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74LS224 Datasheet(PDF) 3 Page - Texas Instruments

Part # 74LS224
Description  16 횞 4 SYNCHRONOUS FIRST-IN, FIRST-OUT MEMORIES WITH 3-STATE OUTPUTS
PDF  13 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

74LS224 Datasheet(HTML) 3 Page - Texas Instruments

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SN54LS224A, SN74LS224A
16
× 4 SYNCHRONOUS FIRST-IN, FIRST-OUT MEMORIES
WITH 3-STATE OUTPUTS
SDLS023E – JANUARY 1991 – REVISED APRIL 2003
3
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
logic diagram (positive logic)
1
9
3
15
4
5
6
7
2
14
13
12
11
10
OE
CLR
LDCK
UNCK
D0
D1
D2
D3
IR
OR
Q0
Q1
Q2
Q3
16
16
16
16
Ring
Counter
CTR
DIV 16
Write
Address
Ring
Counter
CTR
DIV 16
Read
Address
COMP
RAM
16
× 4
+
CT = 1
+
CT = 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P
Q
1A
2A
C5
1
16
EN
≥1
1A,5D 2A
1
16
S
1D
C1
S
2D
C2
R
3D
C3
R
4D
C4
Q=P+1
P=Q+1
P=Q
EMPTY
Pin numbers shown are for the J and N packages.



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