74HC4511 데이터 시트보기 (PDF) - STMicroelectronics

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74HC4511

BCD TO 7 SEGMENT LATCH/DECODER DRIVER

STMicroelectronics 

M74HC4511

BCD TO 7 SEGMENT LATCH/DECODER DRIVER

s HIGH SPEED:

tPD= 23ns (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 HIGH SOURGE CURRENT :

|IOH| = 20 mA (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 4511

DESCRIPTION

The M74HC4511 is an high speed CMOS

BCD-TO-7 SEGMENT LATCH/DECODER/

DRIVER fabricated with silicon gate C2MOS

technology.

The segment output driver has large IOH capability

which enables common cathode leds to be directly

driven.

When lamp test (LT) is taken "L", all segment

outputs will go to "H", and when blanking (BI) is

taken "L" and LT is taken "H" all segment outputs

will go to "L".

DIP

SOP

TSSOP

ORDER CODES

PACKAGE

TUBE

T&R

DIP

SOP

TSSOP

M74HC4511B1R

M74HC4511M1R

M74HC4511RM13TR

M74HC4511TTR

These functions operate regardless of other inputs

and are used to test the display.

Input BI is used to pulse-modulate the brightness

of the display.

When an error input code (over 10) is applied to

the BCD input, all segment outputs will go "L" (turn

off).

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

August 2001

1/13

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