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參數(shù)資料
| 型號： | SN74HC259PWT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 鎖存器 |
| 英文描述： | HC/UH SERIES, LOW LEVEL TRIGGERED D LATCH, TRUE OUTPUT, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 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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| SN74HC259PWTE4 | 功能描述:閉鎖 8-Bit Addressable 閉鎖 RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| SN74HC259PWTG4 | 功能描述:閉鎖 8B Addressable Latch RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時(shí)間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| SN74HC266D | 功能描述:邏輯門 Quad 2-Input w/ OD RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74HC266DE4 | 功能描述:邏輯門 Quadruple 2-Input Exclusive-NOR Gate RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74HC266DG4 | 功能描述:邏輯門 QUAD 2 Input Exclusive NOR Gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時(shí)間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
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