cn8223 Mindspeed Technologies, cn8223 Datasheet - Page 136
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cn8223
Manufacturer Part Number
cn8223
Description
Atm Transmitter/receiver With Utopia Interface
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8223.pdf
(161 pages)
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4.0 Electrical and Mechanical Specifications
4.2 DC Characteristics
4-2
4.2 DC Characteristics
All input and bidirectional pins have input thresholds compatible with CMOS
drive levels except those labeled as xxxHS±. Leakage current for each pin is less
than 10 µA in any state. This device should be handled as an ESD-sensitive
device. Voltage on any signal pin that exceeds the power supply voltage by more
than +0.5 V can induce destructive latchup.
have drive current I
TCLKO, which are 8 mA drivers. The interrupt output pins are open drain and
require external pull-up resistors. All output and bidirectional pins (except those
labeled xxxHS±) have CMOS drive levels and can be used with CMOS or TTL
logic.
PECL level inputs for use in E4 and STS-3c/STM-1 modes. These inputs are
automatically selected in these modes and have input thresholds of V dd – 1.3 V .
The PECL inputs should have V
and TCLKO_HS± outputs are differential PECL outputs for use in E4 and
STS-3c/STM-1 modes. The “HS±” outputs are active at all times and should be
used (in E4 or STS-3c/STM-1 modes) in place of the TXOUT[0] and TCLKO
outputs, respectively. The “non-HS±” outputs are automatically disabled in E4 or
STS-3c/STM-1 modes to reduce switching noise injection into the IC. The
switching threshold is at 3.7 V with a V
resistor termination) and V
output pins.
At V
The RXCKI_HS±, TXCKI_HS±, and RXIN_HS± inputs are differential
All timing measurements in the following tables are with 20 pF loading on the
OL(max)
= 0.4 V and V
OL
Conexant
= 4 mA and I
OH(min)
OL(min)
IL
ATM Transmitter/Receiver with UTOPIA Interface
= 3.4 V and V
of 4.1 V (driver on).
OH
= 2.4 V, all output and bidirectional pins
OL(max)
= – 4 mA except for TXOUT[0] and
of 3.3 V (driver off with external
IH
= 4.0 V. The TXOUT_HS±
100046D
CN8223
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