DS2119ME Maxim Integrated Products, DS2119ME Datasheet - Page 6

• Manufacturer Part Number: DS2119ME
• Description: IC TERM SCSI LVD/SE ULT3 28TSSOP
• Manufacturer: Maxim Integrated Products
• Type: SCSI, LVD, SEr

Specifications of DS2119ME

• Number Of Terminations: 9
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: 0 C to + 70 C
• Product: SCSI
• Resistance: 110 Ohms
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIN DESCRIPTION
RECOMMENDED OPERATING CONDITIONS
Termpower
Voltage
Logic 0
Logic 1
Operating Temperature
18–21, 23–26
2–5, 7–12,
27, 28
6, 22
PIN
13
14
15
16
17
1
PARAMETER
DIFFSENSE DIFFSENSE. Output to drive the SCSI bus DIFFSENS line.
MSTR/SLV
DIFF_CAP
SE Mode
LVD Mode
HS GND
NAME
TPWR
VREF
GND
RxP,
RxN
ISO
Reference Voltage. 2.85V reference in SE mode and 1.25V reference in
LVD mode; must be decoupled with a 4.7µF cap.
Signal Termination. Connect to SCSI bus signal lines.
Heat Sink Ground. Internally connected to the mounting pad. Should
be grounded.
Isolation. When pulled high, the DS2119M isolates its bus pins (RxP,
RxN) from the SCSI bus.
Ground. Signal ground; 0V.
Master/Slave. Mode-select for the noncontrolling terminator. When
pulled high, MSTR enables the DIFFSENSE driver.
DIFFSENSE Capacitor. Connect a 0.1µF capacitor for DIFFSENSE
filter. Input to detect the type of device (differential or single-ended) on
the SCSI bus.
Termination Power. Connect to the SCSI TERMPWR line and
decouple with a 2.2µF capacitor.
V
SYMBOL
V
TPWR(LVD)
TPWR(SE)
V
V
V
AMB
IH
IL
6 of 9
MIN
-0.3
4.0
2.7
2.0
0
FUNCTION
TYP
V
MAX
TPWR
+0.8
5.5
5.5
0.3
70
+
UNITS
°C
V
V
V
V
NOTES