p87c770 ETC-unknow, p87c770 Datasheet - Page 27

• Manufacturer Part Number: p87c770
• Description: Microcontrollers Ntsc With On-screen Display Closed Caption
• Manufacturer: ETC-unknow

Philips Semiconductors
1999 Jun 11
handbook, full pagewidth
handbook, full pagewidth
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
Power-on-
Oscillator
reset
running
voltage
Supply
CPU
10 F
T p
V DD
RESET
START-UP
8 k
2048 clocks
Fig.10 Power-on reset switching level.
on-chip circuit
Fig.9 On-chip reset configuration.
R RESET
TRIGGER
SCHMITT
27
Power-on-reset
T p
overflow Watchdog Timer
2048 clocks
RSTOUT
CIRCUITRY
RESET
P8xCx70 family
MBK878
MGR379
POC
Product specification
V t
V t