HEF4894BT NXP Semiconductors, HEF4894BT Datasheet - Page 4

• Manufacturer Part Number: HEF4894BT
• Manufacturer: NXP Semiconductors
• Type: Not Requiredr

Specifications of HEF4894BT

• Technology: CMOS
• Number Of Elements: 1
• Number Of Bits: 12
• Logic Family: 4000
• Logical Function: Shift Register
• Operating Supply Voltage (typ): 3.3/5/9/12V
• Output Type: 3-State
• Package Type: SO
• Propagation Delay Time: 480ns
• Operating Temp Range: -40C to 125C
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 15V
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
Table 2.
7. Functional description
Table 3.
At the positive clock edge the information in the 10
[1]
[2]
[3]
HEF4894B
Product data sheet
Symbol
D
QP0 to QP11
QS1
QS2
CP
STR
OE
V
V
Control
CP
↑
↓
↑
↑
↑
↓
DD
SS
H = HIGH voltage level; L = LOW voltage level; X = don’t care; ↑ = LOW-to-HIGH clock transition; ↓ = HIGH-to-LOW clock transition;
Z = high-impedance OFF-state.
Q10S = the data in register stage 10 before the LOW to HIGH clock transition.
Q11S = the data in register stage 11 before the HIGH to LOW clock transition.
Pin description
Function table
OE
L
L
H
H
H
H
Pin
2
4, 5, 6, 7, 8, 9, 18, 17, 16, 15, 14, 13
11
12
3
1
19
20
10
6.2 Pin description
[1]
STR
X
X
L
H
H
H
All information provided in this document is subject to legal disclaimers.
Input
D
X
X
X
L
H
H
th
Rev. 7 — 13 August 2010
register stage is transferred to the 11
Parallel output
QP0
Z
Z
no change
Z
L
no change
Description
serial input
parallel output
serial output
serial output
clock input
strobe input
output enable input
supply voltage
ground (0 V)
12-stage shift-and-store register LED driver
QPn
Z
Z
no change
QPn − 1
QPn − 1
no change
th
register stage and the QS output
Serial output
QS1
Q10S
no change
Q10S
Q10S
Q10S
no change
[2]
HEF4894B
© NXP B.V. 2010. All rights reserved.
QS2
no change
no change
no change
no change
Q11S
Q11S
[3]
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