Diodes AP389X User Manual

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

General Description

The AP389X is a low-cost high-resolution single chip
solution for APA capacitive touch screen. It is an
8-bit single cycle 8051 microcontroller with I
Interface. The chip includes 8-bit successive
approximation analog-to-digital converters with an

2

I

C interface and multiplexer-switcher circuits for
flexible measurement of analog signal from APA
panel. An accurate switched-capacitor integrator is
built-in and it can auto calibrate the pixel parameters
for a wide range of capacitance on the touch screen
(0.1pF to 4pF). On-chip capacitor can replace
external component. This touch screen controller
(TSC) with CMOS integration circuit provides an
ideal choice for APA touch panel. The AP389X is
specified over the temperature range of -40°C to
95°C.

The AP389X is available in QFN-7×7-56 (for
AP3890) and QFN-8×8-68 (for AP3891 and AP3892)
packages.

2

Features

•

Mutual Capacitive Touch Sensing

• Dual Power Supply: 2.8V to 3.6V Operation

Voltage; 1.6V to 2.0V Operation Voltage

•

Up to 30/38/36 Drive Lines and 17/22/23 Sense

Lines

• Dedicated Internal Two-wire Serial Control Bus

2

I

C and UART between AP389X and Host

•

Single-end Integrator with Programmable Gain

Control and Offset Control

• Multiplexed Analog Digitization with Two 8-bit

Resolution Odd/Even Scan SAR ADCs and Its
Dedicated 2X to 8X Accumulator XSRAM
Buffers

QFN-7×7-56

Figure 1. Package Types of AP389X

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

Features (Continued)

• Single Cycle 8051 CPU Core, Maximum Opera-

ting Clock up to 24MHz from IOSC (Zero Wait

C

State); 48MHz from IOSC(With Wait State)
4MHz to 48MHz Internal Oscillator (IOSC)
64K-byte Flash ROM
256-byte Internal SRAM and 12032-byte
XSRAM
Extra XSRAMs for AFE:

 896×12-bit×2 XSRAM for 8-bit SAR ADC

 896×8-bit XSRAM for 8-bit Parasitical

Capacitor Compensator
Two 16-bit Timers T0/T1 and One 16-bit ECT
Timer T2

2

One I

C Slave Controller and One I2C Master

Controller Shared with the Same Port

 With Asynchronous I

Detection Logic Design
4 General Purpose GPIO Pins
One External Interrupt Pin
One UART Data Transfer Output Pin

• ISP/IAP via I²C Port

• Operation Temperature Range: -40°C to 95°C

• Package Types: QFN-7×7-56 and QFN-8×8-68

• RoHS Compliance

• O perating Mode:

Mode Description
Power-down No scan with power-down mode
Standard Higher scan rate when fingers are

on panel, IOSC can up to 4MHz
to 48MHz

2

C Slave Address

Applications

• Mobile Phones

• Personal Digital Assistants

• Smart Hand-held or Gaming Devices

1

QFN-8×8-68

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Pin Configuration

FN Package
(QFN-7×7-56)

Pin 1 Mark

56

1
2
3

4
5
6
7
8
9

10
11

12

13
14

15

16

17 18 19 20 21 22 23 24 25 26 27 28

EP

43444546474849505152535455

42
41
40

39
38
37
36
35
34
33
32
31
30
29

Figure 2. Pin Configuration of AP3890 (Top View)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

2

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Pin Configuration (Continued)

FN Package

(QFN-8×8-68)

Pin 1 Mark

S8

P1.7/

TXD1

/PINT0.1/EXTCLKIN

TESTEN
P1.2/SDA
P1.3/SCL

RSTN

D38
D37
D36
D35
D34
D33
D32
D31
D30
D29
D28
D27

/T0

S22

68

1
2
3
4
5
6
7
8
9

10

11
12
13
14
15
16

17

18

S19

S20

S21

67

66

65

202122232425262728293031323334

19

S16

S14

S15

S17

S18

63626160595857

64

EP

S13

S11

S10

S12

5655545352

69 VSS

S9

S7

S6

51

S5

50

S4

49

S3

48

S2

47

S1

46

VDD33

45

VDD18

44

P3.6/RXD1(GPIO18)

43

D1

42

D2

41

D3

40

D4

39

D5

38

D6

37

D7

36

D8

35

D9

D24

D22

D26

D25

D23

D21

D20

D19

D18

D17

D16

D15

D14

D13

D12

D11

D10

Figure 3. Pin Configuration of AP3891 (Top View)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

3

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Pin Configuration (Continued)

FN Package

(QFN-8×8-68)

S8

S9

S23

68

S22

67

S21

66

S17

S18

S19

S20

63626160595857

64

65

S16

S15

S14

S13

S12

5655545352

S11

S10

S7

202122232425262728293031323334

18

19

D9

D24

D23

D22

D21

D20

D19

D18

D17

D16

D15

D14

D13

D12

D11

D10

D8

Figure 3. Pin Configuration of AP3892 (Top View)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

4

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Pin Description

Pin Number

QFN-56
AP3890

QFN-68

AP3891 AP3892

1 1 1

2 2 2 TESTEN I

3 3 3

4 4 4

5 5 5 RSTN I

Pin Name

P1.7/

TXD1/

PINT0.1/

EXTCLKIN/

T0

P1.2/SDA

(open-drain)

P1.3/SCL

(open-drain)

Pin

Type

I/O

I/O

I/O

Pin Function

Port 1.7 GPIO

8051 P1.7 GPIO

TXD1

This pin also can be configured as TXD of
UART 1

PINT0.1

This pin also can be configured as the
expanded INT0 interrupt

External Clock Input
External clock input source.
T0 Timer 0 Input

This pin also can be configured as Timer 0
input

Test Mode Enable High Active
This pin has an internal weakly pull low

resistor connected. If it is connected high, the
chip enters into Test Mode condition

Port 1.2 GPIO

8051 P1.2 GPIO

SDA

This pin also can be configured as the SDA
signal of the I2C master or I2C slave controller.
In this operation mode, this pin should also be
configured as bi-directional I/O with
open-drain output

Port 1.3 GPIO

8051 P1.3 GPIO

SCL

This pin also can be configured as the SCL
signal of the I

2

In I

C master mode, this pin should be
configured as open-drain output. In I
this pin should be configured as input only

Reset Low Active

Typically connect a resistor to VDD18 and a
capacitor to VSS
Low asserted and threshold at 0.5×V
forced low, the chip enters into reset condition
This pin should not be connected to any level
above V

2

C master or I2C slave controller.

DD18

2

C slave,

. When

DD18

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

5

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Pin Description (Continued)

Pin Number

QFN-56
AP3890

-

- 8 to 13 6 to 11

6 to 35

36 44 42

37 69 43 VSS Power

38 45 44 VDD18 Power

39 46 45 VDD33 Power

40 to 56

-

- - 68 S23 I, A

QFN-68

AP3891 AP3892

6, 7

14 to

43

47 to

63

64 to

68

-

12 to

41

46 to

62

63 to

67

Pin

Name

D38,

D37

D36 to

D31

D30 to

D1

P3.6/
RXD1
(open-

drain)

S1 to

S17

S18 to

S22

Pin

Type

O, A

O, A

O, A

I/O

I, A

I, A

Pin Function

D38, D37

Driving line 38 to line 37

D36, D35, D34, D33, D32, D31

Driving line 36 to line 31

D30, D29, D28, D27, D26, D25, D24, D23, D22,
D21, D20, D19, D18, D17, D16, D15, D14, D13,
D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2,
D1

Driving line 30 to line 1
Port 3.6 GPIO

8051 P3.6 GPIO
This pin should be configured as open-drain output
and the input range can be 1.8V to 3.3V

RXD1
This pin also can be configured as RXD of UART 1

Ground Voltage. 0V
Internal Regulator Output. 1. 6V to 2.0V

Typical decoupling capacitors of 0.1F and 10F
should be connected between VDD18 and VSS

Supply Voltage. 2.8V to 3.6V

A good decoupling capacitor between VDD33 and
VSS is critical for good performance

S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,
S13, S14, S15, S16, S17

Sensing line 1to line 17
S18, S19, S20, S21, S22
Sensing line 18 to line 22
S23
Sensing line 23

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

6

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Functional Block Diagram

VSS
P1.7

TESTEN

SDA
SCL

RSTN

D38
D37
D36
D35
D34
D33
D32
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22

896ٛ8-bit SRAM

(CMOD_Buffer)

64K Flash

D[38:1]

MUX

POR18
POR33

LVD

S23

INT

S22

S21

S20

S19

Stage 4

Stage 5

Stage 6

Stage 7

Stage 8

Stage 9

/

Stage 23

Mode Control

Register Table

SFR

S18

Analog signals S[23:1]

DAI S/H

Stage 1

Stage 2

Stage 3

S17

Stage 0

S15

S16

FIFO

4~48M

OSC

CLK

12K SRAM

MCU

MDU

I2C M/S

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D9

D11

D10

D8

D7

D6

Figure 4. Main AFE I/O Pin Assignment and Whole Chip’s Functional Block Diagram

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

7

S12

S13

S14

SWITCH MATRIX

SAR
8-bit

SAR

ADC

8-bit
ADC

+

896ٛ12-bit SRAM

(SCAN_Buffer)

896ٛ12-bit SRAM

(Baseline)

D4

D2

D3

D5

S11
S10

S9
S8
S7
S6
S5
S4
S3
S2
S1

-

VDD33

VDD18

P3.6

D1

Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Ordering Information

AP389 -

Circuit Type

0: AP3890
1: AP3891
2: AP3892

G1: Green

Blank: Tray
TR: Tape & Reel

Package
FN: QFN-7×7-56

/QFN-8×8-68

Package Temperature Range Part Number Marking ID Packing Type

QFN-7x7-56

QFN-8x8-68

QFN-8x8-68

BCD Semiconductor's Pb-free products, as designated with "G1" in the part number, are RoHS compliant and
green.

-40 to 95°C

AP3890FN-G1 AP3890FN-G1 Tray
AP3890FNTR-G1 AP3890FN-G1 Tape & Reel
AP3891FN-G1 AP3891FN-G1 Tray
AP3891FNTR-G1 AP3891FN-G1 Tape & Reel
AP3892FN-G1 AP3892FN-G1 Tray
AP3892FNTR-G1 AP3892FN-G1 Tape & Reel

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

AP389X Support 7” to 13” Touch Panel, Listed Below:

PN TX/ RX Multi - Touch Package Panel size

AP3890 30/17 10 point 100HZ QFN-7x7-56 7” to 10”
AP3891 38/22 10 point 100HZ QFN-8x8-68 8” to 13”
AP3892 36/23 10 point 100HZ QFN-8x8-68 8” to 13”

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Supply Voltage 1 VDD 2.8 to 3.6 V
Supply Voltage 2 V
Analog Input Voltage (Other pins) V
Logic Input Voltage V
Power Dissipation PD 250 mW
Maximum Junction Temperature TJ 100 °C
Operating T em perature TOP -40 to 95 °C
Storage Temperature T

1.6 to 2.0 V

DD18

-0.3 to VDD+0.3 V

DDA

-0.3 to VDD+0.3 V

DDD

-65 to 150 °C

STG

Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Electrical Characteristics

DA/AC Characteristics for AFE

TA=–40°C to 95°C, VDD=3.3V, I2C bus frequency=400kHz, unless otherwise noted.

Parameter Symbol Test Condition Min Typ Max Unit

ADC DC Accuracy

Resolution 8 Bits
No Missing Codes
Integral Linearity Error INL

Differential Linearity Error
Offset Error

DNL External V

Gain Error

Analog Input

Full-scale Input Span
Absolute Input Range

ADC Sampling Dynamics

Throughput Rate 500 ksps

Reference Input

Input Voltage Range 1.8 VDD V

Switched-capacitor Integrator

Output Voltage Range 0.3 VDD-0.3 V
Integrator Capacitor C

INT

Digital Input/Output
Logic Family CMOS
Input High Voltage VIH 0.7×VDD V
Input Low Voltage VIL -0.3 0.3×VDD V
Output High Voltage VOH 0.8×VDD V
Output Low Voltage VOL 0.4 V

Input High Voltage for
P3.6 (GPIO18)
Input Low Voltage for P3.6
(GPIO18)
Output High Voltage for
P3.6 (GPIO18)
Output Low Voltage for
P3.6 (GPIO18)

V

V

V

V

IH18

IL18

OH18

OL18

Power Supply

Supply Voltage VDD Operating voltage 2.8 3.6 V

Quiescent Current

Temperature Range

Specified Performance -40 95 °C

Standard/Fast
Standard/Fast

REF

6 8 Bits

±2 LSB

0

-0.2

±1

V

±2
±1

VDD

DD

+0.2

LSB
LSB
LSB

V
V

12 pF

+0.3 V

DD

0.7×V

DD18

-0.3 0.3×V

0.8×V

DD18

0.2×V

Standard mode:
IOSC=4MHz to
48MHz

Power-down mode

V

+0.3 V

DD18

V

DD18

V

V

DD18

TBD

10

mA

A

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Electrical Characteristics (Continued)

DA/AC Characteristics for AFE

TA=–40°C to 95°C, VDD=3.3V, I2C bus frequency=400kHz, unless otherwise noted.

Parameter Symbol Test Condition Min Typ Max Unit

3.3V-to-1.8V LDO

Internal 1.8V Regulator
Output
Output Voltage Trimming
Level

Internal OSC

Frequency 4 48 MHz
Operating Current

Frequency Trimming
Level

V

,

DD18

15mA

1.6 1.8 2.0 V

-2/4/6 0 2/4/6 %

Operating
frequency=12MHz

-10/20/30 0 10/20/30 %

50

A

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Electrical Characteristics (Continued)

DA/AC Characteristics for 8051 CPU Core, Digital GPIO pins, Digital Peripherals, and
IOSC

T

=–40°C to 95°C, VDD=2.8V to 3.6V, unless otherwise noted.

A

Parameter Symbol Min Typ Max Unit Note

Power Supply Current

Normal Mode Supply Current
Using IOSC up to 48MHz
Normal Mode Supply Current
Using IOSC=4MHz
PMM Mode Supply Current Using
IOSC up to 48MHz
PMM Mode Supply Current Using
IOSC=4MHz
Idle Mode Supply Current Using
IOSC up to 48MHz
Stop Mode Supply Current Using
IOSC Keeps Low

I

, normal IOSC1 25 mA 2

DD

I

, normal IOSC2 2.9 mA 2

DD

I

, PMM IOSC1 6 mA 2

DD

, PMM IOSC2 1.5 mA 2

I

DD

I

, idle IOSC1 3 mA 2

DD

I

, stop 3

DD

A

2

Digital GPIO Characteristics

Input High Voltage VIH 2 3.6 V 3
Input Low Voltage VIL -0.3 0.8 V 3
Output High Voltage VOH 2.4 V 3
Output Low Voltage VOL 0.4 V 3

I

(2mA) 3.0 7.87 12.9 mA

High Level Output Current
@V

(min)

OH

Low Level Output Current
@V

(max)

OL

Input Pull Up Resistance RPU 34 74
Input Pull Down Resistance RPD 29 86

OH

IOH(4mA) 7.7 15.6 25.8 mA

I

(2mA) 3.4 5.4 7.4 mA

OL

IOL(4mA) 6.7 10.7 14.7 mA

k
k

3

3
Input Low to High Level, RSTN VIH, RSTN 0.85 0.93 V 4
Input High to Low Level, RSTN VIL, RSTN 0.63 0.71 V 4
Output Rise Time t
Output Fall Time t

5 ns 7

RISE

5 ns 7

FALL

Internal 3.3V-to-1.8V LDO from AFE

Internal 1.8V Regulato r Output V
Power On/Off Reset Level V

, 15mA 1.6 1.8 2.0 V 5

DD18

, Reset 80 85 90 % 6

DD18

Note 2: Does not include load current and tested under NOP loop and all peripheral disabled.
Note 3: For Digital I/O only.
Note 4: For RSTN pin only.
Note 5: Supply to internal digital and analog circuit only.
Note 6: This is measured as the percentage of steady state value of V

DD18

.

Note 7: This is measured with 20pF load and 20% to 80% output level.

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Typical Application

AP3890

Figure 5. Typical Application Schematic of AP3890 (For QFN-7×7-56 Package)

AP3891

Figure 6. Typical Application Schematic of AP3891 (For QFN-8×8-68 Package)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Typical Application (Continued)

AP3892

Figure 7. Typical Application Schematic of AP3892 (For QFN-8×8-68 Package)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Mechanical Dimensions

QFN-7×7-56 Unit: mm(inch)

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Mechanical Dimensions (Continued)

QFN-8×8-68 Unit: mm(inch)

7.900(0.311)

8.100(0.319)

0.700(0.028)

0.800(0.031)

7.900(0.311)

8.100(0.319)

Pin 1 Mark

0.000(0.000)

0.050(0.002)

0.203(0.008)
REF

0.300(0.012)

0.500(0.020)

E

N35

0.400(0.016)

68

67

66465

N52

BSC

1
2
3

D

0.150(0.006)

0.250(0.010)

DETAIL A

68

67

66465

Pin 1 Options

PIN

#1 IDENTIFICATION

See DETAIL A

N68

N1

N18

68

67

66465

1
2
3

1
2
3

4.500

5.600

D

0.169 0.177

0.213 0.220

4.300

.

5.400

.

Symbol

min(mm) max(mm) max(mm)min(mm)min(inch) min(inch)max(inch) max(inch)

Option1
Option2

4.300

5.400

Option3 6.100 6.300 0.240 0.248 6.3006.100 0.240 0.248

4.500

5.600

E

0.169

0.213

0.177

0.220

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Mounting Pad Layout

QFN-7×7-56

X

Y

Y2

E

Y3

X1

E

X2

X3

Y1

Dimensions

X=Y

(mm)/(inch)

Value 7.400/0.291 5.400/0.213 0.250/0.010 0.700/0.028 0.400/0.016

X1=Y1

(mm)/(inch)

X2=Y2

(mm)/(inch)

X3=Y3

(mm)/(inch) E (mm)/(inch)

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Data Sheet

Enhanced Multi-touch Capacitive Touch Screen Controller AP389X

Mounting Pad Layout (Continued)

QFN-8×8-68

Dimensions

Option1 8.400/0.331 4.700/0.185 0.250/0.010 0.400/0.016 0.700/0.028
Option2 8.400/0.331 5.800/0.228 0.250/0.010 0.400/0.016 0.700/0.028
Option3 8.400/0.331 6.500/0.256 0.250/0.010 0.400/0.016 0.700/0.028

X=Y

(mm)/(inch)

X1=Y1

(mm)/(inch)

X2=Y2

(mm)/(inch) E (mm)/(inch)

X3=Y3

(mm)/(inch)

Apr. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

18

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BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

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REGIONAL SALES OFFICE

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office

Taiwan Office (Hsinchu)

Shenzhen Office

Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen,

BCD Semiconductor (Taiwan) Company Limited

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office

China

8F, No.176, Sec. 2, Gong-Dao 5th Road, East District

Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office

Tel: [phone]

HsinChu City 300, Taiwan, R.O.C

Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China

Fax: [phone]

Tel: [phone], Fax: [phone]

Tel: [phone]
Fax: [phone]

- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

800 Yishan Road, Shanghai 200233, China
Tel: [phone], Fax: [phone]

- Wafer Fab

BCD Semiconductor Manufacturing Limited

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

Taiwan Office (Taipei)

- IC Design Group

800 Yi Shan Road, Shanghai 200233, China

BCD Semiconductor (Taiwan) Company Limited

Advanced Analog Circuits (Shanghai) Corporation

Tel: [phone], Fax: [phone]

3F, No.17, Lane 171, Sec. 2, Jiu-Zong Rd., Nei-Hu Dist., Taipei(114), Taiwan, R.O.C

8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China

Tel: [phone]

Tel: [phone], Fax: [phone]

Fax: [phone]

Taiwan Office
BCD Semiconductor (Taiwan) Company Limited

USA Office

Taiwan Office

4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,

BCD Semiconductor Corp.

BCD Semiconductor (Taiwan) Company Limited

Tai wan

48460 Kato Road, Fremont, CA 94538, USA

4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,

Tel: [phone]

Tel: [phone]

Taiwan

Fax: [phone]

Fax: [phone]

Tel: [phone]
Fax: [phone]

USA Office

Korea Office
BCD Semiconductor Limited Korea office.

Room 101-1112, Digital-Empire II, 486 Sin-dong,
Yeongtong-Gu, Suwon-city, Gyeonggi-do, Korea
Tel: [phone]

BCD Semiconductor Corp.

USA Office

30920 Huntwood Ave. Hayward,

BCD Semiconductor Corporation

CA 94544, USA

30920 Huntwood Ave. Hayward,

Tel : [phone]

CA 94544, U.S.A

Fax: [phone]

Tel : [phone]
Fax: [phone]