LPC2141 PHILIPS [NXP Semiconductors], LPC2141 Datasheet - Page 32

• Manufacturer Part Number: LPC2141
• Description: Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
10. Application information
9397 750 14985
Preliminary data sheet
Fig 8. External clock timing
Fig 9. Differential data-to-EOP transition skew and EOP width
Fig 10. LPC2141/42/44/46/48 USB interface using the CONNECT function on pin 17
t
PERIOD
differential
data lines
10.1 Suggested USB interface solutions
9.1 Timing
V
DD
0.45 V
0.5 V
LPC2142/2148
0.2V
0.2V
n * t
differential data to
DD
crossover point
SEO/EOP skew
DD
PERIOD
0.1 V
0.9 V
+ t
FDEOP
CONNECT
V
VBUS
D
D
V
DD
SS
Rev. 01 — 3 October 2005
t
CHCL
R S = 33
R S = 33
crossover point
R1
1.5 k
t
CLCX
soft-connect switch
extended
T
LPC2141/42/44/46/48
cy(CLK)
Single-chip 16-bit/32-bit microcontrollers
t
t
CLCH
CHCX
002aab563
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
source EOP width: t
receiver EOP width: t
USB-B
connector
002aaa907
FEOPT
002aab561
EOPR1
, t
EOPR2
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