CD74HC40105 Datasheet, PDF (4/14 Pages) Texas Instruments – High Speed CMOS Logic 4-Bit x 16-Word FIFO Register

CD74HC40105, CD74HCT40105
9
MR
3
SI
2
DIR
4
D0
5
D1
6
D2
7
D3
RQ
†
SQ
CL CL
4
LATCHES
L1
POSITION 1
F/F1
RQ
††
SQ
14 x
CL CL
4 x 14
LATCHES
14 x L1
POSITION 2-15
F/Fs
2-15
RQ
††
SQ
14 x
F/F16
RQ
††
SQ
14
DOR
15
S0
R
†
SQ
CL CL
4
LATCHES
L16
POSITIONS 16
THREE-
STATE
OUTPUT
BUFFERS
E
E
13
Q0
12
Q1
11
Q2
10
Q3
1
OE
† “S” overrides “R”.
†† “R” overrides “S”.
FIGURE 2. LOGIC DIAGRAM
4