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参数资料
| 型号： | SN74LV393ADB |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | 通用总线功能 |
| 英文描述： | DUAL 4-BIT BINARY COUNTERS |
| 中文描述： | 双4位二进制计数器 |
| 文件页数： | 2/18页 |
| 文件大小： | 520K |
| 代理商： | SN74LV393ADB |
SCLS457D FEBRUARY 2001 REVISED APRIL 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering informaton (continued)
These devices comprise two independent 4-bit binary counters, each having a clear (CLR) and a clock (CLK)
input. These devices change state on the negative-going transition of the CLK pulse. N-bit binary counters can
be implemented with each package, providing the capability of divide by 256. The ’LV393A devices have parallel
outputs from each counter stage so that any submultiple of the input count frequency is available for system
timing signals.
These devices are fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
FUNCTION TABLE
INPUTS
CLK
↑
↓
X
FUNCTION
CLR
L
No change
L
Advance to next stage
H
All outputs L
logic diagram, each counter (positive logic)
R
T
QA
CLR
CLK
R
T
QB
R
T
QC
R
T
QD
Q
Q
Q
Q
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| SN74LV393ADBR | 功能描述:计数器 IC Dual 4-Bit Binary RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LV393ADBRE4 | 功能描述:计数器 IC Dual 4-Bit Binary Counters RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LV393ADBRG4 | 功能描述:计数器 IC Dual 4B Binary Counters RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LV393ADE4 | 功能描述:计数器 IC Dual 4-Bit Binary Counters RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
| SN74LV393ADG4 | 功能描述:计数器 IC Dual 4B Binary Counters RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
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