M74HC259 datasheet(1/13 Pages) STMICROELECTRONICS

tên linh kiện	M74HC259

Giải thích chi tiết về linh kiện	8 BIT ADDRESSABLE LATCH

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July 2001

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HIGH SPEED :

tPD = 20 ns (TYP.) at VCC = 6V

s

LOW POWER DISSIPATION:

ICC =4µA(MAX.) at TA=25°C

s

HIGH NOISE IMMUNITY:

VNIH = VNIL = 28 % VCC (MIN.)

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s

WIDE OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 259

DESCRIPTION

The M74HC259 is an high speed CMOS 8 BIT

ADDRESSABLE LATCH fabricated with silicon

gate C2MOS technology.

The M74HC259 has single data input (D) 8 latch

outputs (Q0-Q7), 3 address inputs (A, B, and C),

common enable input (E), and a common CLEAR

input. To operate this device as an addressable

latch, data is held on the D input, and the address

of the latch into which the data is to be entered is

held on the A, B, and C inputs. When ENABLE is

taken low the data flows through to the addresses

output. The data is stored on the positive-going

edge of the ENABLE pulse. All unaddressed

latches will remain unaffected. With ENABLE in

the high state the device is deselected and all

latches remain in their previous state, unaffected

by changes on the data or address inputs. To

eliminate the possibility of entering erroneous data

into the latches, the ENABLE should be held high

(inactive) while the address lines are changing. If

ENABLE is held high and CLEAR is taken low all

eight latches are cleared to the low state. If

ENABLE is low all latches except the addressed

latch will be cleared. The addressed latch will

instead

follow

the

D

input,

effectively

implementing a 3-to-8 line decoder.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

M74HC259

8 BIT ADDRESSABLE LATCH

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

DIP

M74HC259B1R

SOP

M74HC259M1R

M74HC259RM13TR

TSSOP

M74HC259TTR

TSSOP

DIP

SOP

Số phần tương tự - M74HC259

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	M74HC259	264Kb / 12P	8 BIT ADDRESSABLE LATCH Oct-1992
	M74HC259	684Kb / 19P	8-bit addressable latch 01-Nov-2013
	M74HC259B1R	264Kb / 12P	8 BIT ADDRESSABLE LATCH Oct-1992
	M74HC259C1R	264Kb / 12P	8 BIT ADDRESSABLE LATCH Oct-1992
	M74HC259M1R	264Kb / 12P	8 BIT ADDRESSABLE LATCH Oct-1992

More results

Mô tả tương tự - M74HC259

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	HCC4724B	302Kb / 14P	8 BIT ADDRESSABLE LATCH Sep-1988
Fairchild Semiconductor	DM9334	65Kb / 5P	8-Bit Addressable Latch
Hitachi Semiconductor	HD74AC259	69Kb / 11P	8-bit Addressable Latch
Toshiba Semiconductor	TC74HC259AP	361Kb / 10P	8-Bit Addressable Latch
Renesas Technology Corp	HD74AC259	217Kb / 8P	8-bit Addressable Latch
NXP Semiconductors	74HC259	134Kb / 21P	8-bit addressable latch Rev. 04-25 February 2009
Texas Instruments	NTE4099B	976Kb / 16P	8-Bit Addressable Latch
NXP Semiconductors	74HC_HCT259	162Kb / 22P	8-bit addressable latch Rev. 5-7 August 2012
ON Semiconductor	MC74AC259	96Kb / 9P	8-Bit Addressable Latch March, 2015 ??Rev. 7
Toshiba Semiconductor	TC40H259P	230Kb / 5P	8-BIT ADDRESSABLE LATCH

More results

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Số phần tương tự - M74HC259

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