Integrated Circuits

74259
8-bit addressable latch
PDF datasheet
       
A0 1  • 16 Vcc
A1 2 15 MR
A2 3 14 LE
Q0 4 13 D
Q1 5 12 Q7
Q2 6 11 Q6
Q3 7 10 Q5
GND 8 9 Q4
       
Pin Symbol Description
1 A0 address input
2 A1 address input
3 A2 address input
4 Q0 latch output
5 Q1 latch output
6 Q2 latch output
7 Q3 latch output
8 GND ground
9 Q4 latch output
10 Q5 latch output
11 Q6 latch output
12 Q7 latch output
13 D data input
14 LE latch enable input (active low)
15 MR conditional reset input (active low)
16 Vcc supply voltage


Specifications
(typical values under recommended operating conditions, unless specified)
Parameter Value Unit
Propagation delay, D to Qn 18 (74HC)
20 (74HCT)
ns
Propagation delay, An to Qn 17 (74HC)
20 (74HCT)
ns
Propagation delay, LE to Qn 17 (74HC)
20 (74HCT)
ns

Note
Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.

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