LPC2131_32_34_36_38 NXP Semiconductors, LPC2131_32_34_36_38 Datasheet - Page 29

• Manufacturer Part Number: LPC2131_32_34_36_38
• Description: The LPC2131/32/34/36/38 microcontrollers are based on a 16/32-bit ARM7TDMI-S CPUwith real-time emulation and embedded trace support, that combine the microcontrollerwith 32 kB, 64 kB, 128 kB, 256 kB and 512 kB of embedded high-speed flash memory
• Manufacturer: NXP Semiconductors

NXP Semiconductors
[4]
[5]
[6]
[7]
[8]
[9]
[10] Applies to P1.16 to P1.25.
[11] On pin VBAT.
[12] Optimized for low battery consumption.
[13] To V
9. Dynamic characteristics
Table 7.
T
[1]
[2]
[3]
LPC2131_32_34_36_38
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)
V
3-state outputs go into 3-state mode when V
Please also see the errata note mentioned in the errata sheet.
Accounts for 100 mV voltage drop in all supply lines.
Only allowed for a short time period.
Minimum condition for V
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
=
DD

SS
40
supply voltages must be present.
.

Dynamic characteristics
C to +85
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

C for commercial applications, V
in pF, from 10 pF to 400 pF.
I
= 4.5 V, maximum condition for V
All information provided in this document is subject to legal disclaimers.
DD
is grounded.
V
Rev. 5.1 — 29 July 2011
Conditions
IH
to V
DD
I
= 5.5 V.
over specified ranges.
IL
Min
10
40
T
T
-
-
-
-
20 + 0.1  C
LPC2131/32/34/36/38
cy(clk)
cy(clk)
Single-chip 16/32-bit microcontrollers
[1]
 0.4
 0.4
b
[3]
Typ
-
-
-
-
-
-
10
10
-
[2]
© NXP B.V. 2011. All rights reserved.
Max
25
100
-
-
5
5
-
-
-
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
29 of 45