ss8219g Silicon Standard Corporation, ss8219g Datasheet

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ss8219g

Manufacturer Part Number
ss8219g
Description
Ultra320 Multi-mode Lvd/se Scsi Terminator
Manufacturer
Silicon Standard Corporation
Datasheet
12/06/2005 Rev.3.01
PRODUCT SUMMARY
APPLICATIONS
PIN CONFIGURATION
FEATURES
Tolerance of 5% on termination resistance
Available in 28 pin TSSOP or 36 pin SSOP
SPI mode auto-detection/switching.
Meets SCSI-1, SCSI-2, SCSI-3 SPI Ultra (Fast-20),
Supports active negation
Channel capacitance of 3pF
Operation from 2.9V to 5.5V
Hot-swap compatible
High performance data storage systems in servers,
workstations, high-end and industrial PCs, and RAID
disk arrays.
Pin/pin compatible with popular industry
Auto-selectable single-ended or LVD termination
Thermal protection
Pb-free, RoHS compliant.
standard parts DS2118/9 and UCC5672
Ultra 2 (SPI-2 LVD), Ultra160 (SPI-3 LVD)
and Ultra320 (SPI-4 LVD) standards
NC/ HS GND
NC/ HS GND
DISCNCT
DISCNCT
VREF
VREF
GND
GND
R1+
R1+
R2+
R2+
R4+
R4+
R5+
R5+
R3+
R3+
R1-
R1-
R2-
R2-
R3-
R3-
R4-
R4-
R5-
R5-
10
10
11
11
12
12
13
13
14
14
1
1
2
2
3
3
4
4
6
6
7
7
8
8
9
9
5
5
Ultra320 Multi-mode LVD/SE SCSI Terminator
28 pin TSSOP
24
24
23
23
22
22
19
19
18
18
16
16
28
28
27
27
26
26
25
25
21
21
20
20
17
17
15
15
www.SiliconStandard.com
DIFFB
DIFFB
DIFFSENSE
DIFFSENSE
TPWR
TPWR
TPWR
TPWR
R9-
R9-
R9+
R9+
R8-
R8-
R8+
R8+
NC/ HS GND
R7-
R7-
R7+
R7+
R6-
R6-
R6+
R6+
M/S
M/S
DESCRIPTION
DISCNCT
The SS8219G multi-mode LVD/SE SCSI terminator
provides a smooth transition between modes of the
SCSI Parallel Interface. It automatically senses the bus
via DIFFSENS and switches the termination to either
single-ended (SE) or low voltage differential (LVD) SCSI,
based on which type of devices are connected to the bus.
If the SS8219G detects an HVD SCSI device, it switches
to a high impedance state.
A 16-bit wide SCSI bus requires three SS8219G for
termination.
This multi-mode terminator contains all the functions
to terminate, auto detect and switch modes for SCSI
Parallel Interface (SPI) bus architectures.
For SE termination, one regulator and nine precision 110
resistors are used.
For LVD termination, the SS8219G integrates 18 regulated
supplies with nine precision resistor strings.
HS/GND
HS/GND
HS/GND
VREF
GND
R1+
R2+
R4+
R3+
R5+
R2-
R3-
R1-
R4-
R5-
NC
NC
10
10
15
15
18
18
11
11
12
12
13
13
14
14
16
16
17
17
1
1
2
2
3
3
4
4
8
8
5
5
6
6
7
7
9
9
36 pin SSOP
29
29
36
36
35
35
34
34
33
33
32
32
31
31
30
30
28
28
27
27
26
26
25
25
24
24
23
23
22
22
21
21
20
20
19
19
TPWR
LVD
R8+
HS/GND
HS/GND
DIFFB
HVD
SE
R9-
R9+
R8-
HS/GND
R7-
R7+
R6+
DIFFSENSE
R6-
M/S
SS8219G
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Related parts for ss8219g

ss8219g Summary of contents

Page 1

... DIFFSENS and switches the termination to either single-ended (SE) or low voltage differential (LVD) SCSI, based on which type of devices are connected to the bus. If the SS8219G detects an HVD SCSI device, it switches to a high impedance state. A 16-bit wide SCSI bus requires three SS8219G for termination ...

Page 2

... DIFFSENS - refers to the SCSI bus signal. DIFFSENSE - refers to the SS8219G pin name and internal circuitry related to differential sensing. DIFFB - refers to the SS8219G pin name and internal circuitry related to monitoring the DIFFSENS line. The SS8219G is used in multi-mode active-termination applications where single ended (SE) and low voltage differential (LVD) devices might coexist ...

Page 3

... RTO P1 RTO P1 R1- R1- RMID1 RMID1 R1+ R1+ RBO T1 RBO BOT1 V BOT1 www.SiliconStandard.com SS8219G CO NTROL CO NTROL DIFFB DIFFB LOG IC LOG IC R1- R1- R9- R9- RTO P9 RTO P9 R1- R1- R9- R9- R9- R9- RMID9 RMID9 R1+ R1+ R9+ R9+ R9+ R9+ RBO T9 RBO T9 ...

Page 4

... DIFFB DIFFB VREF VREF VREF 0.1µF 0.1µF 0.1µF 4.7µF 4.7µF 4.7µF TPWR TPWR TPWR 2.2µF 2.2µF 2.2µF M/S M/S M/S DISCNCT DISCNCT DISCNCT SS8219G DIFFB DIFFB DIFFB VREF VREF VREF 4.7µF 4.7µF 4.7µF TPWR TPWR TPWR 2.2µF 2.2µF 2.2µF M/S M/S M/S DISCNCT DISCNCT DISCNCT SS8219G DIFFB ...

Page 5

... I V =0.4 volts; SE/LVD/HVD Pins only ol out V seor V lvdor V hvdor V M/S= 0-5mA dso =0V dsh dso I M/S=1; V =2.75V dsl dso www.SiliconStandard.com SS8219G MAX UNITS 5.5 V 5.5 +0 +0.3 V tpwr 70 °C MIN TYP MAX UNITS Ω 100 105 110 Ω 110 150 190 100 ...

Page 6

... Differential Mode Termination Resistance Rdm vs. Temperature 110 T=80ºC 108 106 104 102 100 4.5 5.5 -20 www.SiliconStandard.com SS8219G Common Mode Bias Vcm vs. Temperature V =5.8V tpwr V =2.8V tpwr 100 Temperature(ºC) Differential Mode Bias Vdm vs. Temperature@Vtpwr= 100 Temperature(º ...

Page 7

... SS8219G vs. Vtpwr at Vline=0V V =3.8V tpwr V =5.8V tpwr 100 Temperature(ºC) Vref vs. Ivref at Vtpwr=5V T=80ºC T=-10ºC 50 150 250 350 Ivref(mA) Vref vs. Vtpwr at T=24ºC I =-200mA vref I =0mA vref I =360mA vref 4.5 5.5 Vtpwr ...

Page 8

... NC/ HS GND No Connect/Heat Sink Ground. Should be grounded for heat sinking purpose 13 DISCNCT Disconnect. When pulled high, the SS8219G isolates its bus pins (Rx+, Rx-) from the SCSI bus. 14 GND Ground. Terminator ground pin. Connected to ground. Master/slave. Used to select which terminator is the controlling device. M/S pin high enables ...

Page 9

... SS8219G DIMENSION IN INCH TYP. MAX. 0.102 0.110 0.012 0.016 0.018 0.010 0.625 0.630 0.032 BASIC 0.420 0.295 0.289 0.025 0.040 8º ...

Page 10

... Silicon Standard Corporation or any third parties. 12/10/2005 Rev.3. NOM. MAX. MIN. ----- 1.20 ----- ----- 0.15 0.002 1.00 1.05 0.031 ----- 0.30 0.007 ----- 0.20 0.004 9.70 9.80 0.378 6.40 ----- ----- 4.40 4.50 0.169 0.65 ----- ----- 0.60 0.75 0.018 ----- 0.10 ----- ----- 8º 0º www.SiliconStandard.com SS8219G L DIMENSION IN INCH NOM. MAX. ----- 0.048 ----- 0.006 0.039 0.041 ----- 0.012 ----- 0.008 0.382 0.386 0.252 ----- 0.173 0.177 0.026 ----- 0.024 0.030 ----- 0.004 ----- 8º ...

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