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參數資料
| 型號： | 74F604 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Dual octal latch 3-State |
| 中文描述： | 雙八進制鎖存器三態 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 53K |
| 代理商： | 74F604 |
Philips Semiconductors
Product specification
74F604
Dual octal latch (3-State)
1
1990 Mar 01
853–0029 98991
FEATURES
High impedance NPN base inputs for reduced loading
(20
μ
A in High and Low states)
Stores 16-bit–wide Data inputs, multiplexed 8-bit outputs
3-State outputs
Power supply current 75mA typical
DESCRIPTION
The 74F604 multiplexed latch is ideal for storing data from two input
buses, A or B, and providing data from either the A or B latches to
the output bus. Organized as 8-bit A and B latches, the latch outputs
are connected by pairs to eight 2-input multiplexers. A Select
(SELECT A/B) input determines whether the A or B latch contents
are multiplexed to the eight 3-State outputs. Data entered from the B
inputs are selected when SELECT A/B is Low; data from the A
inputs are selected when SELECT A/B is High. Data enters the
latches when the Latch Enable (LE) input is Low and is latched on
the LE rising edge. The outputs are enabled when LE is High and
disabled when LE is Low.
PIN CONFIGURATION
28
27
26
25
24
23
22
7
6
5
4
3
2
1
A2
V
CC
B5
A6
B6
A5
A4
B4
LE
SELECT A/B
B1
A0
B0
A1
SF01115
21
8
B2
A7
20
19
18
17
16
13
12
11
10
9
Q1
Q6
Q5
Q4
Q7
B7
Q2
A3
B3
Q3
15
14
GND
Q0
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY CURRENT
(TOTAL)
74F604
7.5ns
75mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
±
10%, T
amb
= 0
°
C to +70
°
C
28-pin plastic DIP
N74F604N
28-pin plastic SOL
N74F604D
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
A0–A7, B0–B7
Data inputs
1.0/0.033
20
μ
A/20
μ
A
20
μ
A/20
μ
A
20
μ
A/20
μ
A
SELECT A/B
Select input
1.0/0.033
LE
Latch Enable input (active Low)
1.0/0.033
Q0–Q7
Data outputs
150/40
3mA/24mA
NOTE:
One (1.0) FAST unit load is defined as: 20
μ
A in the High state and 0.6mA in the Low state.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74F620 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Inverting Octal Bus Transceiver with 3-STATE Outputs |
| 74F620 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F620N | 制造商:NXP Semiconductors 功能描述: |
| 74F620PC | 功能描述:總線收發器 Inv Oct Bus Trans RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74F621 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal bus transceiver, non-inverting open collector |
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