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74HCT299 View Datasheet(PDF) - NXP Semiconductors.

Part Name
Description
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74HCT299
NXP
NXP Semiconductors. NXP
74HCT299 Datasheet PDF : 24 Pages
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NXP Semiconductors
74HC299; 74HCT299
8-bit universal shift register; 3-state
5. Pinning information
5.1 Pinning
74HC299
74HCT299
S0 1
OE1 2
OE2 3
I/O6 4
I/O4 5
I/O2 6
I/O0 7
Q0 8
MR 9
GND 10
20 VCC
19 S1
18 DSL
17 Q7
16 I/O7
15 I/O5
14 I/O3
13 I/O1
12 CP
11 DSR
001aai511
Fig 5. Pin configuration (SO20 and (T)SSOP20)
5.2 Pin description
Table 2. Pin description
Symbol
Pin
S0
1
OE1
2
OE2
3
I/O6
4
I/O4
5
I/O2
6
I/O0
7
Q0
8
MR
9
GND
10
DSR
11
CP
12
I/O1
13
I/O3
14
I/O5
15
I/O7
16
Q7
17
74HC299
74HCT299
S0 1
OE1 2
OE2 3
I/O6 4
I/O4 5
I/O2 6
I/O0 7
Q0 8
MR 9
GND 10
20 VCC
19 S1
18 DSL
17 Q7
16 I/O7
15 I/O5
14 I/O3
13 I/O1
12 CP
11 DSR
001aai457
Fig 6. Pin configuration (DIP20)
Description
mode select input
3-state output enable input (active LOW)
3-state output enable input (active LOW)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
serial output (standard output)
asynchronous master reset input (active LOW)
ground (0 V)
serial data shift-right input
clock input (LOW to HIGH, edge-triggered)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
parallel data input or 3-state parallel output (bus driver)
serial output (standard output)
74HC_HCT299_3
Product data sheet
Rev. 03 — 28 July 2008
© NXP B.V. 2008. All rights reserved.
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