Datasheet > HEF4894BT118

HEF4894BT118

更新时间： 2024-11-22 01:17:55

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
19页	204K
描述
12-stage shift-and-store register LED driver

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HEF4894BT118 数据手册

HEF4894B

12-stage shift-and-store register LED driver

Rev. 8 — 22 November 2011

Product data sheet

1. General description

The HEF4894B is a 12-stage serial shift register. It has a storage latch associated with

each stage for strobing data from the serial input (D) to the parallel LED driver outputs

(QP0 to QP11). Data is shifted on positive-going clock (CP) transitions. The data in each

shift register stage is transferred to the storage register when the strobe (STR) input is

HIGH. Data in the storage register appears at the output whenever the output enable (OE)

input signal is HIGH.

Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4894B

devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed

operation in cascaded systems with a fast clock rise time. The same serial data is

available at QS2 on the next negative going clock edge. This is used for cascading

HEF4894B devices when the clock has a slow rise time.

It operates over a recommended V_DDpower supply range of 3 V to 15 V referenced to V_SS

(usually ground). Unused inputs must be connected to V_DD, V_SS, or another input.

2. Features and benefits

 Fully static operation

 5 V, 10 V, and 15 V parametric ratings

 Standardized symmetrical output characteristics

 Specified from 40 C to +85 C and 40 C to +125 C

 Complies with JEDEC standard JESD 13-B

3. Ordering information

Table 1.

Ordering information

All types operate from 40 C to +125 C.

Type number Package

Name

DIP20

SO20

Description

Version

HEF4894BP

HEF4894BT

plastic dual in-line package; 20 leads (300 mil)

plastic small outline package; 20 leads; body width 7.5 mm

SOT146-1

SOT163-1

SOT360-1

HEF4894BTT TSSOP20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm

12 3 4 5 6 7...19

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