p87c770aar NXP Semiconductors, p87c770aar Datasheet - Page 6

• Manufacturer Part Number: p87c770aar
• Description: Microcontrollers Ntsc With On-screen Display Closed Caption
• Manufacturer: NXP Semiconductors

Philips Semiconductors
5.2
Table 1 SDIP52 package
1999 Jun 11
P0.0/PWM8
to P0.7/PWM1
P1.0/AFT0
P1.1/AFT1
P1.2/AFT2
P1.3/PWM0
V
P2.7 to P2.0
V
CVBS
STN
BLK
IREF
PSEN
V
ALE/PROG
P1.4
REFH
B
G
R
FB
HSYNC
VSYNC
V
V
V
XO
XI
RESET
V
P3.0/INT1
P3.1/T0
P3.2/INT0
P3.3/T1
SSD
SSA
PP
DDA
DDP
SSD
DDC
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
SYMBOL
/EA
Pin description
14 to 21
1 to 8
PIN
10
11
12
13
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
9
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
Port 0 lines P0.0 to P0.7 (open-drain, bidirectional); alternative functions 7-bit
PWM outputs.
Port 1 line P1.0; alternative function as 4-bit AFT0 input.
Port 1 line P1.1; alternative function as 4-bit AFT1 input.
Port 1 line P1.2; alternative function as 4-bit AFT2 input.
Port 1 I/O line P1.3 (open-drain, bidirectional); alternative function as 7-bit PWM0
output.
Ground line for digital circuits.
Port 2 lines P2.7 to P2.0 (open-drain, bidirectional).
Ground line for analog circuits.
Composite video input.
Data Slicer decoupling capacitor input, connect to V
CVBS signal black level reference, connect to V
CVBS signal reference current input, connect to V
Program Store Enable (active LOW); bonded out for testing purpose only.
External Access (active LOW); bonded out for testing purpose only. This pin is also
used for the 12.75 V programming voltage supply in OTP programming modes.
Address Latch Enable; bonded out for testing purpose only. This pin is also used
for programming pulses input in OTP programming modes.
Port 1 line P1.4 (open-drain, bidirectional).
Data Slicer reference high capacitor input, connect to V
CC/OSD Blue colour current output.
CC/OSD Green colour current output.
CC/OSD Red colour current output.
CC/OSD fast blanking output.
TV horizontal sync input (for OSD synchronization).
TV vertical sync input (for OSD synchronization).
+5 V analog power supply.
+5 V digital power supply for peripherals.
Ground line for digital circuits.
System oscillator crystal output.
System oscillator crystal input.
Reset input (active HIGH).
+5 V digital power supply for CPU core.
Port 3 line P3.0; alternative function as external interrupt 1 input.
Port 3 line P3.1; alternative function as Counter 0 input.
Port 3 line P3.2; alternative function as external interrupt 0 input.
Port 3 line P3.3; alternative function as Counter 1 input.
6
DESCRIPTION
SSA
SSA
SSA
via a 100 nF capacitor.
via a 27 k resistor.
SSA
via a 100 nF capacitor.
P8xCx70 family
via a 100 nF capacitor.
Product specification