ST72321_04 datasheet(12/189 Pages) STMICROELECTRONICS

Part #	ST72321

Description	64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC,FIVE TIMERS, SPI, SCI, I2C INTERFACE

Download	189 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

12 / 189 page

ST72321

12/189

Notes:

1. In the interrupt input column, “eiX” defines the associated external interrupt vector. If the weak pull-up

column (wpu) is merged with the interrupt column (int), then the I/O configuration is pull-up interrupt input,

else the configuration is floating interrupt input.

2. In the open drain output column, “T” defines a true open drain I/O (P-Buffer and protection diode to VDD

are not implemented). See See “I/O PORTS” on page 46. and Section 12.8 I/O PORT PIN CHARACTER-

ISTICS for more details.

3. OSC1 and OSC2 pins connect a crystal/ceramic resonator, or an external source to the on-chip oscil-

lator; see Section 1 INTRODUCTION and Section 12.5 CLOCK AND TIMING CHARACTERISTICS for

more details.

4. On the chip, each I/O port may have up to 8 pads. Pads that are not bonded to external pins are in input

pull-up configuration after reset. The configuration of these pads must be kept at reset state to avoid add-

ed current consumption.

51

36

PA6 (HS)/SDAI

I/O CT HS

X

TPort A6

I2C Data 1)

52

37

PA7 (HS)/SCLI

I/O CT HS

X

TPort A7

I2C Clock 1)

53

38

VPP/ ICCSEL

I

Must be tied low. In flash programming

mode, this pin acts as the programming

voltage input VPP. See Section 12.9.2

for more details. High voltage must not

be applied to ROM devices

54

39

RESET

I/O CT

Top priority non maskable interrupt.

55

-

EVD

External voltage detector

56

TLI

I

CT

X

Top level interrupt input pin

57

40

VSS_2

S

Digital Ground Voltage

58

41

OSC23)

I/O

Resonator oscillator inverter output

59

42

OSC13)

I

External clock input or Resonator oscil-

lator inverter input

60

43

VDD_2

S

Digital Main Supply Voltage

61

44

PE0/TDO

I/O CT

X

Port E0

SCI Transmit Data Out

62

1

PE1/RDI

I/O CT

X

Port E1

SCI Receive Data In

63

-

PE2 (Flash device)

I/O CT

X

Port E2

Caution: In Flash devices this port is al-

ways input with weak pull-up.

PE2 (ROM device)

X

XX

Port E2

Caution: In ROM devices, no weak

pull-up present on this port.

In TQFP44 this pin is not connected to

an internal pull-up like other unbonded

pins (See note 4). It is recommended to

configure it as output push pull to avoid

added current consumption.

64

-

PE3

I/O CT

X

XX

X

Port E3

Pin n°

Pin Name

Level

Port

Main

function

(after

reset)

Alternate function

Input

Output

Similar Part No. - ST72321_04

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	ST723216	2Mb / 185P	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE August 2003 Rev. 1.9
	ST723217	2Mb / 185P	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE August 2003 Rev. 1.9
	ST723219	2Mb / 185P	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE August 2003 Rev. 1.9
	ST72321AR6	2Mb / 185P	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE August 2003 Rev. 1.9
	ST72321AR6-Auto	2Mb / 243P	PLL for 2x frequency multiplication August 2010 Rev 1

More results

Similar Description - ST72321_04

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	ST72F321	3Mb / 189P	64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
	ST72321B	3Mb / 187P	64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface
	ST72F521R6TA	3Mb / 215P	80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
	ST72F521	4Mb / 215P	80/64-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
	ST72325	1Mb / 193P	8-BIT MCU WITH 16 TO 60K FLASH/ROM, ADC, CSS, FIVE TIMERS, SPI, SCI, I2C INTERFACE
	ST72325	3Mb / 196P	8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface
	ST72325XX	3Mb / 197P	8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface
	ST72321M6	2Mb / 175P	80-pin 8-bit MCU with 32 to 60 Kbytes Flash, ADC, five timers, SPI, SCI, I2C interface
	ST72321	2Mb / 185P	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE August 2003 Rev. 1.9
	ST7232A	1Mb / 154P	8-BIT MCU WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE

More results

ST72321 Datasheet(PDF) 12 Page - STMicroelectronics

ST72321 Datasheet(HTML) 12 Page - STMicroelectronics

Similar Part No. - ST72321_04

Similar Description - ST72321_04

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL