87C055 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

87C055

3.5-12 MHz, microcontroller for TV and video

Philips Electronics 

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

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