DS21T05 Dallas Semiconducotr, DS21T05 Datasheet - Page 4

• Manufacturer Part Number: DS21T05
• Description: SCSI Terminator
• Manufacturer: Dallas Semiconducotr

PIN DESCRIPTION Table 1
DS21T05Z
PIN
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
TERMPWR1
TERMPWR2
SYMBOL
VREF1
VREF2
GND
NC
R1
R2
R3
R4
R5
R6
R7
R8
R9
PD
Termination Power 1. Should be connected to the SCSI TERMPWR
line. Must be decoupled with either a 2.2 µF or 4.7 µF. See Figure 2.
Signal Termination 1. 110-ohm termination.
Signal Termination 2. 110-ohm termination.
Signal Termination 3. 110-ohm termination.
Signal Termination 4. 110-ohm termination.
Signal Termination 5. 110-ohm termination.
Reference Voltage 1. Must be externally connected directly to the
VREF2 pin. Must be decoupled with a 4.7 µF capacitor as shown in
Figure 2.
Ground. Signal ground; 0.0V.
Termination Power 2. Should be connected to the SCSI TERMPWR
line. Must be decoupled with either a 2.2 µF or 4.7 µF. See Figure 2.
No Connect. Do not connect any signal to this pin.
Signal Termination 6. 110-ohm termination.
Signal Termination 7. 110-ohm termination.
Signal Termination 8. 110-ohm termination.
Signal Termination 9. 110-ohm termination.
Reference Voltage 2. Must be externally connected directly to the
VREF1 pin. Must be decoupled with a 4.7 µF capacitor as shown in
Figure 2.
Power Down. When tied low, the DS21T05 enters a power-down
mode. Contains an internal 50K pull-up. Strap low to deactivate the
DS21T05, leave open circuited to activate the DS21T05.
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DESCRIPTION
DS21T05