參數(shù)資料
型號: DS2119ME+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 6/9頁
文件大?。?/td> 0K
描述: IC TERM SCSI LVD/SE ULT3 28TSSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: SCSI,LVD,SE
端子數(shù): 9
電源電壓: 4 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 28-TSSOP
包裝: 帶卷 (TR)
DS2119M
6 of 9
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
VREF
Reference Voltage. 2.85V reference in SE mode and 1.25V reference in
LVD mode; must be decoupled with a 4.7F cap.
2–5, 7–12,
18–21, 23–26
RxP,
RxN
Signal Termination. Connect to SCSI bus signal lines.
6, 22
HS GND
Heat Sink Ground. Internally connected to the mounting pad. Should
be grounded.
13
ISO
Isolation. When pulled high, the DS2119M isolates its bus pins (RxP,
RxN) from the SCSI bus.
14
GND
Ground. Signal ground; 0V.
15
MSTR/SLV
Master/Slave. Mode-select for the noncontrolling terminator. When
pulled high, MSTR enables the DIFFSENSE driver.
16
DIFFSENSE DIFFSENSE. Output to drive the SCSI bus DIFFSENS line.
17
DIFF_CAP
DIFFSENSE Capacitor. Connect a 0.1F capacitor for DIFFSENSE
filter. Input to detect the type of device (differential or single-ended) on
the SCSI bus.
27, 28
TPWR
Termination Power. Connect to the SCSI TERMPWR line and
decouple with a 2.2F capacitor.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
SE Mode
VTPWR(SE)
4.0
5.5
V
Termpower
Voltage
LVD Mode
VTPWR(LVD)
2.7
5.5
V
Logic 0
VIL
-0.3
+0.8
V
Logic 1
VIH
2.0
VTPWR +
0.3
V
Operating Temperature
VAMB
0
70
°C
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