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W78E354 Datasheet Preview

W78E354 Datasheet

MONITOR MICROCONTROLLER

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W78E354
MONITOR MICROCONTROLLER
GENERAL DESCRIPTION
The W78E354 is a stand-alone high-performance microcontroller ASIC specially designed for use in
monitor control applications. Using the Winbond 0.8µ DPDM process, the W78E354 integrates an
embedded 8031 microcontroller core, 16K bytes of Flash cell, 512 bytes of RAM and a number of
dedicated hardware functions. These hardware functions include a 6-bit A/D converter, two/fourteen
12/8-bit PWM static DACs, one/three 12/8-bit PWM dynamic DACs, a sync processor, one DDC port,
a watchdog timer and other custom glue logic. Additional special function registers are incorporated to
control the on-chip peripheral hardware.
The chip is used to control the interface signals of other devices in the monitor and to process the
video sync signals. Because of high integration and the incorporation of Flash cell for program
memory, the device offers the user the competitive advantages of low cost and reduced development
time.
FEATURES
80C31 MCU core included
16K bytes Flash OTP memory for program storage
Total 512 bytes of on-chip data RAM:
256 bytes accessed as in the 80C32, 256 bytes accessed as external data memory via "MOVX
@Ri".
One SPI/RS232 port (a serial port of 8051 standard)
One external interrupt input
Two timers/counters
PWM DACs:
Two 12-bit PWM/BRM Static DACs
Fourteen 8-bit PWM Static DACs
One 12-bit PWM/BRM Dynamic DAC
Three 8-bit PWM Dynamic DACs
One 6-bit ADC with 4 multiplexed analog inputs
Sync Processor:
Horizontal & Vertical Polarity Detector
Sync Separator for composite sync
Horizontal & Vertical Frequency Counter
Programmable dummy frequency generator
Programmable H-clamp pulse output
SOA output (hardware H frequency change detection)
One DDC port (master/slave mode I2C with two slave address reg., support DC1/DDC2B/DDC2B+)
One 8-bit Auto-reload timer for software time base
Publication Release Date: April 1997
- 1 - Revision A1




Winbond

W78E354 Datasheet Preview

W78E354 Datasheet

MONITOR MICROCONTROLLER

No Preview Available !

W78E354
Watchdog Timer
Two 15 mA output pins for driving LEDs
Power down reset
Clock: DC to 20 MHz
Packaged in 68-pin PLCC, 48-pin DIP and 40-pin DIP
PIN CONFIGURATIONS
SDAC10
SDAC11
P2.6/SDAC12
P2.7/SDAC13
OSCOUT
OSCIN
VSS
P2.0
P2.1
SDAC12
SDAC13
P2.2
P2.3/STP
P3.4/T0
P3.5/T1
HIN
VIN
PP
22
..
54
//
SS
DDS S SS S
SS SS
A A D D DD DP P P D DP D DP
C CA A A A A 4 4 V 3 A A 4 A A 3
1 1 C C CC C . . D . C C . C C .
1 09 8 76 56 5 D7 4 34 2 13
6666 666 6
987 654 32 1 8765 432 1
10 60
11 59
12 58
13 57
14 56
15 55
16 54
17
18
19
W78E354P
(PLCC-68)
53
52
51
20 50
21 49
22 48
23 47
24 46
25 45
26 44
22233333333334444
78901234567890123
SDAC0
BDDAC
DDAC2
DDAC1
DDAC0
P4.3
VPP
P4.2
VDD
P1.5/SOA
P1.4/HCLAMP
P1.3/DSDA
P1.2/DSCL
P1.1
P1.0
P4.1
P4.0
HV B B P P RV V A A V A A T PP
OOS S 3 3 E S S DDA DDe 3 3
UUDD . . S SSCCA CCs . .
TTAA0 1 E A0 1 2 3 t 26
CC / / T
/ /C /
0 1RT
PL I
XX P1K N
DD 1 . T
.7 0
6
-2-


Part Number W78E354
Description MONITOR MICROCONTROLLER
Maker Winbond
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W78E354 Datasheet PDF






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