SGS Thomson Microelectronics ST72T752J6B1, ST72E752J6D1, ST72752J6, ST72752J5, ST72752J4 Datasheet
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ST72752
8-BIT MCU FOR MONITORS WITH UP T O 32K ROM, 1K RAM, ADC,
2
TIMER, SYNC, PWM/BRM, DDC/DMA & I
■
User ROM/OTP/EPROM: up to 32 Kbytes
■
Data RAM: up to 1 Kbytes (256 bytes stack)
■
8 MHz Maximum Internal Clock Frequency in
fast mode, 4 MHz in normal mode
■
Run, Wait and Halt CPU modes
■
Sync Processor for Mode Recognition, power
management and composite video blanking,
clamping and free-running frequency
generation.
– Corrector mode
– Analyzer mode
■
Fast I2C Multi Master Interface
■
DDC Bus Interface fully compliant with DDC1,
2B, 2B+, 2AB, 2Bi standards
■
23 I/O lines
– 1 high current I/O (10 mA)
– Up to 5 high voltage outputs (9V)
■
16-bit timer with 2 in put captures an d 2 output
compare functions (with 1 output pin)
■
8-bit Analog to Digital Converter with 4
channels on port B
■
8 10-bit PWM/BRM Digital to Analog outputs
■
One 12-bit PWM/BRM Digital to Analog output
■
Master Reset and Power on/off reset1
■
Programmable Watchdog for system reliability
■
42-pin Shrink Dual In line Plastic package
■
Fully static operation
■
0 to + 70 oC Operating Temperature Range
■
4.0V to 5.5V supply operating range
■
24 MHz Quartz Oscillator
■
63 basic instructions/17 main address modes
■
8x8 unsigned multiply instruction
■
True bit manipulation
■
Versatile Development Tools (DOS and
Windows) including assembler, linker, Ccompiler, archiver, source level debugger,
programmer, and hardware emulator
BRIEF DATA
PSDIP42
See Ordering Information at the end of the Document
Device Summary
Features ST72752J6 ST72752J5 ST72752J4
ROM
(bytes)
RAM
(bytes)
ADC 4 channels
Timer 1
2
I
C Bus one multimaster
DDC/DMA yes
Sync yes
PWM 9
I/O 23
EPROM
Device
OTP
Device
32K 24K 16K
1K 768 512
ST72E752J6D1
ST72T752J6B1
C
Note 1
: Power On/Off reset not implemented in
this revision.
April 1998 1/3
This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without noti ce.
1
ST72752
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72752 is a HCMOS microcontroller unit
(MCU) from the ST7 family with dedicated peripherals for Monitor applications.
It is based around an indu stry standard 8-bi t core
and offers an enhanced i nstruction set. The processor runs with an external clock at 24 MHz with
a 5V supply. Due to the fully static de sign of this
device, operation down to DC is possible. Under
software control the ST72752 can be placed in
WAIT or HALT mode thus reducing power consumption. The enhanced instruction set and addressing modes afford real programming potential.
Figure 1. .ST72752 Block Diagram
PORT A
1K Bytes
A
Y
X
C
C
INTERNAL
CLOCK
PORT B
S
E
S
U
B
A
T
A
D
/
S
S
E
R
D
D
A
PORT C
PORT C
TIMER
WATCHDOG
SYNC
PROCES SOR
PORT D
PWM/BRM
Up to
CONTROL
8-BIT CORE
POWER ON/OFF
POWER
SUPPLY
32K Bytes
ROM/
EPROM/OTP
Up to
RAM
DDC DMA
ALU
L
H
C
C
P
P
P
S
OSC /3 or 6
In addition to standard 8-bit data management the
ST7 features true bit manipulation, 8x8 unsigned
multiplication and indirect addressing modes.
The device includes an on-chip oscillator, CPU,
Sync Processor for video timing & Vfbac k analysis, up to 32K ROM, up to 1K RAM, I/O, a timer
with 2 input captures and 2 o utput compares , a 4channel Analog to Digital Converter, DDC/DMA,
2
C multi Master, Watchdog Reset, and one 12-bit
I
and eight 10-bit PWM/BRM outputs for analog DC
control of external functions.
PA1(HV)
PA3..6(HV)
PA7/BLANKOUT
V
DDA
V
SSA
ADC
I²C
DDC
AIN 0..2, AIN7
SCLD
SDAD
OCMP
C
N
C
Y
N
S
Y
C
/
S
V
H
I
C
N
Y
S
C
PB7/AIN7
PB1..2/ AI N1 ..2
PB0
/
VFBACK/AIN0
VFBACK
I
I
A
L
D
S
O
O
C
C
N
N
Y
Y
S
S
V
H
PC6 (HC)
C
S
PC5/SDAI
PC4/SCLI
PC3/SDAD
PC2/RX/SCLD
PC0/OCMP/HFBACK
RESET
K
C
A
B
F
H
VSYNCI
HSYNCI
T
U
PD6/CLAMPOUT
O
PD5/ITA
P
M
PD4/ITB
A
L
PD3/ITC
C
PD2/VSYNCO
PD1/HSYNCO
PD0/CSYNCI
DA0
DA1,DA8
2/3
V
V
DD
SS
OSCOUTOSCIN
VR01735R
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