LPC2194 NXP Semiconductors, LPC2194 Datasheet - Page 35

• Manufacturer Part Number: LPC2194
• Description: The LPC2194 is based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation andembedded trace support, together with 256 kB of embedded high-speed flash memory
• Manufacturer: NXP Semiconductors

NXP Semiconductors
9. Dynamic characteristics
Table 8.
T
[1]
[2]
LPC2194
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
f
2
f
amb
cy(clk)
C-bus pins (P0[2] and P0[3])
Parameters are valid over operating temperature range unless otherwise specified.
Bus capacitance C
=

40

Dynamic characteristics
C to +125
9.1 Timing
Parameter
oscillator frequency
clock cycle time
clock HIGH time
clock LOW time
clock rise time
clock fall time
rise time
fall time
fall time
b
in pF, from 10 pF to 400 pF.

C for industrial applications; V
Fig 14. External clock timing (with an amplitude of at least V
All information provided in this document is subject to legal disclaimers.
Conditions
supplied by an external
oscillator (signal generator)
external clock frequency
supplied by an external
crystal oscillator
external clock frequency if
on-chip PLL is used
external clock frequency if
on-chip bootloader is used
for initial code download
V
IH
to V
Rev. 6 — 14 June 2011
IL
DD(1V8)
, V
t
CHCL
DD(3V3)
over specified ranges.
t
CLCX
[2]
Min
1
1
10
10
20
T
-
20 + 0.1  C
T
-
-
-
Single-chip 16/32-bit microcontroller
cy(clk)
cy(clk)
T
cy(clk)
 0.4
 0.4
t
CLCH
t
CHCX
b
i(RMS)
[1]
Typ
-
-
-
-
-
-
-
-
-
10
10
-
= 200 mV)
002aaa907
LPC2194
© NXP B.V. 2011. All rights reserved.
Max
50
30
25
25
1000
-
-
5
5
-
-
-
Unit
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
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