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74LS670 Datasheet(PDF) 2 Page - ON Semiconductor

Part # 74LS670
Description  LOW POWER SCHOTTKY
PDF  8 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

74LS670 Datasheet(HTML) 2 Page - ON Semiconductor

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SN74LS670
http://onsemi.com
2
CONNECTION DIAGRAM DIP (TOP VIEW)
Data Inputs
Write Address Inputs
Write Enable (Active LOW) Input
Read Address Inputs
Read Enable (Active LOW) Input
Outputs
D1 – D4
WA, WB
EW
RA, RB
ER
Q1 – Q4
0.5 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L.
1.5 U.L.
65 U.L.
0.25 U.L.
0.25 U.L.
0.5 U.L.
0.25 U.L.
0.75 U.L.
15 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
mA HIGH/1.6 mA LOW.
HIGH
LOW
(Note a)
LOADING
PIN NAMES
LOGIC SYMBOL
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
14
13
12
11
10
9
1234
5
6
7
16
15
8
VCC
D2
D1
WA
WB
EW
Q1
ER
Q2
D3
D4
RB
RA
Q4
Q3
GND
VCC = PIN 16
GND = PIN 8
14
13
5
4
12
15 1
2
3
11
10 9 7
6
WA
WB
RA
RB
EW
ER
D1 D2 D3 D4
Q1 Q2 Q3 Q4



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