參數(shù)資料
型號: HEF4794BT
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: 8-stage shift-and-store register LED driver
封裝: HEF4794BP<SOT38-4 (DIP16)|<<http://www.nxp.com/packages/SOT38-4.html<1<Always Pb-free,;HEF4794BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week
文件頁數(shù): 4/18頁
文件大?。?/td> 494K
代理商: HEF4794BT
HEF4794B
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NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 6 — 1 September 2010
4 of 18
NXP Semiconductors
HEF4794B
8-stage shift-and-store register LED driver
6.2 Pin description
7. Functional description
[1]
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state;
= LOW-to-HIGH clock transition;
= HIGH-to-LOW clock transition.
[2]
Q6S = the data in register stage 6 before the LOW to HIGH clock transition.
[3]
Q7S = the data in register stage 7 before the HIGH to LOW clock transition.
Table 2.
Symbol
D
QP0 to QP7
QS1
QS2
CP
STR
OE
V
DD
V
SS
Pin description
Pin
2
4, 5, 6, 7, 14, 13, 12, 11
9
10
3
1
15
16
8
Description
serial input
parallel output
serial output
serial output
clock input
strobe input
output enable input
supply voltage
ground (0 V)
Table 3.
Input
CP
Function table
[1]
Parallel output
QP0
Z
Z
no change
Z
L
no change
Serial output
QS1
[2]
Q6S
n.c.
Q6S
Q6S
Q6S
no change
OE
L
L
H
H
H
H
STR
X
X
L
H
H
H
D
X
X
X
L
H
H
QPn
Z
Z
no change
QPn
1
QPn
1
no change
QS2
[3]
no change
Q7S
no change
no change
no change
Q7S
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