Nxp Semiconductors LPC2194HBD64,151 ARM7 Microcontroller 16kB LQFP 64 LPC2194HBD64,151 数据表
产品代码
LPC2194HBD64,151
LPC2194_4
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 04 — 11 September 2006
30 of 36
Philips Semiconductors
LPC2194
Single-chip 16/32-bit microcontroller
9.
Dynamic characteristics
[1]
Parameters are valid over operating temperature range unless otherwise specified.
[2]
Bus capacitance C
b
in pF, from 10 pF to 400 pF.
Table 11.
Dynamic characteristics
T
amb
=
−
40
°
C to +125
°
C for industrial applications; V
DD(1V8)
, V
DD(3V3)
over specified ranges
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
External clock
f
osc
oscillator frequency
supplied by an external
oscillator (signal generator)
oscillator (signal generator)
1
-
50
MHz
external clock frequency
supplied by an external
crystal oscillator
supplied by an external
crystal oscillator
1
-
30
MHz
external clock frequency if
on-chip PLL is used
on-chip PLL is used
10
-
25
MHz
external clock frequency if
on-chip bootloader is used
for initial code download
on-chip bootloader is used
for initial code download
10
-
25
MHz
T
cy(clk)
clock cycle time
20
-
1000
ns
t
CHCX
clock HIGH time
T
cy(clk)
× 0.4
-
-
ns
t
CLCX
clock LOW time
T
cy(clk)
× 0.4
-
-
ns
t
CLCH
clock rise time
-
-
5
ns
t
CHCL
clock fall time
-
-
5
ns
Port pins (except P0.2 and P0.3)
t
r
rise time
-
10
-
ns
t
f
fall time
-
10
-
ns
I
2
C-bus pins (P0.2 and P0.3)
t
f
fall time
V
IH
to V
IL
20 + 0.1
× C
b
-
-
ns