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參數(shù)資料
| 型號(hào)： | 74F569 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Bit Bidirectional Counter with 3-STATE Outputs |
| 中文描述： | 4位雙向計(jì)數(shù)器具有三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 4/14頁(yè) |
| 文件大小： | 130K |
| 代理商： | 74F569 |
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Philips Semiconductors
Product specification
74F569
4-bit bidirectional binary synchronous counter (3-State)
1996 Jan 05
4
CET
SF01059
TC
CP
CET
TC
CET
TC
CET
TC
CET
TC
COUNT
CP
TO ALL STAGES
Figure 1. Multistage Counter with Ripple Carry
CET
SF01061
TC
CP
CET
TC
CEP
CET
TC
CEP
CET
TC
CEP
CET
CEP
COUNT
CP
TO ALL STAGES
LOW
Figure 2. Multistage Counter with Look-Ahead Carry
STATE DIAGRAM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
COUNT DOWN
COUNT UP
SF01058
CC FUNCTION TABLE
INPUTS
OUTPUT
SR
PE
CEP
CET
TC*
CP
CC
L
X
X
X
X
X
H
X
L
X
X
X
X
H
X
X
H
X
X
X
H
X
X
X
H
X
X
H
X
X
X
X
H
X
H
H
= TC is generated internally
H = High voltage level
L = Low voltage level
X = Don’t care
=
Low Pulse
H
L
L
L
*
FUNCTION TABLE
INPUTS
OPERATING MODE
MR
SR
PE
CEP
CET
U/D
CP
L
X
X
X
X
X
X
Asynchronous reset
h
l
X
X
X
X
↑
Synchronous reset
h
h
l
X
X
X
↑
Parallel load
h
h
h
l
l
h
↑
Count Up (increment)
h
h
h
l
l
l
↑
Count Down (decrement)
h
H
H
H
X
X
X
Hold (do nothing)
h
H
H
X
H
X
X
H = High voltage level
h = High voltage level one setup time prior to the Low-to-High clock transition
L = Low voltage level
l
= Low voltage level one setup time prior to the Low-to-High clock transition
X = Don’t care
↑
= Low-to-High clock transition
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F569PC | 4-Bit Bidirectional Counter with 3-STATE Outputs |
| 74F569SC | 4-Bit Bidirectional Counter with 3-STATE Outputs |
| 74F569SJ | 4-Bit Bidirectional Counter with 3-STATE Outputs |
| 74F574DC | Octal D-Type Flip-Flop |
| 74F574 | Octal transparent latch 3-State |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F569 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F569D | 制造商:NXP Semiconductors 功能描述: |
| 74F569DC | 制造商:NAT SEMI 功能描述: 制造商:Freescale Semiconductor 功能描述:Counter, Up/Down, 4 Bit Binary, 20 Pin, Ceramic, DIP |
| 74F569N | 制造商:SIG 功能描述:74F569 SIG'88 N15C7B 制造商:NXP Semiconductors 功能描述: |
| 74F569PC | 功能描述:計(jì)數(shù)器 IC 4-Bit Bidir Dec Ctr RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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