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ST92E195B7 bảng dữ liệu(PDF) 6 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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ST92195B - GENERAL DESCRIPTION
PIN DESCRIPTION (Cont’d)
RESET
Reset (input, active low). The ST9+ is ini-
tialised by the Reset signal. With the deactivation
of RESET, program execution begins from the
Program memory location pointed to by the vector
contained in program memory locations 00h and
01h.
R/G/B
Red/Green/Blue. Video color analog DAC
outputs.
FB
Fast Blanking. Video analog DAC output.
VDD Main power supply voltage (5V±10%, digital)
WSCF, WSCR Analog pins for the VPS/WSS slic-
er . These pins must be tied to ground or not con-
nected.
VPP: On EPROM/OTP devices, the WSCR pin is
replaced by VPP which is the programming voltage
pin. VPP should be tied to GND in user mode.
MCFM Analog pin for the display pixel frequency
multiplier.
OSCIN, OSCOUT
Oscillator (input and output).
These pins connect a parallel-resonant crystal
(24MHz maximum), or an external source to the
on-chip clock oscillator and buffer. OSCIN is the
input of the oscillator inverter and internal clock
generator; OSCOUT is the output of the oscillator
inverter.
VSYNC
Vertical Sync. Vertical video synchronisa-
tion input to OSD. Positive or negative polarity.
HSYNC/CSYNC
Horizontal/Composite sync. Hori-
zontal or composite video synchronisation input to
OSD. Positive or negative polarity.
PXFM Analog pin for the Display Pixel Frequency
Multiplier
AVDD3
Analog VDD of PLL. This pin must be tied
to VDD externally.
GND Digital circuit ground.
AGND Analog circuit ground (must be tied exter-
nally to digital GND).
CVBS1 Composite video input signal for the Tele-
text slicer and sync extraction.
CVBS2 Composite video input signal for the VPS/
WSS slicer. Pin AC coupled.
AVDD1, AVDD2 Analog power supplies (must be
tied externally to AVDD3).
TXCF Analog pin for the Teletext slicer line PLL.
CVBSO, JTDO, JTCK Test pins: leave floating.
TEST0 Test pins: must be tied to AVDD2.
JTRST0 Test pin: must be tied to GND.
Figure 3. 56-Pin Package Pin-Out
INT7/P2.0
RESET
P0.7
P0.6
P0.5
P0.4
P0.3
AIN4/P0.2
P0.1
P0.0
CSO/RE SET0/P3.7
P3.6
P3.5
P3.4
B
G
R
FB
SDI/SDO/ P5.1
SCK/INT2/P5. 0
VDD
JTDO
WSC F
VPP/WSCR
AVDD3
TEST 0
MCFM
JTCK
P2.1/INT5/AIN1
P2.2/INT0/AIN2
P2.3/INT6/VS01
P2.4/NMI
P2.5/AIN3/INT4 /VS02
OSCIN
OSCOUT
P4.7/PWM7/EX TRG/ST OUT
P4.6/PWM6
P4.5/PWM5
P4.4/PWM4
P4.3/PWM3/TSL U/HT
P4.2/PWM2
P4.1/PWM1
P4.0/PWM0
VSYNC
HSYNC/CSYNC
AVDD1
PXFM
JTRSTO
GND
AGND
CVBS 1
CVBS 2
JTMS
AVDD2
CVBS O
TXCF
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