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參數(shù)資料
| 型號： | ISL33003IUZ-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC BUS BUFF HOTSWAP 2WR 8MSOP |
| 標準包裝： | 2,500 |
| 類型： | 緩沖器 |
| Tx/Rx類型： | I²C Logic |
| 電容 - 輸入： | 10pF |
| 電源電壓： | 2.3 V ~ 5.5 V |
| 電流 - 電源： | 4mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 帶卷 (TR) |
| 配用： | ISL33003MSOPEVAL1Z-ND - EVAL BOARD ISL33003 8MSOP |
ISL33001, ISL33002, ISL33003
10
FN7560.5
December 19, 2013
accelerator current on both sides of the buffer will be equal. If the
pull-up resistance on both sides of the buffer are also equal, then
differences in the rise time will be proportional to the difference
in capacitive loading on the two sides.
Because the signals on each side of the buffer rise
independently, the propagation delay can be positive or negative.
If the input side rises slowly relative to the output (i.e., heavy
capacitive loading on the input and light load on the output) then
the propagation delay tPLH is negative. If the output side rises
slowly relative to the input, tPLH is positive.
For high to low transitions, there is a finite propagation delay
through the buffer from the time an external low on the input
drives the NMOS output low. This propagation delay will always
be positive because the buffer connect threshold on the falling
edge is below the measurement points of the delay. In addition
to the propagation delay of the buffer, there will be additional
delay from the different capacitive loading of the buffer. Figures
tPHL, is affected by VCC and capacitive loading.
The buffer’s propagation delay times for rising and falling edge
signals must be taken into consideration for the timing
requirements of the system. SETUP and HOLD times may need to
be adjusted to take into account excessively long propagation
delay times caused by heavy bus capacitances.
Pull-Up Resistor Selection
While the ISL33001, ISL33002, ISL33003 2-Channel buffers are
designed to improve the rise time of the bus in passive pull-up
systems, proper selection of the pull-up resistor is critical for
system operation when a buffer is used. For a bus that is
operating normally without active rise time circuitry, using the
ISL33001, ISL33002, ISL33003 buffer will allow larger pull-up
resistor values to reduce sink currents when the bus is driving
low. However, choose a pull-up resistor value of no larger than
20k regardless of the bus capacitance seen on the SDA/SCL
lines. The Bus Idle or Stop Bit condition requires valid logic high
voltages to give a valid connection state. Pull-up resistor values
20k or smaller are recommended to overcome the typical
150k impedance of the pre-charge circuitry, delivering valid
high levels.
Typical Performance Curves
CIN = COUT = 10pF, VCC1 = VCC2 = VCC, TA = +25°C; Unless Otherwise Specified.
FIGURE 11. ICC1 ENABLED CURRENT vs VCC1 (ISL33001)
FIGURE 12. ICC1 DISABLED CURRENT vs VCC1 (ISL33001)
I CC
1(m
A
)
VCC1 (V)
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
T = +85°C
T = +25°C
T = -40°C
VCC1 (V)
I CC1
(nA)
100
150
200
250
300
350
400
450
500
550
600
2.0
2.5
3.03.5
4.04.5
5.05.5
6.0
T = +85°C
T = +25°C
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| ISL33003MSOPEVAL1Z | 功能描述:EVAL BOARD ISL33003 8MSOP RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL3330 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V, ?±15kV ESD Protected, Dual Protocol RS-232/RS-485 Transceivers |
| ISL3330IAZ | 功能描述:RS-422/RS-485 接口 IC SINGLE 3 3V MULTIPRO TRANSC -40C RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| ISL3330IAZ-T | 功能描述:IC TXRX 3.3V RS232/485 20-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅(qū)動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| ISL3330IAZ-T7A | 功能描述:IC TXRX RS232/485 DUAL 20SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅(qū)動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
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