ST72C334N2B6 STMicroelectronics, ST72C334N2B6 Datasheet - Page 11

• Manufacturer Part Number: ST72C334N2B6
• Description: Microcontrollers (MCU) Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334N2B6

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 44
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: SDIP-56
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / Rohs Status: No

29 18 18 13 PF4/OCMP1_A
30
31 19 19 14 PF6 (HS)/ICAP1_A
32 20 20 15 PF7 (HS)/EXTCLK_A I/O C
33 21 21
34 22 22
35 23 23 16 PC0/OCMP2_B
36 24 24 17 PC1/OCMP1_B
37 25 25 18 PC2 (HS)/ICAP2_B
38 26 26 19 PC3 (HS)/ICAP1_B
39 27 27 20 PC4/MISO
40 28 28 21 PC5/MOSI
41 29 29 22 PC6/SCK
42 30 30 23 PC7/SS
43 31
44 32
45 33
46 34 31 24 PA3
47 35 32 25 V
48 36 33 26 V
49 37 34 27 PA4 (HS)
50 38 35 28 PA5 (HS)
51 39 36 29 PA6 (HS)
52 40 37 30 PA7 (HS)
53 41 38 31 ISPSEL
54 42 39 32 RESET
55
56
57 43 40 33 V
58 44 41 34 OSC2
59 45 42 35 OSC1
60 46 43 36 V
61 47 44 37 PE0/TDO
62 48 1 38 PE1/RDI
63
64
Pin n
NC
V
V
PA0
PA1
PA2
NC
NC
NC
NC
DD_0
SS_0
DD_1
SS_1
SS_3
DD_3
Pin Name
I/O
I/O C
I/O
I/O
I/O C
I/O C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O C
I/O C
I/O C
I/O C
I/O
I/O
I/O
S
S
S
S
S
S
I
Level
T
T
T
T
T
T
T
T
C
C
C
C
C
C
C
C
C
C
C
C
C
C
T
T
T
T
T
T
T
T
T
T
T
T
T
HS
HS
HS
HS
HS
HS
HS
HS
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Input
EI0
EI0
EI0
EI0
Port
Output
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
T
T
X
X
ST72334J/N, ST72314J/N, ST72124J
Not Connected
Not Connected
Not Connected
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
function
Port F4
Port F6
Port F7
Digital Main Supply Voltage
Digital Ground Voltage
Port C0 Timer B Output Compare 2
Port C1 Timer B Output Compare 1
Port C2 Timer B Input Capture 2
Port C3 Timer B Input Capture 1
Port C4 SPI Master In / Slave Out Data
Port C5 SPI Master Out / Slave In Data
Port C6 SPI Serial Clock
Port C7 SPI Slave Select (active low)
Port A0
Port A1
Port A2
Port A3
Digital Main Supply Voltage
Digital Ground Voltage
Port A4
Port A5
Port A6
Port A7
Must be tied low in user mode. In pro-
gramming mode when available, this pin
acts as In-Situ Programming mode se-
lection.
Top priority non maskable interrupt (ac-
tive low)
Digital Ground Voltage
These pins connect a parallel-resonant
crystal or an external clock source to the
on-chip main oscillator.
Digital Main Supply Voltage
Port E0 SCI Transmit Data Out
Port E1 SCI Receive Data In
reset)
(after
Main
Timer A Output Compare 1
Timer A Input Capture 1
Timer A External Clock Source
Alternate function
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