ISP1105 Philips Semiconductors, ISP1105 Datasheet - Page 6

• Manufacturer Part Number: ISP1105
• Description: Advanced Universal Serial Bus transceivers
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 3:
[1]
[2]
7. Functional description
9397 750 08872
Product data
Symbol
V
V
V
SOFTCON
reg(3.3)
CC(5.0)
pu(3.3)
Symbol names with an overscore (e.g. NAME) indicate active LOW signals.
Down bonded to the exposed diepad.
[1]
Pin description
Pin
ISP1105
HBCC16
13
14
15
16
7.1 Function selection
ISP1106/7
HBCC16
13
14
15
16
…continued
Table 4:
[1]
[2]
[3]
SUSPND
H
H
Signal levels on (D , D
In ‘suspend’ mode (SUSPND = HIGH) the differential receiver is inactive and output RCV is always
LOW. Out-of-suspend (‘K’) signalling is detected via the single-ended receivers VP and VM.
During suspend, the slew-rate control circuit of low-speed operation is disabled. The (D , D
are still driven to their intended states, without slew-rate control. This is permitted because driving
during suspend is used to signal remote wake-up by driving a ‘K’ signal (one transition from idle to
‘K’ state) for a period of 1 to 15 ms.
L
L
ISP1106/7
TSSOP16
15
16
1
2
Function table
OE
H
H
L
L
Rev. 06 — 30 November 2001
Type
-
-
-
I
receiving
receiving
driving &
(D , D )
high-Z
driving
are determined by other USB devices and external pull-up/down resistors.
[1]
[1]
Description
Internal regulator option: regulated supply voltage output
(3.0 to 3.6 V) during 5 V operation; a decoupling capacitor
of at least 0.1 F is required
Regulator bypass option: used as a supply voltage input
for 3.3 V operation. (3.3 V 10%)
Internal regulator option: supply voltage input
(4.0 to 5.5 V); can be connected directly to USB supply
V
Regulator bypass option: connect to V
pull-up supply voltage (3.3 V 10%); connect an external
1.5 k resistor on D (full-speed) or D (low-speed); pin
function is controlled by input SOFTCON:
SOFTCON = LOW — V
ensures zero pull-up current
SOFTCON = HIGH — V
to V
software controlled USB connection input; a HIGH level
applies 3.3 V to pin V
external 1.5 k pull-up resistor; this allows USB
connect/disconnect signalling to be controlled by software
BUS
reg(3.3)
inactive
inactive
active
active
RCV
[2]
[2]
ISP1105/1106/1107
VP/VM
active
active
active
active
pu(3.3)
pu(3.3)
pu(3.3)
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
Advanced USB transceivers
, which is connected to an
(differential receiver inactive)
floating (high impedance);
= 3.3 V; internally connected
(differential receiver active)
driving during ‘suspend’
low-power state
normal driving
Function
receiving
reg(3.3)
lines
6 of 24
[3]