W78C374 Datasheet PDF - Winbond

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W78C374
Winbond

Part Number W78C374
Description MONITOR CONTROLLER
Page 30 Pages


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Preliminary W78E378/W78C378/W78C374
MONITOR CONTROLLER
GENERAL DESCRIPTION
The W78E378, W78C378 and W78C374B are ASIC which is a stand-alone high-performance
microcontroller specially designed for monitor control applications. The device integrates the
embedded 80C31 microcontroller core, on-chip MTP or Mask ROM, 576 bytes of RAM, and a number
of dedicated hardware monitor functions. Additional special function registers are incorporated to
control the on-chip peripheral hardware. The chip is used to control the interface signal of other
devices in the monitor and to process the video sync signals. Because of the highly integration and
Flash cell for program memory, the device can offer users the competitive advantages of low cost
and reduced development time.
FEATURES
80C31 MCU Core Embedded
32K Bytes MTP-ROM (W78E378)
32K Bytes Mask-ROM (W78C378)
16K Bytes Mask-ROM (W78C374B)
Total 576 Bytes of On-chip Data RAM
256 bytes accessed as in the 80C32
320 bytes accessed as external data memory via "MOVX @Ri"
PWM DACs
Eight 8-bit Static PWM DACs: DAC0DAC8
Three 8-bit Dynamic PWM DACs: DAC9DAC10
Sync Processor
Horizontal & Vertical Polarity Detector
Sync Separator for Composite Sync
12-bit Horizontal & Vertical Frequency Counter
Programmable Dummy Frequency Generator
Programmable H-clamp Pulse Output
SOA Interrupt
Hsync/2 Output
Serial Ports:
DDC1 Port- support DDC1
SIO1 & SIO2 Ports - each can support DDC2B/2B+/2Bi/2AB (each has 2 slave addresses)
Two 16-bit Timer/Counters (8031's Timer0 & Timer1)
One External Interrupt Input (8031's INT0 )
One Parabola Interrupt Generator
One ADC with 7 Multiplexed Analog Inputs
Two 12 mA(min) Output Pins for Driving LEDs
Watchdog Timer (222/Fosc = 0.42s @Fosc = 10 MHz)
Power Low Reset
Frequency: 10 MHz max. (with the same performance as a normal 8051 that uses 20 MHz)
Packaged in 40/32-pin 600 mil DIP & 44-pin PLCC
Publication Release Date: December 1999
- 1 - Revision A1



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Preliminary W78E378/W78C378/W78C374
PIN CONFIGURATIONS
40-pin DIP: W78E378E
W78C378E
40-pin DIP
P4.1 1
W78C374E
P4.0 (HFI)
P3.5 (ADC4, T0)*
2 32-pin DIP
31
32-pin DIP:
W78E378
W78C378
W78C374
P1.1 (DAC1)*
P1.0 (DAC0)*
4
5
2
3
P3.4 (VOUT) 6 4
P3.3 (HOUT) 7 5
HIN 8 6
VIN 9 7
RESET
VDD
10
11
8
9
VSSA 12 10
OSCOUT 13 11
OSCIN 14 12
P3.2 ( INT0 ) 15 13
P3.1 (SCL)* 16 14
P3.0 (SDA)* 17 15
VSS 18 16
P4.7 (HFO) 19
P4.6 20
44-pin PLCC
40 P4.2
39 P4.3
32 38 P3.6 (ADC5, T1)*
31 37 P1.2 (DAC2)*
30 36 P1.3 (DAC3)*
29 35 P1.4 (DAC4)*
28 34 P1.5 (DAC5)*
27 33 P1.6 (DAC6)*
26 32 P1.7 (DAC7)*
25 31 P2.0 (DAC8)
24 30 P2.1 (DAC9)
23 29 P2.2 (DAC10)
22 28 P2.3 (Hclamp)
21 27 P2.4 (ADC0)
20 26 P2.5 (ADC1)
19 25 P2.6 (ADC2)
18 24 P2.7 (ADC3)
17 23 P3.7 (ADC6)*
22 P4.4 (SCL2)*
21 P4.5 (SDA2)*
PPPPPPPPPPP
31134444311
...........
40150123623
P3.3
H IN
VIN
RESET
VDD
VDDA
VDD
VSSA
OSCOUT
OSCIN
P3.2
65432144444
43210
7 39
8 38
9 37
10 W78E378P 36
11
12
W78C378P
35
34
13
W78C374P
33
14 32
15 31
16 30
17 1 1 2 2 2 2 2 2 2 2 2 29
89012345678
P1.4
NC
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
PPVVPPPPPPP
3 3 SS4 4 4 4 3 22
. . SS. . . . . . .
10 7654776
-2-



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Preliminary W78E378/W78C378/W78C374
PIN DESCRIPTION
PIN NAME
RESET
VDD
VSS
VSS
OSCOUT
OSCIN
HIN
VIN
P1.0 (DAC0)
P1.1 (DAC1)
P1.2 (DAC2)
P1.3 (DAC3)
P1.4 (DAC4)
P1.5 (DAC5)
P1.6 (DAC6)
P1.7 (DAC7)
I/O DESCRIPTION
I/O Chip reset input (active low) input &
Internal reset output (generated by WDT or power low)
TTL Schmitt trigger input, internal pull-up ~30 K
IOL = +12 mA @VOL = 0.45V
- Positive power supply
- Ground
- Ground
O Output from the inverting oscillator amplifier
I Input to the inverting oscillator amplifier, 10 MHz max.
I Hsync input
TTL Schmitt trigger input , w/o PMOS
VIH/VIL = 2.0V/0.8V, V+/ V- = ~1.6V/ 1.1V
I Vsync input
TTL Schmitt trigger input, w/o PMOS
VIH/VIL = 2.0V/0.8V, V+/ V- = ~1.6V/ 1.1V
I/O General purpose I/O, DAC0 special function output
Open-drain output, sink current: 15 mA
I/O General purpose I/O, DAC1 special function output
Open-drain output, sink current: 15 mA
I/O General purpose I/O, DAC2 special function output
Open-drain output, sink current: 4 mA
I/O General purpose I/O, DAC3 special function output
Open-drain output, sink current: 4 mA
I/O General purpose I/O, DAC4 special function output
Open-drain output, sink current: 4 mA
I/O General purpose I/O, DAC5 special function output
Open-drain output, sink current: 4 mA
I/O General purpose I/O, DAC6 special function output
Open-drain output, sink current: 4 mA
I/O General purpose I/O, DAC7 special function output
Open-drain output, sink current: 4 mA
Publication Release Date: December 1999
- 3 - Revision A1



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Preliminary W78E378/W78C378/W78C374
Pin Description, Continued
PIN NAME I/O
P2.0 (DAC8) I/O
P2.1 (DAC9) I/O
P2.2 (DAC10) I/O
P2.3 (Hclamp) I/O
P2.4 (ADC0) I/O
P2.5 (ADC1) I/O
P2.6 (ADC2) I/O
P2.7 (ADC3) I/O
P3.0 (SDA) I/O
P3.1 (SCL) I/O
P3.2 (INT0 ) I/O
P3.3 (HOUT) I/O
P3.4 (VOUT) I/O
P3.5 (ADC4, T0) I/O
P3.6 (ADC5, T1) I/O
P3.7 (ADC6) I/O
DESCRIPTION
General purpose I/O, DAC8 Special Function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, DAC9 Special Function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, DAC10 Special Function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, Hclamp Special Function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, ADC input channel 0
Sink/Source current: 4 mA/-100 µA
General purpose I/O, ADC input channel 1
Sink/Source current: 4 mA/-100 µA
General purpose I/O, ADC input channel 2
Sink/Source current: 4 mA/-100 µA
General purpose I/O, ADC input channel 3
Sink/Source current: 4 mA/-100 µA
General purpose I/O, DDC port serial data I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/ 0.4 VDD
Open-drain output, sink current: 8 mA
General purpose I/O, DDC port serial clock I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/ 0.4 VDD
Open-drain output, sink current: 8 mA
General purpose I/O, INT0 input
Sink/Source current: 1 mA/ -100 µA
General purpose I/O, HOUT special function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, VOUT special function output
Sink/Source current: 4 mA/-100 µA (-4 mA for SF output)
General purpose I/O, ADC input channel 4
Open-drain output, sink current: 4 mA
General purpose I/O, ADC input channel 5
Open-drain output, sink current: 4 mA
General purpose I/O, ADC input channel 6
Open-drain output, sink current: 4 mA
-4-



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