock rise time
clock fall time
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 10 February 2011
DD
over specified ranges.
t
CHCL
Conditions
t
CLCX
[1]
32-bit ARM Cortex-M0 microcontroller
Min
1
40
T
T
-
-
cy(clk)
cy(clk)
T
cy(clk)
LPC1111/12/13/14
× 0.4
× 0.4
t
CLCH
t
CHCX
i(RMS)
Typ
-
-
-
-
-
-
= 200 mV)
[2]
002aaa907
© NXP B.V. 2011. All rights reserved.
Max
25
1000
-
-
5
5
Unit
MHz
ns
ns
ns
ns
ns
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