參數(shù)資料
型號(hào): 74F456
廠商: NXP Semiconductors N.V.
英文描述: Octal buffer/driver with parity,non-inverting (3-State)(帶奇偶的八緩沖器/驅(qū)動(dòng)器,同相(三態(tài)))
中文描述: 八路緩沖器/驅(qū)動(dòng)器與平等,非反相(3態(tài))(帶奇偶的八緩沖器/驅(qū)動(dòng)器,同相(三態(tài)))
文件頁(yè)數(shù): 2/10頁(yè)
文件大?。?/td> 87K
代理商: 74F456
Philips Semiconductors
Product specification
74F456
Octal buffer/driver with parity, non-inverting (3-State)
2
2000 Aug 01
853–0371 24250
FEATURES
High impedance NPN base inputs for reduced loading
(40
μ
A in High and Low states)
74F456 combines 74F244 and 74F280A functions in one package
74F456 is a center pin version of the 74F656A
Non-Inverting
3-State outputs sink 64mA and source 15mA
24-pin plastic Slim DIP (300 mil) package
Broadside pinout simplifies PC board layout
DESCRIPTION
The 74F456 is an octal buffer and line driver with parity
generation/checking designed to be employed as memory address
drivers, clock drivers and bus-oriented transmitters/receivers. These
parts include parity generator/checker to improve PC board density.
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY CURRENT
(TOTAL)
74F456
7.5ns
64mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL
RANGE
V
CC
= 5V
±
10%,
T
amb
= 0
°
C to +70
°
C
PKG DWG #
24-pin plastic Slim
DIP (300mil)
N74F456N
SOT222-1
24-pin plastic SOL
N74F456D
SOT137-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
40
μ
A/40
μ
A
20
μ
A/20
μ
A
20
μ
A/20
μ
A
15mA/64mA
15mA/64mA
D0–D7
PI
OE0, OE1
Σ
E,
Σ
O
Q0–Q7
NOTE:
One (1.0) FAST Unit Load (U.L.) is defined as 20
μ
A in the High state and 0.6mA in the Low state.
Data inputs
Parity input
Output Enable inputs (active Low)
Parity outputs
Data outputs
2.0/0.066
1.0/0.033
1.0/0.033
750/106.7
750/106.7
PIN CONFIGURATION
24
23
22
21
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
OE0
OE1
PI
D0
D1
D2
D3
D4
D5
D6
D7
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
Σ
E
Σ
O
GND
GND
V
CC
SF00958
LOGIC SYMBOL
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE0
OE1
PI
Σ
E
Σ
O
4
5
6
8
9
10
11
12
23
24
1
2
3
22
21
20
17
16
15
14
13
SF00960
V
GND = Pin 18, 19
= Pin 7
相關(guān)PDF資料
PDF描述
74F50109 Synchronizing dual J-K positive edge-triggered flip-flop with metastable immune characteristics
74F597 8-bit shift register with input storage registers(帶輸入存儲(chǔ)寄存的8位移位寄存器(三態(tài)))
74F50728 Synchronizing cascaded dual positive edge-triggered D-type flip-flop
74F50729 Synchronizing dual D-type flip-flop with edge-triggered set and reset with metastable immune characteristics
74F5074 Synchronizing dual D-type flip-flop/clock driver(同步雙D觸發(fā)器/時(shí)鐘驅(qū)動(dòng)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74F475AI 功能描述:固定電感器 47uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
74F475AI-RC 功能描述:固定電感器 47uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
74F476AP 功能描述:固定電感器 4.7uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
74F476AP-RC 功能描述:固定電感器 4.7uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
74F50109 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Synchronizing dual J-K positive edge-triggered flip-flop with metastable immune characteristics