UPSD3253B-40 Просмотр технического описания (PDF) - STMicroelectronics

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UPSD3253B-40

Flash Programmable System Devices with 8032 Microcontroller Core and 256Kbit SRAM

STMicroelectronics 

µPSD325X DEVICES

Table 1. µPSD325X Devices Product Matrix

Part

No.

Main

Flash

(bit)

Sec.

Flash

(bit)

SRAM

(bit)

Macro

-Cells

I/O

Pins

PWM

Ch.

Timer

/ Ctr

UART

Ch.

I2C

ADC

Ch.

DDC

USB

VCC

MHz

Pins

uPSD

3254 2M 256K 256K

A-40

16

41 or

50

5

3

2

1

4

yes

yes 5V

40

52 or

80

uPSD

3254 2M 256K 256K 16 50 5

3

2 1 4 yes

BV-24

3V 24 80

uPSD

3253 1M 256K 256K 16 41 5

3

2 1 4 yes

B-40

5V 40 52

uPSD

3253 1M 256K 256K 16 41 5

3

2 1 4 yes

BV-24

3V 24 52

Figure 3. TQFP52 Connections

PD1 1

PC7 2

PC6 3

PC5 4

USB– 5(1)

PC4 6

USB+ 7

VCC 8

GND 9

PC3 10

PC2 11

PC1 12

PC0 13

39 P1.5 / ADC1

38 P1.4 / ADC0

37 P1.3 / TXD1

36 P1.2 / RXD1

35 P1.1 / T2X

34 P1.0 / T2

33 VCC

32 XTAL2

31 XTAL1

30 P3.7 / SCL1

29 P3.6 / SDA1

28 P3.5 / T1

27 P3.4 / T0

AI05790C

Note: 1. Pull-up resistor required on pin 5 (2kΩ for 3V devices, 7.5kΩ for 5V devices) for all 52-pin devices, with or without USB function.

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