参数资料
型号: DS2118MB+
厂商: Maxim Integrated Products
文件页数: 8/10页
文件大小: 0K
描述: IC TERM SCSI LVD/SE ULT-3 36SSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 31
类型: SCSI,LVD,SE
端子数: 9
电源电压: 4 V ~ 5.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 36-BSOP(0.295",7.50mm 宽)
供应商设备封装: 36-SSOP
包装: 管件
产品目录页面: 1431 (CN2011-ZH PDF)
DS2118M
7 of 10
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, 3
NC
No Connection. Do not connect these pins.
4–7, 11–16,
22–25, 29–32
RxP,
RxN
Signal Termination. Connect to SCSI bus signal lines.
8, 10, 26, 9,
28, 27
HS GND
Heat Sink Ground. Internally connected to the mounting pad. Should
be grounded.
17
ISO
Isolation. When pulled high, the DS2118M isolates its bus pins (RxP,
FxP) from the SCSI bus.
18
GND
Ground. Signal ground; 0V.
19
MSTR/SLV
Master/Slave. Mode-select for the noncontrolling terminator. When
pulled high (MSTR), the DIFFSENSE driver is enabled.
20
DIFFSENSE DIFFSENSE. Output to drive the SCSI bus DIFFSENS line.
21
DIFF_CAP
DIFFSENSE Capacitor. Connect 0.1F capacitor for DIFFSENSE
filter. Input to detect the type of device (differential or single-ended) on
the SCSI bus.
33
SE
Single-Ended. SE output of DIFFSENSE receiver; indicates SE bus
operation.
34
LVD
Low-Voltage Differential. LVD output of DIFFSENSE receiver;
indicates LVD bus operation.
35
HVD
High-Voltage Differential. HVD output of DIFFSENSE receiver;
indicates HVD bus operation or thermal shutdown.
36
TPWR
Termination Power. Connect to the SCSI TERMPWR line and
decouple with 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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DS2118MB+T&R 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 36SSOP