74ALVCH16843 datasheet(2/12 Pages) PHILIPS

Numer części	74ALVCH16843

Szczegółowy opis	18-bit bus-interface D-type latch 3-State

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Philips Semiconductors

Product specification

74ALVCH16843

18-bit bus interface D-type latch (3-State)

2

1998 Aug 04

853–2108 019833

FEATURES

• Wide supply voltage range of 1.2V to 3.6V

• Complies with JEDEC standard no. 8-1A.

• CMOS low power consumption

• Direct interface with TTL levels

• Current drive ± 24 mA at 3.0 V

• MULTIBYTETM flow-through standard pin-out architecture

• Low inductance multiple V

CC and GND pins for minimum noise

and ground bounce

• All data inputs have bus hold

• Output drive capability 50Ω transmission lines @ 85°C

DESCRIPTION

The 74ALVCH16843 has two 9–bit D-type latch featuring separate

D-type inputs for each latch and 3-State outputs for bus oriented

applications. The two sections of each register are controlled

independently by the latch enable (nLE), clear (nCLR),

preset (nPRE) and output enable (nOE) control gates.

When nOE is LOW, the data in the registers appear at the outputs.

When nOE is HIGH, the outputs are in the high impedance OFF

state. Operation of the nOE input does not affect the state of the

flip-flops.

The 74ALVCH16843 has active bus hold circuitry which is provided

to hold unused or floating data inputs at a valid logic level. This

feature eliminates the need for external pull-up or pull-down

resistors.

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

1OE

1Q0

1Q1

1Q2

1Q3

1Q4

1Q5

GND

VCC

GND

1Q6

1Q7

1Q8

2Q0

2Q1

2Q2

GND

2Q3

2Q4

2Q5

VCC

2Q6

2Q7

GND

2Q8

2CLR

1D0

GND

1D1

1D2

VCC

1D3

1D4

1D5

GND

1D6

1D7

1D8

2D0

2D1

2D2

GND

2D3

2D4

2D5

VCC

2D6

2D7

GND

2D8

2LE

1PRE

1CLR

2OE

1LE

2PRE

SH00143

QUICK REFERENCE DATA

GND = 0V; Tamb = 25°C; tr = tf ≤ 2.5ns

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

tPHL/tPLH

Propagation delay

nDn to nQn

VCC = 2.5V, CL = 30pF

VCC = 3.3V, CL = 50pF

2.2

2.1

ns

tPHL/tPLH

Propagation delay

nLE to nQn

VCC = 2.5V, CL = 30pF

VCC = 3.3V, CL = 50pF

2.3

2.0

ns

CI

Input capacitance

5.0

pF

CPD

Power dissipation capacitance per buffer

VI = GND to VCC1

transparent mode

Output enabled

Output disabled

17

3

pF

CPD

Power dissi ation ca acitance er buffer

VI = GND to VCC1

Clocked mode

Output enabled

Output disabled

19

9

F

NOTES:

1. CPD is used to determine the dynamic power dissipation (PD in µW):

PD = CPD × VCC2 × fi + S (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacitance in pF;

fo = output frequency in MHz; VCC = supply voltage in V; S (CL × VCC2 × fo) = sum of outputs.

ORDERING INFORMATION

PACKAGES

TEMPERATURE

RANGE

OUTSIDE NORTH

AMERICA

NORTH AMERICA

DRAWING

NUMBER

56-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II

–40

°C to +85°C

74ALVCH16843 DGG

ACH16843 DGG

SOT364-1

Podobny numer części - 74ALVCH16843

Producent	Numer części	Arkusz danych	Szczegółowy opis
Nexperia B.V. All right...	74ALVCH16843	204Kb / 16P	18-bit bus-interface D-type latch; 3-State Rev. 3 - 20 November 2017
Nexperia B.V. All right...	74ALVCH16843DGG	204Kb / 16P	18-bit bus-interface D-type latch; 3-State Rev. 3 - 20 November 2017
NXP Semiconductors	74ALVCH16843	88Kb / 12P	18-bit bus-interface D-type latch (3-State) 1998 Aug 04

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Podobny opis - 74ALVCH16843

Producent	Numer części	Arkusz danych	Szczegółowy opis
NXP Semiconductors	74ALVCH16843	88Kb / 12P	18-bit bus-interface D-type latch (3-State) 1998 Aug 04
Nexperia B.V. All right...	74ALVCH16843	204Kb / 16P	18-bit bus-interface D-type latch; 3-State Rev. 3 - 20 November 2017
NXP Semiconductors	74ALVCH16841	77Kb / 10P	20-bit bus interface D-type latch 3-State 1998 Jul 27
Nexperia B.V. All right...	74ALVCH16841	215Kb / 12P	20-bit bus interface D-type latch; 3-state Rev. 3 - 12 September 2018
Texas Instruments	SN74ALS843	90Kb / 6P	[Old version datasheet] 9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
	SN74LVC841A	136Kb / 9P	[Old version datasheet] 10-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
	SN74ALS845	223Kb / 9P	[Old version datasheet] 8-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
	SN74ALS845	92Kb / 6P	[Old version datasheet] 8-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
	SN74ALS843	479Kb / 11P	[Old version datasheet] 9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
	SN74BCT29844	99Kb / 6P	[Old version datasheet] 9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OURPUTS

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