a6276elp-t Allegro MicroSystems, Inc., a6276elp-t Datasheet - Page 3

• Manufacturer Part Number: a6276elp-t
• Description: 16-bit Serial Input, Constant-current Latched Led Driver
• Manufacturer: Allegro MicroSystems, Inc.

A6276
Terminal No.
5-20
21
22
23
24
1
2
3
4
SERIAL DATA OUT
OUTPUT ENABLE
SERIAL DATA IN
LATCH ENABLE
Terminal Name
SUPPLY
OUT
CLOCK
GND
R
EXT
0-15
GROUND
ENABLE
DATA IN
SERIAL
CLOCK
LATCH
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Reference terminal for control logic.
Serial-data input to the shift-register.
Clock input terminal for data shift on rising edge.
Data strobe input terminal; serial data is latched with high-level input.
The 16 current-sinking output ter mi nals.
When (active) low, the output drivers are enabled; when high, all output
drivers are turned OFF (blanked).
CMOS serial-data output to the following shift-register.
An external resistor at this terminal establishes the output current for all
sink drivers.
(V
Function
0
2
3
4
5
6
7
1
DD
(A, LP, and LW packages)
Terminal Description
10
11
12
1
2
3
4
5
6
7
8
9
) The logic supply voltage (typically 5 V).
Copyright © 2000, 2003 Allegro MicroSystems, Inc.
Pin-out Diagram
CK
L
16-Bit Serial Input, Constant-Current
REGISTER
LATCHES
REGULATOR
I
O
V
OE
DD
24
23
22
21
20
19
18
17
16
15
14
13
LOGIC
SUPPLY
R
SERIAL
DATA OUT
OUTPUT
ENABLE
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
EXT
15
14
13
12
11
10
9
8
Latched LED Driver
Allegro MicroSystems, Inc.
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Worcester, Massachusetts 01615-0036 U.S.A.
3