83C145 Datasheet, PDF (10/40 Pages) NXP Semiconductors – Microcontrollers for TV and video MTV

Philips Semiconductors
Microcontrollers for TV and video (MTV)
Product specification
83C145; 83C845
83C055; 87C055
handbook, full pagewidth
ZERO
6
1st PWM MODULE (n = 0)
P1.3
8
PWM0/P1.3
8
6
P0.1
2nd PWM MODULE (n = 1)
PWM1/P0.1
8
6
P0.2 to P0.6
3rd to 7th PWM MODULE (n = 2 to 6)
PWM2/P0.2
to
8 ^PWM6/P0.6
6
6
8th PWM MODULE (n = 7)
P0.7
PWM7/P0.7
8
LS 6-bits
14-BIT COUNTER
PWM clock
4
fxtal
14-BIT PWM
DAC BLOCK
MBE771 - 1
Fig.3 6-bit PWM DAC logic circuit.
internal bus
handbook, full pagewidth
PWM module (n)
ZERO
LS 6-bits
6-bit
COMPARATOR
6-bits (PVn0 to PVn5)
8
PVn0 PVn1 PVn2 PVn3 PVn4 PVn5
internal bus
PWM clock
(1)
(2)
PWnE
(1) This flip-flop occurs in 5 of the 8 PWMn modules.
(2) This flip-flop occurs in 3 of the 8 PWMn modules.
Fig.4 A 6-bit PWM module.
1996 Mar 22
10
I/O port
PWMn
I/O pin
MBE770