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PDF ( 数据手册 , 数据表 ) ST92R195B

零件编号 ST92R195B
描述 ROMLESS HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
制造商 ST Microelectronics
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ST92R195B 数据手册, 描述, 功能
ST92R195B
ROMLESS HCMOS MCU WITH
ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
DATA BRIEFING
s Register File based 8/16 bit Core Architecture
with RUN, WFI, SLOW and HALT modes
s 0°C to +70°C Operating Temperature Range
available
s Up to 24 MHz Operation @ 5V±10%
s Minimum instruction cycle time: 375ns at
16 MHz internal clock
s 4 Mbytes address space
s 256 Bytes RAM of Register file (accumulators or
index registers)
s 1024 Bytes of on-chip static RAM
s 8K Bytes of TDSRAM (Teletext and Display
Storage RAM)
s 80-lead QFP package
s 23 fully programmable I/O pins
s Serial Peripheral Interface
s Flexible Clock controller for OSD, Data Slicer
and Core clocks running from one single low
frequency external crystal.
s Enhanced Display Controller with 26 rows of
40/80 characters
– Serial and Parallel attributes
– 10x10 dot Matrix, 512 ROM characters, defin-
able by user
– 4/3 and 16/9 supported in 50/60Hz and 100/
120 Hz mode
– Rounding, fringe, double width, double height,
scrolling, cursor, full background color, half-
intensity color, translucency and half-tone
modes
s Teletext unit, including Data slicer, Acquisition
Unit and 8 Kbytes TDSRAM for Data Storage
s VPS and Wide Screen Signalling slicer
s Integrated Sync Extractor and Sync Controller
s 14-bit Voltage Synthesis for tuning reference
voltage
s Up to 8 External Interrupts plus 1 non-maskable
interrupt
QFP80
s 8 x 8-bit programmable PWM outputs with 5V
open-drain or push-pull capability
s 16-bit Watchdog timer with 8-bit prescaler
s One 16-bit standard timer with 8-bit prescaler
s 4-channel Analog-to-Digital converter; 5-bit
guaranteed
s Rich instruction set and 14-Addressing modes
Versatile Development Tools, including Assem-
bler, Linker, C-compiler, Archiver, Source Level
Debugger and Hardware Emulators with Real-
Time Operating System available from third par-
ties
Device Summary
Device
ST92R195B9
Program
Memory
ROMLESS
TDS
RAM
VPS/
WSS
Package
8K Yes PQFP80
January 2000
Rev. 2.2
1/18
1







ST92R195B pdf, 数据表
ST92R195B - GENERAL DESCRIPTION
PIN DESCRIPTION (Cont’d)
1.2.2 I/O Port Styles
Pin s
P0[2:0]
P2[5,4,3,2]
P2[1:0]
P3.7
P3[6,5,4]
P4[7:0]
P5[1:0]
Physical Pull-Up
no
no
no
yes
no
no
no
Pin Style
standard I/O
standard I/O
std I/O, trigger
standard I/O
standard I/O
standard I/O
standard I/O
Reset Values
BID / OD / TTL
BID / OD / TTL
BID / OD / TTL
AF / PP / TTL
BID / OD / TTL
BID / OD / TTL
BID / OD / TTL
Legend:
AF= Alternate Function, BID = Bidirectional, OD = Open Drain
PP = Push-Pull, TTL = TTL Standard Input Levels
How to Read this Table
To configure the I/O ports, use the information in
this table and the Port Bit Configuration Table in
the I/O Ports Chapter of the datasheet.
Port Style= the hardware characteristics fixed for
each port line.
Inputs:
– If port style = Standard I/O, either TTL or CMOS
input level can be selected by software.
– If port style = Schmitt trigger, selecting CMOS or
TTL input by software has no effect, the input will
always be Schmitt Trigger.
Weak Pull-Up = This column indicates if a weak
pull-up is present or not.
– If WPU = yes, then the WPU can be enabled/dis-
able by software
– If WPU = no, then enabling the WPU by software
has no effect
Alternate Functions (AF) = More than one AF
cannot be assigned to an external pin at the same
time:
An alternate function can be selected as follows.
AF Inputs:
– AF is selected implicitly by enabling the corre-
sponding peripheral. Exception to this are ADC
analog inputs which must be explicitly selected
as AF by software.
AF Outputs or Bidirectional Lines:
– In the case of Outputs or I/Os, AF is selected
explicitly by software.
Example 1: ADC trigger digital input
AF: EXTRG, Port: P4.7, Port Style: Standard I/O.
Write the port configuration bits (for TTL level):
P4C2.7=1
P4C1.7=0
P4C0.7=1
Enable the ADC trigger by software as described
in the ADC chapter.
Example 2: PWM 0 output
AF: PWM0, Port: P4.0
Write the port configuration bits (for output push-
pull):
P4C2.0=0
P4C1.0=1
P4C0.0=1
Example 3: ADC AIN1 analog input
AF: AIN1, Port : P2.1, Port style: does not apply to
analog inputs
Write the port configuration bits:
P2C2.1=1
P2C1.1=1
P2C0.1=1
8/18







ST92R195B equivalent, schematic
ST92R195B - ELECTRICAL CHARACTERISTICS
A/D CONVERTER. ANALOG PARAMETERS TABLE
(VDD= 5V +/-10%; TA= 0 to 70°C; unless otherwise specified)
Parameter
Analog Input Range
Conversion Time Fast/Slow
typ (*)
Value
min
VSS
78/138
Sample Time Fast/Slow
51.5/87.5
Power-up Time
Resolution
Differential Non Linearity
Integral Non Linearity
Absolute Accuracy
60
8
1.5
2
2
Input Resistance
Hold Capacitance
max
VDD
2.5
3
3
1.5
1.92
Notes: (*)
(**)
(1)
(2)
(3)
(4)
The values are expected
’LSBs’ , as used here, as
at 25 Celsius degrees
a value of VDD/256
with
VDD=
5V
@ 24 MHz external clock
including Sample time
it must be considered as the on-chip series resistance before the sampling capacitor
DNL ERROR= max {[V(i) -V(i-1)] / LSB-1}
INL ERROR= max {[V(i) -V(0)] / LSB-i}
ABSOLUTE ACCURACY= overall max conversion error
Unit
(**)
V
INTCLK
INTCLK
µs
bits
LSBs
LSBs
LSBs
Kohm
pF
Note
(1,2)
(1)
(4)
(4)
(4)
(3)
16/18










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