ETC PT6959

Princeton Technology Corp.
Output Expander IC
Tel : 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT6999
DESCRIPTION
PT6999 is an output expander providing 12 bits of serial to parallel output. Pin Assignments and
application circuit are optimized for easy PCB Layout and cost saving benefits.
FEATURES
• Low Power Consumption
• N-Channel Open Drain Output: (Qx)
• High Output Withstanding Voltage (12V): (Qx)
• Serial Cascade
•Operating Voltage Range: 3.0 to 5.5 V
• Low Power Dissipation
• High Driving Capability
APPLICATIONS
• Radio Cassette Players
• Telephones
• Compact Audio System
• Car Stereo
PT6999 v 1.1
Page 1
Updated July 2001
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Output Expander IC
PT6999
PIN CONFIGURATION
VSS
NC
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
PT6999 v 1.1
1
2
3
4
5
6
7
8
9
10
Page 2
20
19
18
17
16
15
14
13
12
11
VDD
OE
SO
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Updated July 2001
Tel : 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Princeton Technology Corp.
Output Expander IC
PT6999
APPLICATION CIRCUIT
VSS
MCU
VEXT 330 Ohms
VEXT 330 Ohms
VEXT 330 Ohms
VEXT 330 Ohms
VEXT 330 Ohms
+5V
+5V
GND
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
GND
VDD
OE
SO
Q 1
Q10
Q9
Q8
Q7
Q6
Q
330 Ohms V EXT
330 Ohms V EXT
330 Ohms V EXT
330 Ohms V EXT
330 Ohms V EXT
330 Ohms V EXT
330 Ohms V EXT
DATA
CLOCK
LCK
Q12
Q13
Q14
Q15
Q16
VDD
OE
SO
Q23
Q22
Q21
Q20
Q19
Q18
Q17
SERIAL OUT
Note: VEXT = External Voltage
PT6999 v 1.1
Page 3
Updated July 2001