EA-QSB-010 Embedded Artists, EA-QSB-010 Datasheet - Page 34

• Manufacturer Part Number: EA-QSB-010
• Description: MCU, MPU & DSP Development Tools LPC2148 USB QUICKSTART BRD
• Manufacturer: Embedded Artists

Specifications of EA-QSB-010

• Processor To Be Evaluated: LPC2148
• Data Bus Width: 16 bit, 32 bit
• Interface Type: RS-232, USB, I2C, SPI, UART
• Core: ARM7TDMI-S
• Dimensions: 59 mm x 39.5 mm
• Maximum Operating Temperature: + 85 C
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
10. Application information
LPC2141_42_44_46_48_4
Product data sheet
Fig 8.
Fig 9.
Fig 10. LPC2141/42/44/46/48 USB interface using the CONNECT function on pin 17
t
PERIOD
differential
data lines
External clock timing (with an amplitude of at least V
Differential data-to-EOP transition skew and EOP width
10.1 Suggested USB interface solutions
9.1 Timing
LPC2141/42/
44/46/48
n
differential data to
crossover point
SE0/EOP skew
t
PERIOD
+ t
FDEOP
t
Rev. 04 — 17 November 2008
CHCL
CONNECT
V
VBUS
D
D
V
DD
SS
R S = 33
R S = 33
t
CLCX
crossover point
R1
1.5 k
i(RMS)
soft-connect switch
T
extended
cy(clk)
= 200 mV)
t
LPC2141/42/44/46/48
CLCH
t
Single-chip 16-bit/32-bit microcontrollers
CHCX
002aab563
002aaa907
source EOP width: t
receiver EOP width: t
USB-B
connector
© NXP B.V. 2008. All rights reserved.
FEOPT
002aab561
EOPR1
, t
EOPR2
34 of 40