74HC670 datasheet(8/9 Pages) PHILIPS

Numer części	74HC670

Szczegółowy opis	4 x 4 register file; 3-state

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Producent	PHILIPS [NXP Semiconductors]

Strona internetowa	http://www.nxp.com

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8 / 9 page

December 1990

8

Philips Semiconductors

Product speciﬁcation

4 x 4 register ﬁle; 3-state

74HC/HCT670

AC WAVEFORMS

Fig.6

Waveforms showing the read address input

(RA, RB) to output (Qn) propagation delays

and output transition times.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

Fig.7

Waveforms showing the write enable input

(WE) and data input (Dn) to output (Qn)

propagation delays, and the write enable

pulse width.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

Fig.8

Waveforms showing the write address input (WA, WB) and data input (Dn) to write enable (WE) set-up,

hold and latch times.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

The shaded areas indicate when the input is permitted

to change for predictable output performance.

The time allowed for the internal output of the latch to

assume the state of the new data (tlatch) is important

only when attempting to read from a location

immediately after that location has received new data.

This parameter is measured from the falling edge of

WE to the rising edge of RA or RB, RE must be LOW.

Podobny numer części - 74HC670

Producent	Numer części	Arkusz danych	Szczegółowy opis
NXP Semiconductors	74HC670DB	83Kb / 9P	4 x 4 register file 3-state December 1990

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Podobny opis - 74HC670

Producent	Numer części	Arkusz danych	Szczegółowy opis
NXP Semiconductors	74HC670DB	83Kb / 9P	4 x 4 register file 3-state December 1990
NXP Semiconductors	74F670	97Kb / 12P	4 x 4 register file 3-State 1990 Jul 12
Motorola, Inc	SN54LS670	202Kb / 6P	4 x 4 REGISTER FILE WITH 3-STATE OUTPUTS
STMicroelectronics	M74HC670	482Kb / 11P	4 WORD x 4 BIT REGISTER FILE (3 STATE)
Hitachi Semiconductor	HD74AC670	62Kb / 10P	4 x 4 Register File with 3-State Output
STMicroelectronics	M54HC670	264Kb / 12P	4 WORD X 4 BIT REGISTER FILE 3 STATE
Fairchild Semiconductor	DM74LS670	65Kb / 6P	3-STATE 4-by-4 Register File
Toshiba Semiconductor	TC74HC670AP	289Kb / 7P	4 WORDx4 BIT REGISTER FILE(3-STATE)
Hitachi Semiconductor	HD74HC670	56Kb / 10P	4-by-4 Register File (with 3-state outputs)
Motorola, Inc	SN54LS170	107Kb / 4P	4 x 4 REGISTER FILE OPEN-COLLECTOR

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