IP4254CZ8-4 NXP Semiconductors, IP4254CZ8-4 Datasheet - Page 9

• Manufacturer Part Number: IP4254CZ8-4
• Description: DIODE,ESD,4 CH,PASSIVE FILTER,SOT983-1
• Manufacturer: NXP Semiconductors

Specifications of IP4254CZ8-4

• Operating Voltage: 1.5V
• Svhc: No SVHC (18-Jun-2010)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
IP4251_52_53_54_3
Product data sheet
The capacitance values specified for the signal channels of the MMC interface differ from
the SD(HC) specification. The MMC card side interface is specified to have an intrinsic
capacitance of 12 pF to 18 pF and the total channel is limited according the specification
to 30 pF only. Therefore, any filter device capacitance is limited to a maximum of up to
18 pF, including the card holder and PCB traces.
Please refer to
MultiMediaCard interface application.
Fig 7.
DAT3/CD pull-up
10 k
electrical card detect
INTERFACE
DAT3/CD pull-up
to HOST
optional:
Example of IP4252 in an SD(HC) card interface
depends on
exact value
logic levels
100 k
required
270 k
Figure 8
DAT1
DAT0
CLK
CMD
DAT3/CD
DAT2
CD
WP
Rev. 03 — 6 May 2009
for a general example of the implementation of the IP4252 in a
V
Integrated 4-, 6- and 8-channel passive filter network
CC
2-additional channels
(V
of IP4252CZ16-8
SD
optional:
)
(IP4252CZ16-8)
IP4252CZ12-6
pull-up resistors
10 k
write protect switch
100 k
optional:
WP
card detect switch
IP4251/52/53/54
optional:
CD
V
DAT3/CD
CC
DAT1
DAT0
(V
DAT2
CMD
GND
CLK
SD
)
© NXP B.V. 2009. All rights reserved.
SD MEMORY
SET_CLR_
CARD_DETECT
(ACMD42)
10 k
CARD
90 k
001aaj310
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