参数资料
| 型号： | PI74LVCC3245ALE |
| 厂商： | Pericom |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCVR 8BIT N-INV 24TSSOP |
| 产品变化通告： | Product Discontinuation Notice 22/Jan/2010 |
| 标准包装： | 62 |
| 系列： | 74LVCC |
| 逻辑功能： | 变换器，3 态 |
| 位数： | 8 |
| 输入类型： | 电压 |
| 输出类型： | 电压 |
| 通道数： | 8 |
| 输出/通道数目： | 1 |
| 差分 - 输入:输出： | 无/无 |
| 传输延迟（最大）： | 5.6ns |
| 电源电压： | 2.7 V ~ 3.6 V，3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
PI74LVCC3245A
8-Bit Dual Supply Bus Transceiver with
Configurable Output Voltage and 3-State Outputs
6
PS8702A
09/10/03
PARAMETER MEASUREMENT INFORMATION FOR A TO B PORT
VCCA =2.7V TO 3.6V and VCCB = 5V ± 0.5V
Load Circuit
Voltage Waveforms
Propagation Delay Times
Voltage Waveforms
Enable and Disable Times
Notes:
A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
500
2xVCCB
Open
GND
S1
From Output
Under Test
CL = 50pF
(See Note A)
500Ω
50
Input
tPLH
tPHL
0V
B-Port
Output
VOH
VOL
1.5V
2.7V
50% VCCB
tPZL
Output
Control
0V
1.5V
50% VCCB
1.5V
tPLZ
tPHZ
VOL
VCCB
0V
tPZH
+0.3V
–0.3V
Output
Waveform 1
S1 at 2 x VCCB
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOH
VOL
2.7V
50% VCCB
Power- Up Considerations
To avoid excessive supply current, bus contention or oscillation during power-up, the following guidelines should be followed:
1. Connect ground first before any supply voltage is applied.
2. Power up VCCA, which is the control side of the device.
3. Ramp OE ahead of or with VCCA to help prevent bus contention
4. Ramp DIR with VCCA if DIR high is needed (A bus to B bus). Otherwise keep DIR Low.
Test
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2 x VCCB
GND
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相关代理商/技术参数 |
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| PI74LVCC3245ALEX | 功能描述:总线收发器 8B Dual Supply Bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| PI74LVCC3245ALX | 制造商:Pericom Semiconductor Corporation 功能描述: |
| PI74LVCC3245AQE | 功能描述:总线收发器 8B Dual Supply Bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| PI74LVCC3245AQEX | 功能描述:总线收发器 8B Dual Supply Bus Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| PI74LVCC3245AS | 制造商:Pericom Semiconductor Corporation 功能描述: |
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