ST72774 查看數據表（PDF） - STMicroelectronics

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ST72774

8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C

STMicroelectronics 

Pin No.

Pin Name

Type

ST72774/ST727754/ST72734

Description

Remarks

18 23 PD3/VFBACK/ITA

I/O

Port D3 or SYNC Vertical flyback input or interrupt fall-

ing edge detector input A

Refer to Figure 16 and

Table 11 Port D De-

scription

19 24 PD4/ITB

I/O Port D4 or Interrupt falling edge detector input B

Refer to Table 11 Port

D Description

20 25 PD5/HFBACK

I/O Port D5 or SYNC horizontal flyback input

TTL levels with pull-up

(SYNC input)

21 26 PD6/CLAMPOUT I/O Port D6 or SYNC clamping/ MOIRE output

22 27 PB0/SCLD

I/O Port B0 or DDC serial clock

24 28 PB1/SDAD

I/O Port B1 or DDC serial data

25 29 PB2/SCLI

I/O Port B2 or I2C serial clock

26 30 PB3/SDAI

I/O Port B3 or I2C serial data

27 31 PA7/BLANKOUT I/O Port A7 or SYNC blanking output

28 32 OSCOUT

O Oscillator output

29 33 OSCIN

I Oscillator input

30 34 PA6

I/O Port A6

31 35 PA5

I/O Port A5

32 36 PA4

I/O Port A4

33 37 PA3

I/O Port A3

34 38 PA2/VSYNCI2

I/O Port A2 or SYNC vertical synchronisation input 2

DDC1 only

35 39 PA1

I/O Port A1

36 40 RESET

I/O Reset pin

Active low

37 41 TEST/VPP

S

Test mode pin or EPROM programming voltage. This

pin should be tied low in user mode.

38 42 PA0/OCMP1

I/O Port A0 or TIMER output compare 1

9/144

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