SGS Thomson Microelectronics ST9294 Datasheet
ST9294
24K ROM HCMOS MCU WITH
ON SCRE EN DISPLA Y AND C LOSED -CAPTI ON DATA SLICER
FUNCTIONAL DESCRIPTION
Register oriented 8/ 16 bit C OR E with
RUN, WFI and HALT modes
Minimum instruct ion cycle time: 500ns
(12MHz internal)
12 to 32K bytes of ROM,
384/640 bytes of RAM ,
224 general purpose registers available as R AM,
accumulators or index registers (Register File)
42-lead Shrink DIP package or
56-lead Shrink DIP packag e
Interrupt handler and Serial P eripheral Interface
as standard features
31 (42 pin package) / 42 (56 pin package) fully
programmable I/O pins
34 character x15 rows software programmable
On Screen Dis play module with c olour, italic, underline, flash, transparent and fringe attribute
options
Digital Data Slicer extracting closed caption data
from video
8 8-bit PWM D/A outputs with repetition frequency 2 to 32kHz and 12V Open Drain
Capability
16 bit Timer wit h 8 bit Pres caler, able to be used
as a Watchdog Timer
16-bit programmable Slice Timer with 8-bit prescaler
3 channel Analog to Digital Converter, with integral sample and hold, fast 5.75µs conversion
time, 6-bit guaranteed resolution
Rich Instruct ion S et and 14 A ddressing modes
Division-by-Zero trap generati on
Versatile Development tools, including assembler,
linker, C-compiler, archiver, graphic oriented debugger and hardware emulators
Real Time Operating Sys tem
Windowed EPROM parts available for prototyp-
ing and pre-production development phases
(Ordering Information at the end of the Datasheet)
PSDIP42
PSDIP56
May 1993
This is Preliminary Data from SGS-THOMSON. Details are subject to change without notice.
1/6
ST9294
Figure 1a. 42 Pin Shrink DIP Pinout
ST9294J Pin Description
DD
Pin
name
Pin
42 P2.1/INT5/AIN1
41 P2.2/INT0/AIN2
40 P2.3/INT6/SDO
39 P2.4/NMI
38 P2.5/AIN3
37 OSCIN
36 OSCOUT
35 P4.7/PWM7/
EXTRG (AD)
34 P4.6/PWM6
33 P4.5/PWM5
32 P4.4/PWM4
31 P4.3/PWM3
30 P4.2/PWM2
29 P4.1/PWM1
28 P4.0/PWM0
27 VSYNC
26 HSYNC
25 AV
24 PLLR
23 PLLF
22 V
SS
Pin
1 P2.0/INT7
2 RESET
3 P0.7
4 P0.6
5 P0.5
6 P0.4
7 P0.3
8 P0.2
9 P0.1
10 P0.0
11 CCVideo
12 P3.6
13 P3.5
14 P3.4
15 P3.3/B
16 P3.2/G
17 P3.1/R
18 P3.0/FB
19 P5.1/SDIO
20 P5.0/SCK/INT2
21 V
2/6
DD
Pin
name
Figure 1b. 56 Pin Shrink DIP Pinout
ST9294N Pin Description
Pin
1 P2.1/INT5/AIN1
2 P2.0/INT7
3
4P0.7
5P0.6
6P0.5
7NC
8P0.4
9P0.3
10 P0.2
11 P0.1
12 P0.0
13 NC
14 V
15
16 P3.7
17 P3.6
18 P3.5
19 P3.4
20 P3.3/B
21 P3.2/G
22 P3.1/R
23 P3.0/FB
24 P5.3
25 P5.2
26 P5.1/SDIO
27 P5.0/SCK/INT2
28 V
name
RESET
DD
CCVideo
DD
Pin
Pin
56 P2.2/INT0/AIN2
55 P2.3/INT6/SDO
54 P2.4/NMI
53 P2.5/AIN3
52 P1.0
51 P1.1
50 P1.2
49 P1.3
48 P1.4
47 P1.5
46 P1.6
45 P1.7
44 OSCIN
43 OSCOUT
42
41 P4.6/PWM6
40 P4.5/PWM5
39 P4.4/PWM4
38 P4.3/PWM3
37 P4.2/PWM2
36 P4.1/PWM1
35 P4.0/PWM0
34 VSYNC
33 HSYNC
32 AV
31 PLLR
30 PLLF
29 V
Pin
name
P4.7/PWM7/
EXTRG (AD)
DD
SS
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