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參數(shù)資料
| 型號(hào)： | 74F193 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類(lèi)： | 通用總線功能 |
| 英文描述： | Up/down binary counter with separate up/down clocks(帶分離加減時(shí)鐘的加減二進(jìn)制計(jì)數(shù)器) |
| 中文描述： | 向上/向下二進(jìn)制計(jì)數(shù)器分別向上/向下鐘表（帶分離加減時(shí)鐘的加減二進(jìn)制計(jì)數(shù)器） |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大小： | 104K |
| 代理商： | 74F193 |
Philips Semiconductors
Product specification
74F193
Up/down binary counter with separate up/down clocks
1995 Jul 17
8
Timing Diagram
(Typical clear, load, and count sequence)
NOTES:
1. Clear overrides load, data, and count inputs.
2. When counting up, count-down input must be High; when counting down, count-up input must be High.
Q0
Q1
Q2
Q3
0
13
14
15
0
1
2
1
0
15
14
13
COUNT UP
COUNT DOWN
CLEAR
PRESET
CLEAR
1
LOAD
D0
D1
D2
D3
COUNT UP
2
COUNT DOWN
2
SEQUENCE
DATA
OUTPUTS
MR
PL
CP
U
CP
D
TC
U
TC
D
SF00756
Binary Counter
TEST CIRCUIT AND WAVEFORMS
t
w
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
w
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
2.5ns
t
THL
2.5ns
1MHz
500ns
Input Pulse Definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
R
L
=
Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
Termination resistance should be equal to Z
OUT
of
pulse generators.
C
L
=
R
T
=
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
SF00006
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F193D | 制造商:Yageo / Phycomp 功能描述:Counter Single 4-Bit Async Binary UP/Down 16-Pin SO Tube |
| 74F193DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| 74F193N | 制造商:Yageo / Phycomp 功能描述: |
| 74F193PC | 功能描述:計(jì)數(shù)器移位寄存器 Up/Down Binary Ctr RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| 74F193PC | 制造商:Fairchild Semiconductor Corporation 功能描述:74F FAST TTL 74F193 DIP16 5.5V |
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