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Электронный компонент: WT6248-S44

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Weltrend Semiconductor, Inc.
2F, No. 24, Industry E. 9
th
RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
Email:support@weltrend.com.tw
WT6248
Digital Monitor Controller with USB Function
(ROM Type)
Preliminary Data Sheet

REV. 1.01
Sep. 20, 2001




The information in this document is subject to change without notice.
Weltrend Semiconductor, Inc. All Rights Reserved.
WT6248
v1.01
USB Monitor Controller
Weltrend Semiconductor, Inc.
Page 2
GENERAL DESCRIPTION
The WT6248 is a microcontroller for digital controlled monitor with Universal Serial Bus (USB) interface. It
contains an 8-bit CPU, 48K bytes ROM, 1056 bytes RAM, 14 PWMs, parallel I/Os, SYNC signal
processor, timer, DDC1/2B interface, master/slave I
2
C interface, low speed USB device module, 6-bit A/D
converter and watch-dog timer.
FEATURES
8-bit 6502 compatible CPU with 6MHz operating frequency
48K bytes ROM, 1024 bytes SRAM+32 bytes bit-addressable SRAM
12MHz crystal oscillator
14 channels 8-bit PWM outputs
Sync signal processor with H+V separation, H/V frequency counter, H/V polarity detection/control and
clamp pulse output
Six free-running sync signal outputs (Horizontal frequency up to 106KHz 85Hz@1600x1200)
Self-test pattern
DDC1/2B module for EDID1.3, EDID2.0 and Enhance EDID
Fast mode master/slave I
2
C interface (up to 400KHz)
Embedded USB function with endpoint 0 and endpoint 1
Built-in 3.3V regulator for USB transceiver
Watch-dog timer
Maximum 28 programmable I/O pins
One 8-bit programmable timer
6-bit A/D converter with 4 selectable inputs
One external interrupt request input
Low V
DD
reset
ORDERING INFORMATION
Package Type
Part Number
42-pin PDIP
WT6248-N42
42-pin Shrink PDIP
WT6248-K42
44-pin SOP
WT6248-S44
44-pin PLCC
WT6248-L44
WT6248
v1.01
USB Monitor Controller
Weltrend Semiconductor, Inc.
Page 3
PIN CONFIGURATION
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
1
6
5
4
3
2
44
43
42
41
40
7
17
16
15
14
13
12
11
10
9
8
D+
D-
GND
HIN
IRQ
OSCI
OSCO
PA0/SDA1
PA1/SCL1
PA2/PWM8
PA3/PWM9
PA4/PWM10
PA5/PWM11
PA6/PWM12
PA7/PWM13/CLAMP
PB0/HFO
PB1/HFI
PB2
PB3/PAT
PB4/SCL2
PB5/SDA2
PC0/AD0
PC1/AD1
PC2/AD2
PC3/AD3
PC4
PC5
PC6
PC7/SOGIN
PD0/VOUT
PD1/HOUT
PD2/PWM7
PD3/PWM6
PD4/PWM5
PD5/PWM4
PWM0
PWM1
PWM2
PWM3
RESET/3V3
VDD
VIN
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
D+
D-
GND
HIN
IRQ
OSCI
OSCO
PA0/SDA1
PA1/SCL1
PA2/PWM8
PA3/PWM9
PA4/PWM10
PA5/PWM11
PA6/PWM12
PA7/PWM13/CLAMP
PB0/HFO
PB1/HFI
PB2
PB3/PAT
PB4/SCL2
PB5/SDA2
PC0/AD0
PC1/AD1
PC2/AD2
PC3/AD3
PC4
PC5
PC6
PC7/SOGIN
PD0/VOUT
PD1/HOUT
PD2/PWM7
PD3/PWM6
PD4/PWM5
PD5/PWM4
PWM0
PWM1
PWM2
PWM3
RESET/3V3
VDD
VIN
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
D+
D-
GND
HIN
IRQ
OSCI
OSCO
PA0/SDA1
PA1/SCL1
PA2/PWM8
PA3/PWM9
PA4/PWM10
PA5/PWM11
PA6/PWM12
PA7/PWM13/CLAMP
PB0/HFO
PB1/HFI
PB2
PB3/PAT
PB4/SCL2
PB5/SDA2
PC0/AD0
PC1/AD1
PC2/AD2
PC3/AD3
PC4
PC5
PC6
PC7/SOGIN
PD0/VOUT
PD1/HOUT
PD2/PWM7
PD3/PWM6
PD4/PWM5
PD5/PWM4
PWM0
PWM1
PWM2
PWM3
RESET/3V3
VDD
VIN
WT6248-L44
WT6248-S44
WT6248-K42
WT6248-N42
44-pin PLCC
44-pin SOP
42-pin PDIP
42-pin SPDIP
WT6248
v1.01
USB Monitor Controller
Weltrend Semiconductor, Inc.
Page 4
PIN DESCRIPTION
L44 S44 42
Pin Name I/O
Description
1
1
1 D+
I/O USB D+ signal.
2
2
2 PWM2
O PWM2 output (10V open-drain).
3
3
3 PWM1
O PWM1 output (5V open-drain).
4
4
4 PWM0
O PWM0 output (5V open-drain).
5
5
5 /RESET/3V3
I Reset input or +3.3V regulator output for USB transceiver power
6
-
- NC
No Connection.
7
6
6 VDD
+5V power supply.
-
7
- NC
No Connection.
8
8
7 GND
Ground.
9
9
8 OSCO
I/O 12MHz oscillator output.
10
10
9 OSCI
I 12MHz oscillator input.
11
11 10 PB5/ SDA2
I/O Port B5 or I
2
C interface data line.
12
12 11 PB4/ SCL2
I/O Port B4 or I
2
C interface clock line.
13
13 12 PB3/PAT
I/O Port B3 or test pattern output
14
14 13 PB2
I/O Port B2.
15
15 14 PB1/HFI
I/O Port B1 or half frequency divider input.
16
16 15 PB0/HFO
I/O Port B0 or half frequency divider output.
17
17 16 /IRQ
I Interrupt request input. A low level on this can generate interrupt.
18
18 17 PC7/SOGIN I/O Port C7 or Sync on Green input.
19
19 18 PC6
I/O Port C6.
20
20 19 PC5
I/O Port C5.
21
21 20 PC4
I/O Port C4.
22
22 21 PC3/AD3
I/O Port C3 or ADC input 3.
23
23 22 PC2/AD2
I/O Port C2 or ADC input 2.
24
24 23 PC1/AD1
I/O Port C1 or ADC input 1.
25
25 24 PC0/AD0
I/O Port C0 or ADC input 0.
26
26 25 PA0/SDA1
I/O Port A0 or DDC interface SDA pin.
27
27 26 PA1/SCL1
I/O Port A1 or DDC interface SCL pin.
28
28 27 PA2/PWM8 I/O Port A2 or PWM8 output.
29
29 28 PA3/PWM9 I/O Port A3 or PWM9 output.
30
30 29 PA4/PWM10 I/O Port A4 or PWM10 output.
31
31 30 PA5/PWM11 I/O Port A5 or PWM11 output.
32
32 31 PA6/PWM12 I/O Port A6 or PWM12 output.
33
33 32 PA7/PWM13/
CLAMP
I/O Port A7 or PWM13 output or clamp pulse output.
34
34 33 PD0/VOUT
I/O Port D0 or Vsync output.
35
35 34 PD1/HOUT
I/O Port D1 or Hsync output.
36
36 35 PD2/PWM7 I/O Port D2 or PWM7 output.
37
37 36 PD3/PWM6 I/O Port D3 or PWM6 output.
-
38
- NC
No Connection.
38
39 37 PD4/PWM5 I/O Port D4 or PWM5 output.
39
40 38 PD5/PWM4 I/O Port D5 or PWM4 output.
40
41 39 PWM3
I/O PWM3 output (10V open-drain).
41
42 40 HIN
I Hsync Input.
42
43 41 VIN
I Vsync input.
43
-
- NC
No Connection.
44
44 42 D-
I/O USB D- signal.