ISP1521BEUM ST-Ericsson Inc, ISP1521BEUM Datasheet - Page 37

• Manufacturer Part Number: ISP1521BEUM
• Description: IC USB HUB CONTROLLER HS 80-LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1521BEUM

• Controller Type: USB Hub
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 568-1884-2; ISP1521BE,518; ISP1521BE-T

15. Dynamic characteristics
Table 40.
[1]
[2]
Table 41.
V
Table 42.
V
[1]
CD00222695
Product data sheet
Symbol
Reset
t
t
Crystal oscillator
f
External clock input
δ
Symbol
Overcurrent sense pins OC1_N to OC7_N
t
Symbol
t
t
W(POR)
W(RESET_N)
clk
trip
t(HL)
t(LH)
CC
CC
Recommended accuracy of the clock frequency is 500 ppm for the crystal.
Suggested values for external capacitors when using a crystal are 22 pF to 27 pF.
= 3.0 V to 3.6 V; T
= 3.0 V to 3.6 V; T
All pins are 5 V tolerant.
,
Parameter
overcurrent trip response time from
OCn_N LOW to PSWn_N HIGH
Parameter
output transition time
Dynamic characteristics: system clock timing
Dynamic characteristics: overcurrent sense timing
Dynamic characteristics: digital pins
Parameter
internal power-on reset pulse
width
external RESET_N pulse width
clock frequency
clock duty cycle
amb
amb
Fig 9.
=
=
−
−
40
40
°
°
C to +70
C to +70
Overcurrent input: pins OCn_N; power switch output: pins PSWn_N.
Overcurrent trip response timing
°
°
C; unless otherwise specified.
C; unless otherwise specified.
power switch
overcurrent
Conditions
crystal
Conditions
see
Conditions
Rev. 07 — 4 February 2010
output
input
V
V
Figure 9
BUS
BUS
0 V
0 V
ΔV
trip
t
trip
[1]
[1][2]
Min
0.2
0.2
-
-
Min
-
Min
4
Hi-Speed USB hub controller
mbl032
Typ
-
-
12
50
Typ
-
Typ
-
© ST-ERICSSON 2010. All rights reserved.
ISP1521
-
Max
1
-
-
Max
15
Max
15
Unit
μs
μs
MHz
%
Unit
ms
37 of 53
Unit
ns