參數(shù)資料
型號(hào): 74HCT7404D
廠商: NXP SEMICONDUCTORS
元件分類: FIFO
英文描述: 5-Bit x 64-word FIFO register; 3-state
中文描述: 64 X 5 OTHER FIFO, 108 ns, PDSO20
封裝: PLASTIC, SO-20
文件頁數(shù): 17/28頁
文件大?。?/td> 131K
代理商: 74HCT7404D
September 1993
17
Philips Semiconductors
Product specification
5-Bit x 64-word FIFO register; 3-state
74HC/HCT7404
Shift-in operation; high-speed burst mode
Note to
Fig.12
In the high-speed mode, the burst-in rate is determined by the minimum shift-in HIGH and shift-in LOW specifications.
The DIR status flag is a don't care condition, and a shift-in pulse can be applied regardless of the flag. A SI pulse which
would overflow the storage capacity of the FIFO is ignored.
Fig.12 Waveforms showing SI minimum pulse width and maximum pulse frequency, in high-speed shift-in burst
mode.
handbook, full pagewidth
MGA662
VM
(1)
SI INPUT
Dn INPUT
1/
fmax
tW
DIR OUTPUT
(1) HC
:
V
M
= 50%; V
I
= GND to V
.
V
M
= 1.3 V; V
I
= GND to 3 V.
HCT :
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