參數(shù)資料
型號: 74F269SCX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Synchronous Up/Down Counter
中文描述: F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDSO24
封裝: 0.300 INCH, MS-013, SOIC-24
文件頁數(shù): 9/14頁
文件大?。?/td> 118K
代理商: 74F269SCX
Philips Semiconductors
Product specification
74F269
8–bit bidirectional binary counter
1996 Jan 05
9
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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PDF描述
74F269SPC 8-Bit Bidirectional Binary Counter
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