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参数资料
| 型号： | SN74HC259PWT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 锁存器 |
| 英文描述： | HC/UH SERIES, LOW LEVEL TRIGGERED D LATCH, TRUE OUTPUT, PDSO16 |
| 封装： | GREEN, PLASTIC, TSSOP-16 |
| 文件页数： | 12/21页 |
| 文件大小： | 810K |
| 代理商： | SN74HC259PWT |
SN54HC259, SN74HC259
8BIT ADDRESSABLE LATCHES
SCLS134E DECEMBER 1982 REVISED SEPTEMBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
Four distinct modes of operation are selectable by controlling the clear (CLR) and enable (G) inputs. In the
addressable-latch mode, data at the data-in terminal is written into the addressed latch. The addressed latch
follows the data input, with all unaddressed latches remaining in their previous states. In the memory mode, all
latches remain in their previous states and are unaffected by the data or address inputs. To eliminate the
possibility of entering erroneous data in the latches, G should be held high (inactive) while the address lines
are changing. In the 1-of-8 decoding or demultiplexing mode, the addressed output follows the level of the
D input with all other outputs low. In the clear mode, all outputs are low and unaffected by the address and data
inputs.
Function Tables
FUNCTION
INPUTS
OUTPUT OF
ADDRESSED
EACH
OTHER
FUNCTION
CLR
G
ADDRESSED
LATCH
OTHER
OUTPUT
FUNCTION
H
L
D
QiO
Addressable latch
H
HQiO
QiO
Memory
L
LD
L
8-line demultiplexer
L
H
L
Clear
LATCH SELECTION
SELECT INPUTS
LATCH
S2
S1
S0
LATCH
ADDRESSED
L
0
L
LH
1
L
HL
2
L
HH
3
H
LL
4
H
LH
5
H
HL
6
H
7
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| SN74HC273PWT | HC/UH SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20 |
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相关代理商/技术参数 |
参数描述 |
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| SN74HC259PWTE4 | 功能描述:闭锁 8-Bit Addressable 闭锁 RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74HC259PWTG4 | 功能描述:闭锁 8B Addressable Latch RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74HC266D | 功能描述:逻辑门 Quad 2-Input w/ OD RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量（输入/输出）:2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel |
| SN74HC266DE4 | 功能描述:逻辑门 Quadruple 2-Input Exclusive-NOR Gate RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量（输入/输出）:2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel |
| SN74HC266DG4 | 功能描述:逻辑门 QUAD 2 Input Exclusive NOR Gates RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量（输入/输出）:2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel |
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