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

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产品描述 (功能)

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87C055

3.5-12 MHz, microcontroller for TV and video

Philips Electronics 

Philips Semiconductors

Microcontrollers for TV and video (MTV)

5 BLOCK DIAGRAM

Product specification

83C145; 83C845

83C055; 87C055

handbook, full pagewidth

T0

INT1 INT0

VDD

XTAL1

(IN)

XTAL2

(OUT)

8-BIT

TIMER /

EVENT

COUNTER

CPU

BF VID1 VCTRL VCLK1 HSYNC

VID2 VID0 VCLK2 VSYNC

ROM

(1)

RAM

256 bytes

OSD BLOCK

DISPLAY

RAM

128 × 10

CHARACTER

GENERATOR

ROM

60 × 18 × 14

8-bit internal bus

RST

VSS

80C51

core

excluding

ROM / RAM

PARALLEL

I/O

PORTS

8 x 6-BIT PWM

14-BIT

PWM

SOFTWARE

CONTROL

ADC

884 8

8

P3 P2 P1 P0 PWM0 to PWM7

TDAC

3

MBE766

ADI2 to ADI0

(1) ROM sizes: see Table 1.

5.1 Part options

Table 1 Differences between the types

MEMORY

ROM

EPROM (OTP)

83C845

8 kbytes

−

Fig.1 Block diagram.

83C145

12 kbytes

−

TYPES

83C055

16 kbytes

−

87C055

−

16 kbytes

1996 Mar 22

4

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