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UCC5696 Datasheet(PDF) 1 Page - Texas Instruments

Part No. UCC5696
Description  27 LINE LVD ONLY SCSI TERMINATOR FOR SPI-5
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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UCC5696 Datasheet(HTML) 1 Page - Texas Instruments

 
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UCC5696
SLVS406B – JUNE 2002 – REVISED JUNE 2003
27LINE LVD ONLY SCSI TERMINATOR FOR SPI5
1
www.ti.com
FEATURES
D Meets Ultra2 (SPI-2 LVD SCSI), Ultra3, Ultra
160 (SPI-3), Ultra320 (SPI-4), and Ultra640
(SPI-5) Standards
D 2.7-V to 5.25-V Termpwr Operation
D Differential Fail-Safe Bias
D I2C Bus Adjustable Impedance and
Differential Bias Current
D 80-Pin Low Profile Quad Flat Pack Package
(QFP)
APPLICATION DIAGRAM
DESCRIPTION
The UCC5696 is a 27-line LVD only SCSI
programmable terminator. The nominal settings
on power up are compliant to SPI-2 through SPI-4.
The programmable settings are used for SPI-5.
The UCC5696 uses the I2C to program the
differential impedance and the differential bias
current.
The
differential
impedance
is
programmed in 5-
Ω increments from 55 Ω to
130
Ω using 4 bits (16 steps). The differential bias
current is programmed in 50
µA from 0.7 mA to
1.45 mA using 4 bits (16 steps). The UCC5696
has the SPI-3 mode change delay, the typical
value is 200 ms.
UDG–01093
REG
TERMPWR
ICAD0
Termpower
7
49
15
10
DIFSENS
CONTROL LINES (9)
1
2
30
29
L1+
L1–
L9+
L9–
DATA (9)
LOW BYTE 0–7
+ PARITY LINES
32
31
61
62
L10+
L10–
L18+
L18–
63
64
79
80
L19+
L19–
L27+
L27–
52
DISCNCT
ICBD
50
4.7
µF
UCC5696
4.7
µ F
DATA (9)
HIGH BYTE 8–15
+ PARITY LINES
TERMPWR
REG
15
10
7
DIFSENS
1
2
30
29
L1+
L1–
L9+
L9–
32
31
61
62
L10+
L10–
L18+
L18–
Termpower
63
64
79
80
L19+
L19–
L27+
L27–
52
UCC5696
4.7
µ F
4.7
µF
ICBC
51
16
DIFFB
16
DIFFB
ICAD6
43
49
50
51
43
ICAD0
ICBD
ICBC
ICAD6
I2 CBUS
I2 CBUS
DISCNCT
54
54
8
PVDD
8
PVDD
GND
GND
I2 C Address
20 k
20 k
0.1
µF
0.1
µF
I2 C Address
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
 2002, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.


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