ISP1508AET NXP Semiconductors, ISP1508AET Datasheet - Page 6

• Manufacturer Part Number: ISP1508AET
• Description: RF Transceiver USB 2.0 ULPI TRNSCVR
• Manufacturer: NXP Semiconductors

Specifications of ISP1508AET

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283548118 ISP1508AET-T

NXP Semiconductors
Table 2.
ISP1508A_ISP1508B_1
Product data sheet
Symbol
DM
RREF
CHIP_SEL
TEST_N
DATA7
DP
ID
PSW_N
NXT
STP
CFG0
FAULT
REG3V3
GND
DIR
REG1V8
n.c.
[1]
Pin description
Pin
C1
C2
C3
C4
C6
D1
D3
D4
D5
D6
E1
E2
E3
C5, D2, E4 P
E5
E6
F1, F2
Type
AI/O
AI/O
I
I
I/O
AI/O
I
OD
O
I
I
I
P
O
P
-
…continued
[2]
Description
connect to the D pin of the USB connector
resistor reference; connect through a 12 k
ISP1508A: active HIGH chip select input; if this pin is not in use, connect it to V
ISP1508B: active LOW chip select input; if this pin is not in use, connect it to GND
plain input
directly connect to V
plain input
ULPI data pin 7; when DDR mode is selected, this pin can be left open
3-state output; plain input
connect to the D+ pin of the USB connector
identification (ID) pin of the micro-USB connector; if this pin is not in use, leave it open
(an internal 400 k pull-up resistor is present on this pin)
plain input; TTL
active LOW external V
open-drain output; 4 mA current sinking capability; 5 V tolerant
ULPI next signal
3-state output
ULPI stop signal
plain input
Select SDR or DDR ULPI interface
plain input; TTL
input for the V
connect it to GND
plain input; 5 V tolerant
3.3 V regulator output for USB mode or 2.7 V regulator output for UART mode; requires
parallel 0.1 F and 4.7 F capacitors; internally powers ATX and other analog circuits;
must not be used to power external circuits
ground supply
ULPI direction signal
3-state output
1.8 V regulator output; requires parallel 0.1 F and 4.7 F capacitors; internally powers
the digital core; must not be used to power external circuits
not connected; leave this pin open
•
•
•
•
•
•
•
•
USB mode: D input or output
UART mode: TXD output
When this pin is not active, ULPI pins will be in 3-state and the ISP1508 is in
power-down mode.
When this pin is active, ULPI pins will operate normally.
USB mode: D+ input or output
UART mode: RXD input
SDR: connect this pin to GND
DDR: connect this pin to REG3V3
[3]
Rev. 01 — 14 August 2007
BUS
digital overcurrent or fault detector signal; if this pin is not in use,
CC(I/O)
BUS
power switch or external charge pump enable
for normal operation
ISP1508A; ISP1508B
1 % resistor to GND
ULPI HS USB transceiver
© NXP B.V. 2007. All rights reserved.
CC(I/O)
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