LPC1767 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'LPC1767' PDF : 66 Pages View PDF
NXP Semiconductors
LPC1769/68/67/66/65/64
32-bit ARM Cortex-M3 microcontroller
11. Dynamic characteristics
11.1 Flash memory
Table 7. Flash characteristics
Tamb = −40 °C to +85 °C, unless otherwise specified.
Symbol
Parameter
Conditions
Nendu
endurance
tret
retention time
powered
unpowered
[1] Number of program/erase cycles.
Min
Typ
[1] 10000
-
10
-
20
-
Max
-
-
-
11.2 External clock
Table 8. Dynamic characteristic: external clock
Tamb = −40 °C to +85 °C; VDD(3V3) over specified ranges.[1]
Symbol
Parameter
Conditions
fosc
oscillator frequency
Tcy(clk)
clock cycle time
tCHCX
clock HIGH time
tCLCX
clock LOW time
tCLCH
clock rise time
tCHCL
clock fall time
Min
1
40
Tcy(clk) × 0.4
Tcy(clk) × 0.4
-
-
Typ[2]
-
-
-
-
-
-
Max
25
1000
-
-
5
5
[1] Parameters are valid over operating temperature range unless otherwise specified.
[2] Typical ratings are not guaranteed. The values listed are at room temperature (25 °C), nominal supply voltages.
Unit
cycles
years
years
Unit
MHz
ns
ns
ns
ns
ns
tCHCL
tCLCX
tCHCX
tCLCH
Tcy(clk)
Fig 10. External clock timing (with an amplitude of at least Vi(RMS) = 200 mV)
002aaa907
LPC1769_68_67_66_65_64_4
Product data sheet
Rev. 04 — 1 February 2010
© NXP B.V. 2010. All rights reserved.
46 of 66
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