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7403 Datasheet(PDF) 14 Page - NXP Semiconductors

Part # 7403
Description  4-Bit x 64-word FIFO register; 3-state
PDF  28 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

7403 Datasheet(HTML) 14 Page - NXP Semiconductors

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September 1993
14
Philips Semiconductors
Product specification
4-Bit x 64-word FIFO register; 3-state
74HC/HCT7403
Master reset applied with FIFO full
Notes to Fig.8
1. DIR LOW, output ready HIGH; assume FIFO is full
2. MR pulse LOW; clears FIFO
3. DIR goes HIGH; flag indicates input prepared for valid data
4. DOR goes LOW; flag indicates FIFO empty
5. Qn outputs go LOW (only last bit will be reset).
Fig.8 Waveforms showing the MR input to DIR, DOR and Qn output propagation delays and the MR pulse width.
handbook, halfpage
t PHL
VM
(1)
t W
t PLH
DIR OUTPUT
VM
(1)
MR INPUT
VM
(1)
MGA668
Qn OUTPUT
t PHL
4
5
1
3
2
DOR OUTPUT
(1) HC : VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.



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